Assertiveness Training: Does It Work? Evidence, Techniques, and Limitations
Author: Ukrainian Psychological Hub · Published: September 22, 2026 · Editorial Policy
Assertiveness training is a structured way to practice expressing needs, preferences, opinions, refusals, disagreement, and limits directly while respecting the rights and dignity of other people. It has deep roots in behavior therapy and remains part of cognitive-behavioral and social-skills approaches, but it is not one standardized treatment package with one universal dose or one guaranteed outcome. The Association for Behavioral and Cognitive Therapies describes assertiveness training as an assessment-and-practice process that can include behavioral rehearsal, feedback, verbal and nonverbal skills, and work on beliefs that inhibit assertive behavior (ABCT).
The short answer to “Does assertiveness training work?” is yes, for some outcomes and populations, with important limits. The strongest recent evidence is for improving assertive behavior or closely related communication outcomes and for reducing social-anxiety outcomes in selected samples. A 2026 meta-analysis of 12 randomized controlled trials involving 503 participants found a medium pooled effect on social anxiety, while rating the overall certainty of that evidence as moderate because of risk-of-bias concerns and unexplained heterogeneity (Hede, Malouff, & Meynadier, 2026).
Evidence outside social anxiety is more fragmented. Systematic reviews in nursing and healthcare suggest that structured assertive-communication training can improve speaking-up behavior and related skills, especially when programs include practice, simulation, or role-play, but results vary across studies and settings (Omura et al., 2017; Lee et al., 2023; Chen et al., 2023). The evidence does not support treating assertiveness training as a universal cure for anxiety, depression, relationship problems, workplace conflict, people pleasing, or the effects of coercion and abuse.
Assertiveness Training: The Short Answer
Assertiveness training can work when the outcome being trained is specific and observable. If the goal is to make a clear request, refuse an unwanted demand, express disagreement, speak up about a safety concern, give feedback, or tolerate the discomfort of stating a position, repeated instruction and behavioral practice can improve performance. The clinical literature treats assertiveness as partly a learnable behavioral repertoire rather than a fixed personality quality (Speed, Goldstein, & Goldfried, 2018; ABCT).
The answer becomes less certain when “work” is defined as improving broad outcomes such as self-esteem, depression, generalized anxiety, relationship satisfaction, occupational functioning, or long-term wellbeing. Some studies report improvements in these areas, but many are small, population-specific, old, or use multicomponent programs in which assertiveness is only one ingredient. For example, a 2024 randomized trial in college students combined mindfulness, assertiveness, and problem-solving skills, so reductions in stress, anxiety, and depression cannot be attributed to assertiveness training alone (ElBarazi et al., 2024).
A useful evidence-based conclusion is narrower than the marketing claim that assertiveness training “changes your life.” Assertiveness training is a plausible and empirically supported skills intervention. Its effect depends on the target behavior, the person, the setting, the training method, opportunities for practice, and the outcome being measured. It should be evaluated as a skill-building intervention rather than as a promise that other people will become cooperative or that complex clinical or relational problems will disappear.
What Is Assertiveness Training?
Assertiveness training is an intervention family rather than a single manual. Historically, it developed within behavior therapy and later incorporated cognitive techniques. Contemporary programs may appear as stand-alone assertion training, a component of cognitive-behavioral therapy, a social-skills module, a healthcare communication intervention, a workplace program, or part of a broader treatment package (Speed et al., 2018).
The central behavioral target is assertive action: communicating a relevant thought, feeling, preference, request, refusal, opinion, or limit clearly enough to be understood, while preserving regard for the other person's dignity and agency. That makes assertiveness different from dominance. The goal is not to win an interaction, force compliance, sound fearless, or eliminate every uncomfortable feeling. A person can act assertively while nervous, disappointed, uncertain, or aware that the other person may disagree.
Low assertiveness is not a diagnosis. There is no DSM or ICD disorder called “unassertiveness,” and a low score on an assertiveness questionnaire does not by itself establish a mental disorder, trauma history, attachment style, personality disorder, or interpersonal pathology. Assertiveness measures can be useful as research or training outcomes, but their interpretation depends on the instrument, population, setting, and purpose.
Assertiveness is contextual, not a single script
Appropriate assertiveness changes with context. The same sentence can function differently depending on role, timing, relationship, culture, power, safety, urgency, and consequences. Professional guidance from ABCT explicitly notes that there are no hard-and-fast rules that make one behavior assertive in every situation (ABCT).
That matters because internet advice often treats assertiveness as a grammar formula: say an “I statement,” never apologize, never explain, repeat yourself, and leave if the other person resists. Real interpersonal behavior is more complex. Sometimes explanation is considerate or professionally necessary. Sometimes negotiation is the assertive option. Sometimes strategic delay or silence is safer than immediate confrontation. A technique is useful when it serves a context-sensitive goal, not because it has the right wording.
What Does “Work” Mean in Assertiveness Research?
Evidence can look contradictory when different studies call different outcomes “success.” A program can increase self-reported assertiveness without changing workplace conditions. It can improve performance in a role-play without demonstrating long-term behavior change. It can reduce social anxiety without showing that relationships improve. It can increase willingness to speak up without proving that organizations respond safely when employees do so.
For that reason, the most informative reading of the literature separates proximal outcomes from distal outcomes. Proximal outcomes are close to what the program directly teaches: assertiveness scores, observable communication behavior, speaking-up behavior, or ability to perform a practiced skill. Distal outcomes include depression, generalized anxiety, job stress, relationship satisfaction, patient safety, burnout, self-esteem, or life satisfaction. Training effects are easier to interpret when the outcome is close to the behavior being practiced.
This distinction is visible in older clinical research. In a study of 68 psychiatric patients, a four-week assertiveness program increased assertiveness, but the decrease in social anxiety was not maintained at one-month follow-up and self-esteem did not significantly increase (Lin et al., 2008). The result is informative precisely because it shows that improvement in one target does not automatically spread to every neighboring outcome.
How Assertiveness Training Is Supposed to Work
Most assertiveness programs combine several learning mechanisms. The first is skill acquisition: a person may know what they want but lack a practiced way to state it. The second is reduction of behavioral inhibition: the person may possess the words but avoid using them because disagreement, evaluation, or conflict feels threatening. The third is cognitive change: beliefs such as “a refusal is selfish,” “disagreement means rejection,” or “I must explain until the other person approves” can make direct behavior harder. The fourth is generalization: a skill rehearsed in a session has to transfer into real situations.
Modern research captures this combination clearly. The 2026 meta-analysis of assertiveness training for social anxiety included programs that incorporated cognitive elements, role-play, and assignments to practice assertiveness in real-world situations (Hede et al., 2026). A 2023 internet-based CBT trial likewise combined psychoeducation, cognitive and behavioral exercises, practice across situations, and repeated work over eight weeks (Hagberg et al., 2023).
This helps explain why memorizing a sentence is usually weaker than training a behavioral sequence. Assertiveness in real life includes noticing the situation, deciding on a goal, choosing proportionate wording, tolerating the other person's reaction, adjusting when new information appears, and repeating or negotiating when needed. The learning target is flexible behavior under social pressure.
Core Assertiveness Training Techniques
Assertiveness programs differ, but several techniques recur across clinical guidance, trials, and systematic reviews. Their value comes from practice and feedback rather than from treating any single technique as a magic formula.
1. Behavioral rehearsal and role-play
Behavioral rehearsal is one of the clearest recurring methods. A participant describes a difficult interaction, practices it with a therapist, trainer, or group member, receives feedback, and repeats the scenario with adjustments. ABCT describes role-play and behavioral rehearsal as central methods, and nursing reviews repeatedly identify simulation or role-play as useful opportunities to practice speaking up (ABCT; Lee et al., 2023).
The practical strength of rehearsal is specificity. “Be more confident” is vague. “Tell a coworker that you cannot take a second urgent task unless priorities are changed” can be enacted, observed, revised, and practiced. Rehearsal can target wording, timing, tone, pace, listening, persistence, and response to pushback.
2. Modeling and feedback
In modeling, the trainer demonstrates an assertive response before the participant tries it. Feedback then focuses on what the behavior accomplished and what could be adjusted. Useful feedback is behavioral rather than personality-based: whether the request was clear, whether the refusal was audible, whether the message became lost in excessive qualification, or whether the delivery became threatening. ABCT explicitly describes modeling followed by rehearsal and supportive feedback (ABCT).
This method also makes room for individual style. Assertive communication does not require a particular accent, facial expression, amount of eye contact, or extroverted presentation. Nonverbal coaching should account for culture, disability, neurodivergence, communication style, and the actual demands of the situation rather than imposing one narrow social norm.
3. Cognitive work on predictions and beliefs
Many programs examine thoughts that inhibit assertive behavior. The target is not “positive thinking.” It is testing whether a prediction is accurate and useful. Someone may predict that one refusal will end a friendship, that a manager will view any question as insubordination, or that disagreement automatically makes them cruel. Cognitive work can identify the prediction, estimate its evidence, generate alternatives, and then test the prediction behaviorally.
The 2023 stand-alone internet CBT trial is important here because it treated assertiveness as a cognitive-behavioral target rather than only a communication lesson. Both guided and unguided versions produced substantial improvements on self-rated assertiveness compared with a wait-list condition, showing that structured cognitive-behavioral work can be delivered outside traditional face-to-face therapy in at least some populations (Hagberg et al., 2023).
4. Graded real-world practice
Assertiveness is situation-sensitive, so transfer matters. Training often moves from lower-stakes tasks to harder ones: expressing a preference, asking for clarification, declining a minor request, giving corrective feedback, disagreeing with an authority figure, or raising a high-stakes concern. The aim is not to manufacture conflict. It is to give the person repeated opportunities to act on a chosen position and learn what actually happens.
Real-world assignments were part of the intervention definition in the 2026 social-anxiety meta-analysis, which is one reason its findings are more relevant to behavioral change than evidence based only on classroom instruction (Hede et al., 2026). Still, most included studies relied on self-report outcomes, so the literature leaves room for stronger observation of everyday behavior.
5. Clear requests, refusals, disagreement, and feedback
Training commonly breaks broad “confidence” goals into communication functions. A request identifies what is being asked. A refusal makes the decision understandable. Disagreement states a different view without turning the other person into the problem. Feedback describes behavior and impact with enough specificity to support a response. These are closely related to assertive communication, but assertiveness training adds repeated practice, feedback, and generalization rather than stopping at explanation.
“I statements” can be useful when they make experience and responsibility clearer, but they are not required and do not prevent conflict automatically. “I need the report by Thursday to complete the review” may be appropriate. “Please stop sending messages after 10 p.m.; I will answer the next morning” may be clearer without an elaborate formula. The functional question is whether the message accurately communicates the relevant position while respecting the other person's agency.
6. Repetition and persistence
Some programs teach calm repetition when another person keeps reopening a settled request or refusal. Traditional assertiveness literature often calls this the “broken-record” technique, and ABCT includes it among example strategies (ABCT). The skill is persistence without escalation: repeating the core answer rather than generating a new defense each time.
Repetition is not automatically healthy. Repeatedly pressuring another person after they have refused is not assertiveness simply because the wording stays calm. The technique applies to maintaining one's own message, not overriding someone else's consent or using persistence as coercion.
7. Nonverbal communication
Training may address voice volume, pace, posture, interpersonal distance, listening, and other nonverbal behavior. These features can affect whether a message is heard as hesitant, clear, contemptuous, threatening, or collaborative. ABCT includes both verbal and nonverbal behavior in its description of assertiveness training (ABCT).
Nonverbal rules are especially context-dependent. Eye contact, emotional expressiveness, distance, interruption, silence, and vocal intensity vary across cultures and individuals. Training should improve communicative effectiveness without treating one culturally specific presentation as the universal appearance of psychological health.
What Does the Research Say? An Evidence Map
The evidence base is easier to understand when it is divided by population and outcome. Assertiveness training has been studied for decades, but the literature is uneven: some areas now have systematic reviews and meta-analysis, while others rely on small trials, older studies, or multicomponent interventions.
Social anxiety: the strongest recent synthesis
The most important recent update is a 2026 meta-analysis by Hede, Malouff, and Meynadier. It synthesized 12 randomized controlled trials, representing 13 independent samples and 503 participants, and found a medium overall effect of assertiveness training on social-anxiety outcomes: Hedges' g = 0.62, 95% CI [0.32, 0.92]. The authors found no evidence of publication bias using the methods they applied (Hede et al., 2026).
That result is meaningful, but its boundaries matter. The studies included clinical and nonclinical settings, educational samples, people selected for unassertiveness, social anxiety, schizophrenia, learning disability, and substance-use treatment. The pooled literature therefore does not represent one uniform Social Anxiety Disorder population. The authors also reported moderate heterogeneity, I² = 56.72%, indicating meaningful variation in effects across studies (Hede et al., 2026).
The meta-analysis rated overall certainty as moderate after downgrading for risk of bias and inconsistency. Several studies did not clearly report therapist training, use of a manual, or attrition; most outcomes were self-reported; only three studies supplied relevant follow-up data; and the review excluded comparisons with active treatments that substantially overlapped with assertiveness training. That design helps isolate an assertiveness-training effect against no-treatment or placebo controls, but it does not establish that assertiveness training is superior to standard CBT, exposure-based treatment, or another bona fide therapy (Hede et al., 2026).
The clean conclusion is that assertiveness training has promising and now meta-analytically supported effects on social-anxiety outcomes. It is not the same claim as saying that low assertiveness causes Social Anxiety Disorder, that everyone with social anxiety has a social-skills deficit, or that assertiveness training should replace established treatment for every person with the disorder.
A modern stand-alone internet CBT trial
Hagberg and colleagues randomized 210 adults to therapist-guided internet CBT for assertiveness, unguided self-help, or a wait-list control. The intervention lasted eight weeks. Compared with wait-list, estimated between-group effects on self-rated adaptive assertiveness were large, ranging from 0.95 to 1.73 across measures and active conditions; social-anxiety effects ranged from 0.67 to 0.93, and gains in assertiveness were maintained at one year (Hagberg et al., 2023).
The trial also shows why outcome specificity matters. It found no effect on generalized anxiety at post-treatment. The authors reported improved wellbeing and possible longer-term depression improvement, but those findings do not turn the program into a general treatment for every anxiety or depressive condition. The strongest interpretation is that a structured internet CBT program targeting assertiveness can change assertiveness and some related outcomes in adults motivated to work on this problem (Hagberg et al., 2023).
The guided and unguided versions produced similar results in this trial, which supports the feasibility of structured self-help for some participants. It does not show that professional support adds no value for everyone. Clinical complexity, risk, comorbidity, accessibility needs, treatment preference, and difficulty implementing skills in real relationships can all change what level of support is appropriate.
Healthcare and nursing: useful evidence, narrow context
Healthcare has generated a substantial modern literature because speaking up can affect team communication and patient safety. A 2017 systematic review included eight studies of assertiveness-communication training for healthcare professionals and students. Most targeted groups showed some degree of benefit, but the review emphasized the need for better evidence on sustained behavior change and patient-safety outcomes (Omura et al., 2017).
A 2023 systematic review of 14 assertiveness-education studies in nurses and nursing students found mixed results overall. Programs used classroom teaching, simulation, peer support, and hybrid formats. The review concluded that opportunities to practice assertive communication, including simulation and role-play, appeared useful for speaking-up skills, while calling for more observation of actual post-training behavior rather than relying mainly on intentions and self-report (Lee et al., 2023).
A separate 2023 systematic review and meta-analysis focused on speaking up about medical errors. Eleven studies with 1,299 participants were included in the systematic review and nine studies with 804 participants in the meta-analysis. Assertive-communication training improved speaking-up behavior versus control with a pooled standardized mean difference of 0.58, although attitudes and confidence varied more markedly (Chen et al., 2023).
These findings should not be generalized into the claim that any employee who feels unable to speak up has a personal assertiveness deficit. A 2025 nursing systematic review highlighted barriers, facilitators, staff relationships, training, and organizational context, underscoring that behavior occurs inside systems with hierarchy and power (Al-Hawaiti, Sharif, & Elsayes, 2025). A communication course can strengthen a skill; it cannot by itself remove retaliation risk, understaffing, punitive leadership, or unsafe organizational culture.
Clinical populations: encouraging studies, limited transfer
Assertiveness training has also been studied in psychiatric populations, but results should stay population-specific. In a randomized single-blind study of 74 inpatients with chronic schizophrenia, 12 sessions of group assertiveness training improved assertiveness, social-interaction anxiety, and satisfaction with interpersonal communication relative to supportive control, with some gains maintained at three months (Lee et al., 2013).
A separate study of 68 psychiatric patients with mixed diagnoses found improved assertiveness after four weeks of training, but self-esteem did not significantly improve and the social-anxiety reduction was not significant at one-month follow-up (Lin et al., 2008). These findings support the possibility of targeted benefit without justifying broad claims across diagnoses.
Research on social anxiety provides another lesson about treatment packages. In a randomized trial of 106 adults with Social Anxiety Disorder, Social Effectiveness Therapy combined social-skills training with exposure and produced better social-skill and general clinical-status outcomes than exposure alone on some measures, although the difference in diagnostic remission between the two active treatments was not statistically significant (Beidel et al., 2014). This supports the value of skills work for some people, while leaving the specific contribution of assertiveness distinct from the broader multicomponent package.
Multicomponent CBT studies cannot isolate assertiveness
A 2026 randomized trial of a three-day intensive group CBT program for Chinese college students with elevated social anxiety found sustained reductions in social-anxiety outcomes through six months. The program included psychoeducation, cognitive restructuring, behavioral experiments, and assertiveness training (Cui & Tang, 2026). Because the components were delivered together, the study supports the package, not a claim that assertiveness training alone caused the improvement.
The same caution applies to the 2024 college-student trial in Cairo. The intervention combined mindfulness, assertiveness, and problem-solving across eight 90-minute sessions and improved assertiveness while reducing stress, anxiety, and depression relative to control (ElBarazi et al., 2024). It is evidence for a multicomponent skills program, not a clean component trial of assertiveness by itself.
Which Outcomes Have the Best Support?
The evidence is most coherent for outcomes that are close to the training: assertiveness itself, specific communication behaviors, and speaking-up behavior. Social anxiety has stronger recent support than it did a few years ago because the 2026 meta-analysis pooled randomized trials and found a medium effect with moderate certainty (Hede et al., 2026).
Evidence for broader emotional outcomes is less settled. Individual trials sometimes report changes in stress, depression, wellbeing, or self-esteem, but null findings also occur and multicomponent interventions make attribution difficult. A person should not be told that assertiveness training is an evidence-equivalent substitute for condition-specific treatment simply because depression or anxiety can co-occur with unassertive behavior.
Relationship outcomes are similarly indirect. Clearer communication may help some relationships, but assertiveness does not guarantee intimacy, compatibility, fairness, repair, or reciprocal care. If one partner clearly expresses a need and the other disagrees, the assertive act can still have succeeded as communication. The relationship question—what the two people decide next—is a different outcome.
Assertiveness Training and Social Anxiety
Social anxiety is the clearest area where current evidence deserves attention. The 2026 meta-analysis included participants with and without a formal Social Anxiety Disorder diagnosis and found a pooled reduction in social-anxiety outcomes (Hede et al., 2026). That does not mean ordinary nervousness during disagreement is a disorder, and it does not mean every person with Social Anxiety Disorder needs assertiveness training.
Two pathways can overlap. One person may avoid speaking because fear of negative evaluation blocks behavior they already know how to perform. Another may have fewer practiced interpersonal skills because years of avoidance limited learning opportunities. A third may be socially anxious while already communicating competently. Assessment matters because exposure, cognitive work, social-skills practice, and assertiveness rehearsal target different parts of the problem.
If social anxiety is severe, persistent, and impairing, treatment decisions should be based on a clinical assessment rather than on a self-help label such as “I am not assertive enough.” Assertiveness work can be one useful component or, in some cases, a focused intervention; its relevance depends on the person's formulation and goals.
Assertiveness Training, People Pleasing, and Boundaries
Assertiveness training is often recommended for people pleasing because chronic accommodation can involve difficulty refusing requests, expressing preferences, disagreeing, or tolerating disapproval. That is a plausible skill connection, but “people pleasing” is not a psychiatric diagnosis and there is no universally validated people-pleasing treatment protocol. The relevant question is which specific behavior is creating difficulty.
If the problem is automatically saying yes and regretting it later, refusal practice may help. If the problem is fear of negative evaluation across many social situations, anxiety-focused work may matter. If the problem is an unclear limit about time, privacy, emotional involvement, or participation, understanding personal boundaries and practicing how to set boundaries may be more relevant. If the pattern is broad chronic self-suppression, see our evidence-informed guide to how to stop people pleasing.
Assertiveness and boundaries are connected but not interchangeable. A boundary concerns a limit or decision about one's participation, access, time, body, privacy, resources, or engagement. Assertiveness is one possible way to communicate a limit. A person can have a clear boundary and communicate it assertively, passively, aggressively, or strategically. Likewise, assertiveness includes many behaviors that are not boundaries, such as making a request, disagreeing, or giving feedback.
Saying no is a particularly common training target. Our guide to saying no without overexplaining examines refusal as an assertiveness skill while preserving context, obligations, power differences, and safety. Short wording is sometimes useful; it is not a universal moral rule.
Assertiveness Is Not Aggression
Assertiveness aims to make one's position available while preserving the other person's right to respond. Aggressive communication uses intimidation, contempt, humiliation, threats, coercion, or disregard for the other person's rights in pursuit of an outcome. The difference is not simply volume or grammatical form. A softly delivered threat can be coercive; a firm refusal can be assertive.
Training should therefore improve calibration rather than merely increase behavioral intensity. Someone who tends to withdraw may need practice becoming more direct. Someone who tends to escalate may need practice expressing the same need with less threat and more listening. The objective is flexible, proportionate communication, not maximum forcefulness.
The full skills layer—including clear requests, behavioral specificity, feedback, disagreement, repair, and negotiation—is covered in Assertive Communication: Skills, Examples, and How to Practice. This article keeps the focus on training methods and their evidence rather than duplicating that canonical intent.
Can Assertiveness Training Help at Work?
It can help with specific workplace behaviors: asking for clarification, negotiating priorities, raising a concern, declining work outside realistic capacity when there is room to do so, giving feedback, or speaking up about risk. Healthcare research provides the clearest structured evidence for speaking-up training, including a 2023 meta-analysis showing improved speaking-up behavior after assertive-communication training in nurses and nursing students (Chen et al., 2023).
Workplace behavior, however, is constrained by legitimate role expectations and power. A person may communicate clearly and still be required to perform a task within their job duties. A manager may disagree without being abusive. An employee may face real retaliation risk in a dysfunctional organization. Assertiveness training should not turn structural problems into an individual deficit story.
Nor should training substitute for jurisdiction-specific legal advice. Employment rights, protected leave, disability accommodations, whistleblower protections, harassment law, union agreements, and contractual duties differ across jurisdictions. A communication skill can support a conversation; it does not determine the person's legal rights or the employer's obligations.
When Assertiveness Training May Not Be Enough
Assertiveness training is best suited to situations where there is at least some realistic room for interpersonal choice and where practicing a communication behavior addresses the relevant problem. It becomes insufficient when the main obstacle is danger, coercive control, severe power imbalance, a condition requiring other treatment, or a structural constraint that individual communication cannot remove.
Unsafe or coercive relationships
If direct disagreement can trigger stalking, violence, forced isolation, financial restriction, sexual coercion, threats, destruction of property, immigration-related threats, or other retaliation, the task is not to produce a more elegant assertive sentence. Safety planning, confidential support, advocacy, healthcare, legal resources, or carefully timed exit planning may matter more. Strategic silence, delayed response, or temporary compliance can be protective behavior in unsafe contexts.
Difficulty asserting oneself does not cause another person's abuse. Stronger boundaries or better communication do not guarantee that a coercive person will stop. For a detailed distinction between self-protective limits and attempts to manage another person's behavior, see Boundaries vs Control.
Clinical problems that need condition-specific care
Assertiveness can be a treatment component without being the primary treatment. If someone has severe depression, panic, obsessive-compulsive symptoms, psychosis, trauma-related symptoms, eating-disorder symptoms, substance-related problems, or another clinically significant condition, the treatment plan should address that condition with appropriate evidence-based care. Assertiveness work can be added when the formulation shows a relevant interpersonal skill or avoidance target.
This distinction is visible in the research itself. Assertiveness has been embedded inside broader CBT and social-skills programs, including treatments for social anxiety, but improvement in a multicomponent trial cannot be credited to the assertiveness component alone (Beidel et al., 2014; Cui & Tang, 2026).
What Does a High-Quality Assertiveness Training Program Look Like?
A strong program begins with a behavioral assessment rather than a global judgment that the person is “too passive.” It identifies situations, goals, current responses, anticipated consequences, safety constraints, and what successful behavior would actually look like. The target might be making requests, refusing, expressing affection, receiving criticism, speaking in meetings, correcting an error, negotiating workload, or expressing disagreement.
It then teaches discrimination. Participants learn to distinguish assertive, passive, aggressive, passive-aggressive, and coercive responses as communication functions rather than as fixed personality types. Real interactions can combine elements, and one sentence does not diagnose a person. For the dedicated comparison of these communication patterns, see Passive vs Assertive vs Aggressive Communication: What Is the Difference?.
The program should include practice. Contemporary systematic reviews in nursing repeatedly point toward simulation, role-play, or other opportunities to enact the behavior rather than relying only on lecture (Lee et al., 2023; Omura et al., 2017). The 2026 social-anxiety meta-analysis likewise required included assertiveness interventions to contain role-playing and real-world practice assignments (Hede et al., 2026).
Feedback should be specific and iterative. Instead of saying “be more confident,” a trainer can note that the request did not identify a time frame, the refusal was followed by three contradictory concessions, or the delivery became accusatory when the other person hesitated. The participant then repeats the behavior with one change.
Good training also includes transfer. Homework or between-session practice tests the skill in daily life and identifies what changes when stakes, relationships, and power vary. A person who can refuse a low-stakes invitation may still need separate practice asking a supervisor for clarification or discussing a recurring issue with a partner.
Finally, a high-quality program measures the outcome it claims to change. If the goal is workplace speaking up, an increase in general confidence is not enough evidence. If the goal is social anxiety, the program should measure social-anxiety outcomes. If the goal is assertive behavior, self-report can be useful but behavioral observation or real-world indicators strengthen interpretation.
How Long Does Assertiveness Training Take?
There is no evidence-based universal number of sessions. In the 2026 social-anxiety meta-analysis, included programs ranged from four to 12 sessions. The number of sessions did not significantly moderate effect size, but the review contained too few studies to treat that null finding as proof that dose does not matter (Hede et al., 2026).
Contemporary trials also use different formats. The 2023 stand-alone internet CBT program ran for eight weeks (Hagberg et al., 2023). A 2013 schizophrenia trial used 12 sessions (Lee et al., 2013). The 2024 college program used eight 90-minute group sessions but combined several skills (ElBarazi et al., 2024). These differences reinforce that “assertiveness training” is a family of interventions rather than a fixed dose.
A sensible endpoint is functional rather than numerical: the person can perform the target behavior with enough flexibility across relevant situations, understands when directness is appropriate or unsafe, and can continue practice without needing the training setting for every interaction.
Does Online Assertiveness Training Work?
There is direct evidence that an online format can work for some adults. In the 2023 randomized trial, both guided and unguided internet CBT conditions improved adaptive assertiveness compared with wait-list, with similar effects across the two active formats and maintenance of assertiveness gains at one year (Hagberg et al., 2023).
That study is stronger evidence than a generic online course testimonial, but it does not validate every app, video series, workbook, or commercial seminar. Program content, adherence, practice, feedback, participant selection, outcome measurement, and clinical support vary widely. When evaluating an online program, ask what exact skills are trained, what evidence supports the protocol, whether outcomes have been studied, and what happens when a participant has significant mental-health or safety needs.
What About Culture?
Assertiveness is expressed through culturally shaped communication norms. Directness, eye contact, emotional expression, deference to age or authority, turn-taking, refusal style, privacy, and the meaning of disagreement vary across communities and settings. A training model should therefore distinguish the psychological function of assertiveness from one culture's preferred presentation.
A randomized study of 118 international students tested group assertiveness training in the context of acculturative stress and found some benefits for emotional adjustment, but the results belonged to a specific university population and should not be used as a universal cross-cultural template (Tavakoli et al., 2009). The 2026 social-anxiety meta-analysis did not find a significant Western-versus-non-Western region moderator, but the authors cautioned that the small number of studies limited power to detect moderators (Hede et al., 2026).
Culturally responsive training asks what the person is trying to accomplish, what social consequences are realistic, what communication forms are acceptable or effective in that context, and which adaptations preserve both self-expression and relational meaning. It does not equate greater directness with greater psychological health in every culture.
Limitations of the Assertiveness Training Evidence Base
The first limitation is heterogeneity. Programs labeled “assertiveness training” can include different combinations of behavioral rehearsal, cognitive restructuring, exposure, relaxation, psychoeducation, social-skills work, problem-solving, mindfulness, and communication protocols. When content differs, a pooled label can hide meaningful differences in mechanism and dose.
The second limitation is population concentration. Recent systematic reviews are heavily represented by nursing and healthcare research because speaking up is a high-priority safety behavior in those fields (Omura et al., 2017; Lee et al., 2023; Chen et al., 2023). Those findings are valuable but do not automatically generalize to romantic relationships, schools, corporate management, family conflict, or psychotherapy populations.
The third limitation is measurement. Many studies rely on self-reported assertiveness, intentions, confidence, or symptom scales. Self-report can detect meaningful change, but it is not the same as observing behavior during a difficult real-world interaction. Reviews have specifically called for more sustained behavioral and clinical-practice outcomes (Omura et al., 2017; Lee et al., 2023).
The fourth limitation is study quality and sample size. The 2026 meta-analysis found a medium effect on social anxiety but downgraded certainty because of risk-of-bias concerns and moderate unexplained heterogeneity; several included studies were small, and long-term follow-up was uncommon (Hede et al., 2026).
The fifth limitation is component confounding. When assertiveness training is embedded in CBT, DBT-derived skills, exposure, mindfulness, or problem-solving, a positive outcome validates the package more strongly than the assertiveness component. This is why multicomponent trials should be described as such (ElBarazi et al., 2024; Cui & Tang, 2026).
The sixth limitation is comparative evidence. The current literature is better at showing that assertiveness training can outperform no-treatment or some control conditions than at establishing how it compares head-to-head with other bona fide interventions for the same problem. The 2026 meta-analysis explicitly identified comparative trials and longer follow-up as research priorities (Hede et al., 2026).
How to Evaluate Assertiveness Training Claims
A credible claim names the outcome and population. “This program improved speaking-up behavior among nurses” is interpretable. “Assertiveness training fixes communication problems” is too broad. “An eight-week internet CBT program improved adaptive assertiveness in this adult sample” is evidence. “You can become fearless in eight weeks” is marketing.
Look for intervention detail. A meaningful program should say what participants actually do: assessment, modeling, rehearsal, cognitive work, feedback, real-world practice, or some other defined method. A course that consists mainly of slogans about confidence is not equivalent to the interventions tested in clinical research.
Look for the comparison condition and outcome measure. A pre-post improvement without a control group can reflect many influences. A randomized comparison is stronger, but even then the conclusion is limited to what was measured. An improvement in an assertiveness questionnaire is not proof that a program reduced depression, prevented abuse, improved promotion rates, or transformed relationships.
Be cautious with guarantees. No communication method can guarantee agreement, respect, safety, promotion, intimacy, or boundary compliance. Assertiveness changes what the speaker does. It does not create control over another person's choices.
Who Might Consider Assertiveness Training?
Assertiveness training may be worth considering when a person repeatedly has difficulty performing specific interpersonal behaviors they want to perform: asking for what they need, declining optional requests, expressing preferences, disagreeing, giving or receiving feedback, correcting misunderstandings, or speaking up in settings where direct communication is reasonably safe. For step-by-step everyday practice outside a formal training program, see How to Be More Assertive: Skills for Relationships, Family, and Work.
It may also be relevant when social anxiety and avoidance are tied to feared acts of self-expression. The 2026 meta-analysis provides moderate-certainty evidence that assertiveness training can reduce social-anxiety outcomes across a heterogeneous set of randomized trials (Hede et al., 2026). Clinical decisions still depend on severity, diagnosis, goals, available treatments, and whether assertiveness is actually part of the maintaining problem.
Training is less likely to solve a problem whose main cause lies elsewhere. If the barrier is an abusive partner, discriminatory workplace policy, impossible workload, severe depression, untreated psychosis, a contractual restriction, or lack of physical safety, treating the issue as an individual assertiveness deficit can misidentify the problem.
FAQ
Is assertiveness training a type of CBT?
Historically, assertiveness training grew from behavior therapy and is commonly integrated with cognitive-behavioral methods. Modern programs often combine behavioral rehearsal with cognitive work on predictions, beliefs, and avoidance. It can also be delivered as a stand-alone skills intervention or as part of social-skills, healthcare communication, or workplace training (Speed et al., 2018; Hagberg et al., 2023).
Does assertiveness training reduce social anxiety?
Current evidence says it can. A 2026 meta-analysis of 12 randomized trials with 503 participants found a medium pooled reduction in social-anxiety outcomes, g = 0.62, with moderate overall certainty (Hede et al., 2026). The evidence does not mean every person with social anxiety has an assertiveness deficit or that assertiveness training is superior to established therapies.
Can assertiveness training help depression or generalized anxiety?
Some studies report changes in broader emotional outcomes, but the evidence is less direct and often comes from multicomponent interventions. The 2023 stand-alone internet assertiveness trial did not find an effect on generalized anxiety at post-treatment, and broader symptom findings should not be generalized into a universal treatment claim (Hagberg et al., 2023). For a diagnosed condition, treatment selection should follow the evidence for that condition.
What are the main techniques in assertiveness training?
Common techniques include assessment of problem situations, psychoeducation, modeling, behavioral rehearsal, role-play, feedback, cognitive work on inhibiting beliefs, graded real-world practice, and training in requests, refusals, disagreement, feedback, and nonverbal communication. The exact mix varies by program (ABCT; Lee et al., 2023).
How many sessions does assertiveness training take?
There is no universal dose. The 2026 social-anxiety meta-analysis included programs ranging from four to 12 sessions, while a modern internet CBT trial used eight weeks (Hede et al., 2026; Hagberg et al., 2023). Duration should be interpreted in relation to the program, target, and participant rather than as a guaranteed timeline.
Is assertiveness the same as confidence?
No. Confidence is a broader subjective sense of capability or certainty. Assertiveness is a pattern of behavior in interpersonal situations. Someone can act assertively while feeling nervous, and someone can feel confident while communicating aggressively or dismissively. Training focuses on what a person does, not on requiring a particular internal feeling first.
Is assertiveness training the same as setting boundaries?
No. Boundaries concern limits and decisions about one's own participation, access, time, privacy, body, resources, and relational engagement. Assertiveness is one way to communicate a boundary and also applies to many other interpersonal behaviors. See What Are Personal Boundaries? and How to Set Boundaries for the boundary-specific intent.
Can assertiveness training stop manipulation or abuse?
No. Assertiveness may clarify a person's position, but it cannot make another person behave safely or respectfully. In coercive or abusive contexts, direct confrontation may increase risk. Responsibility for manipulation, coercive control, or abuse belongs to the person using those behaviors, not to the target's level of assertiveness.
Can I learn assertiveness online?
Yes, some people can. A randomized trial found that both guided and unguided internet CBT focused on assertiveness improved adaptive assertiveness relative to wait-list, with gains maintained at one year (Hagberg et al., 2023). That result applies to the studied program and sample; it is not validation of every online course.
Is being passive always unhealthy?
No. Passivity can reflect habit or fear in some situations, but withholding a response, delaying a conversation, accommodating temporarily, or staying quiet can also be strategic and adaptive when power is unequal or safety is uncertain. Assertiveness training should expand behavioral choice, not impose constant confrontation.
The Bottom Line
Assertiveness training works best as a specific skills intervention with specific outcomes. The clearest current evidence supports improvements in assertive behavior and related communication, and a 2026 meta-analysis provides moderate-certainty evidence for a medium reduction in social-anxiety outcomes across randomized trials (Hede et al., 2026). Healthcare reviews also support structured practice for speaking-up behavior while showing that effects depend on setting and outcome (Lee et al., 2023; Chen et al., 2023).
The limitations matter as much as the positive findings. Programs are heterogeneous, many studies use self-report, long-term follow-up is limited, and multicomponent interventions make causal attribution difficult. Assertiveness training can teach a person to communicate more clearly and flexibly. It cannot guarantee another person's agreement, repair unsafe relationships, erase organizational power, or substitute automatically for treatment of a clinical disorder.
The most defensible goal is behavioral freedom: having more than one response available, choosing directness when it serves the situation, negotiating when negotiation is appropriate, refusing when refusal is warranted, and recognizing when safety or structural conditions call for a different strategy.