Abstract
The Adolescent Assertiveness Assessment Scale (AAA-S; cataloged within contemporary psychometric assessment databases under reference record AISCSC; de Lima et al., 2024) is a specialized 20-item self-report psychological instrument constructed to systematically evaluate assertive social skills, interpersonal boundary negotiation, and emotional communication among young people aged 12 to 18. Grounded in the multifaceted behavioral and social-cognitive framework of interpersonal competence formulated by assertiveness theorists, most notably the Brazilian social skills typology developed by Del Prette and Del Prette (2017), the instrument captures an adolescent’s capacity to affirm personal rights, express both positive and negative affect, challenge authority or peer consensus respectfully, and navigate peer conflict without resorting to either passive submission or hostile aggression. The scale was systematically derived from an initial pool of 80 situation-based items generated via qualitative focus groups with adolescents and expert panels, subsequently refined to a concise 20-item architecture optimized for educational, developmental, and clinical research settings. Each item is rated along a 4-point Likert scale ranging from 1 (never or rarely) to 4 (always/almost always). In initial psychometric validation, the AAA-S demonstrated exceptional content validity, yielding a total Content Validity Coefficient (CVCt) of .97 and individual item coefficients (CVCi) uniformly exceeding .80, alongside an 86.4% semantic comprehensibility index among secondary school students. By addressing the critical developmental transition characterized by emerging autonomy, peer pressure, and academic renegotiation, the AAA-S provides psychometricians, school psychologists, and adolescent researchers with an ecologically grounded and developmentally sensitive assessment tool.
Keywords
Adolescent Assertiveness, Social Skills Assessment, Interpersonal Competence, Adolescent Development, Content Validity, Semantic Validity, Peer Relations, Emotional Expression, Boundary Setting, Psychometrics
Authors
The Adolescent Assertiveness Assessment Scale (AAA-S) was conceptualized, operationalized, and psychometrically validated by a collaborative research team specializing in developmental psychometrics, educational psychology, and social interaction analysis:
- Sara Luize Pereira de Lima — Department of Psychology, Universidade Federal da Paraíba (UFPB), João Pessoa, Brazil; Instituto de Ciências Sociais, Universidade de Lisboa, Lisbon, Portugal. Email: [email protected].
- Shirley de Souza Silva Simeão — Department of Psychology, Universidade Federal da Paraíba (UFPB), João Pessoa, Brazil.
- Washington Allysson Dantas Silva — Department of Psychology, Universidade Federal da Paraíba (UFPB), João Pessoa, Brazil.
- Melyssa Kellyane Cavalcanti Galdino — Department of Psychology, Universidade Federal da Paraíba (UFPB), João Pessoa, Brazil.
Correspondence regarding the instrument’s development, licensing, and adaptation protocols should be directed to Sara Luize Pereira de Lima at [email protected].
Purpose
Adolescence represents an intense period of neurodevelopmental, social, and psychological transition. During this phase, individuals progressively shift their primary relational orientation from parental dependency toward peer networks and broader secondary social institutions, such as educational centers, recreational groups, and early employment contexts. Within this transitional crucible, the mastery of social skills—and specifically assertive communication—becomes a critical determinant of socioemotional adjustment, self-esteem, academic engagement, and psychological resilience. Inadequate assertiveness during adolescence is frequently implicated in a spectrum of adverse outcomes, including victimization by bullying, relational peer rejection, internalizing psychopathologies such as social anxiety and major depression, or oppositional conduct characterized by reactive aggression. Despite the evident importance of this construct, existing psychometric inventories for adolescents often rely on direct translations of adult measures, failing to mirror the ecologically valid, daily social dilemmas and developmental pressures experienced by modern adolescents.
The primary purpose of the Adolescent Assertiveness Assessment Scale (AAA-S) is to provide an empirically grounded, ecologically valid, and developmentally calibrated measure designed explicitly for youth aged 12 to 18. Its development responds directly to the need for an instrument whose scenarios, linguistic register, and behavioral parameters reflect authentic adolescent interactions. Rather than presenting abstract, decontextualized self-descriptions (e.g., “I am confident”), the AAA-S introduces concrete situational vignettes involving interactions with peers, romantic interests, parents, and authority figures like teachers. This contextual grounding ensures that respondents evaluate their actual behavioral tendencies across realistic social junctures.
In clinical and school psychology settings, the AAA-S fulfills critical diagnostic and intervention-planning functions. It enables school counselors and clinical psychologists to identify specific behavioral deficits across distinct subclasses of assertiveness—such as difficulty voicing dissent in peer groups, inability to make pedagogical requests to teachers, reluctance to establish romantic boundaries, or deficits in acknowledging personal mistakes and issuing apologies. Consequently, the scale serves as an objective baseline assessment and an outcome evaluation metric for universal and indicated Social Skills Training (SST) programs, cognitive-behavioral group therapies, and anti-bullying school curricula.
From an empirical research perspective, the scale offers investigators a rigorous instrument to explore how assertiveness intersects with adjacent psychological constructs. Researchers can deploy the AAA-S to study the mechanisms linking interpersonal competence to academic stress, peer conformity pressures, digital communication behaviors, and adolescent identity development. By differentiating passive non-assertiveness from coercive aggression, the tool equips developmental scientists with the granular metric necessary to dissect the subtle dynamics of youth social functioning.
Psychological Construct
The overarching psychological construct measured by the AAA-S is Adolescent Assertiveness. Within contemporary psychological science, assertiveness is conceptualized not merely as a stable personality trait, but as a complex behavioral repertoire of social communication skills characterized by the ability to defend one’s legitimate personal rights, express thoughts, beliefs, feelings, and needs directly, honestly, and appropriately, while upholding reciprocal respect for the rights, boundaries, and perspectives of others. Assertiveness occupies the optimal behavioral nexus between two maladaptive extremes: passivity (submissive self-abnegation, behavioral inhibition, and failure to express dissent or needs) and aggression (coercive, hostile, contemptuous, or domineering imposition of one’s will onto others).
In the AAA-S framework, adolescent assertiveness is operationalized across multiple complementary subclasses of interpersonal performance, specifically adapted to youth micro-systems:
1. Self-Affirmation and Expression of Dissent in Peer Contexts
This dimension encompasses an adolescent’s capacity to maintain personal integrity, vocalize differing opinions, and resist coercive group conformity when peer consensus contradicts personal values or preferences. Adolescents encounter pervasive peer pressure regarding social norms, leisure activities, and aesthetic tastes. Items reflecting this dimension measure whether an adolescent can openly voice disagreement when peers express opposing views (Item 1), articulate counter-proposals during group decision-making (Item 3), and defend divergent personal tastes without hostility or defensiveness (Item 8: “When someone says my taste in music is not good, I explain that we have different musical preferences”).
2. Consumer Rights and Everyday Self-Advocacy
Assertiveness extends beyond peer relationships into transactional social environments where adolescents must exercise autonomy and advocate for fair treatment. This behavioral domain involves initiating transactional requests and rectifying commercial dissatisfaction. It is exemplified by Item 2 (“If I buy a new piece of clothing and find out at home that I do not like it, I come back to change it”), which assesses the adolescent’s willingness to overcome social hesitation or anticipated confrontation in commercial transactions.
3. Navigating Hierarchical and Academic Authority Relationships
Interactions between adolescents and academic authority figures (such as secondary school educators) present unique power asymmetries. Assertive youth must navigate these asymmetries by effectively seeking academic clarification and presenting group needs without exhibiting insolence or debilitating intimidation. Items such as Item 4 (evaluating communicative ease when speaking to teachers), Item 5 (acting as an elected spokesperson representing peer requests to educators), and Item 18 (proactively seeking pedagogical re-explanation when a concept is not understood) operationalize this critical educational assertiveness subclass.
4. Renegotiation of Parental Autonomy and Conflict Management
A core developmental imperative of adolescence is the renegotiation of parental boundaries and individuation. Assertiveness in the familial subsystem requires adolescents to express disagreement, debate expectations, and navigate parental critique constructively rather than resorting to impulsive emotional outbursts. Item 6 (“I can argue when my parents ask me to do something I do not want to do”) evaluates reasoned verbal negotiation, whereas Item 7 (“I often get angry when my parents criticize my performance at school”) monitors the tendency toward reactive emotional dysregulation in response to parental feedback.
5. Intimate, Romantic, and Affective Expression
Emerging romantic attachments and deep interpersonal affinities require specialized assertive competencies, including the disclosure of vulnerability and the termination of unsatisfying or unhealthy relationships. Item 9 captures the expressive difficulty associated with disclosing positive romantic or affiliative feelings to a classmate. Conversely, Item 13 (“When I am unhappy in a relationship, I can take the initiative to end the relationship”) captures emotional agency and boundary enforcement in romantic or close interpersonal contexts.
6. Repair Behaviors, Accountability, and Restorative Assertiveness
True interpersonal assertiveness entails recognizing interpersonal harm, accepting responsibility for errors, and actively initiating relational repair. Items such as Item 14 (“If I hurt a colleague, I apologize”) and reverse-scored Item 15 (“Even when I know I am in the wrong, I avoid admitting my mistake”) directly assess the adolescent’s willingness to engage in ethical vulnerability and restorative accountability.
7. Setting Interpersonal Boundaries and Refusing Unreasonable Demands
Assertive self-protection requires an adolescent to establish boundaries when others infringe upon personal resources, focus, or well-being. Item 17 (reluctantly yielding personal class notes at the expense of one’s own academic efficiency) evaluates the inability to refuse burdensome requests, while Item 20 captures the assertive defense of collective and personal working conditions by requesting quiet from disruptive classmates.
Theoretical Framework
The construction and validation of the Adolescent Assertiveness Assessment Scale is firmly anchored in the Theoretical Model of Social Skills and Interpersonal Competence formulated by Brazilian psychologists Zilda Aparecida Pereira Del Prette and Almir Del Prette (2017). This framework integrates principles from behavioral psychology, social cognitive theory (Bandura, 1986), and developmental systems theory, providing a robust architecture for conceptualizing social performance across the lifespan.
According to Del Prette and Del Prette, a fundamental theoretical distinction must be maintained between social skills and social competence:
- Social Skills: Refer to descriptive, topographically distinct classes of verbal and non-verbal behaviors present in an individual’s behavioral repertoire that can be performed in response to specific situational demands (e.g., refusing requests, apologizing, asking questions, establishing eye contact).
- Social Competence: Represents an evaluative, contextual construct. It refers to the instrumental, social, and ethical efficacy of the exhibited social skills within a designated sociocultural context, producing reinforcing immediate and long-term outcomes while preserving positive self-evaluation and interpersonal relationships.
Within this theoretical model, assertiveness is conceptualized as a premier subclass of social competence. Del Prette and Del Prette posit that assertive behavior balances the satisfaction of immediate individual goals (instrumental efficacy) with the preservation or enhancement of relational quality (relational efficacy) and psychological well-being (ethical/self-evaluative efficacy). Assertiveness is not an immutable, generalized trait, but a highly context-dependent behavioral pattern governed by stimulus control, expected consequences, social self-efficacy, and cultural display rules.
The developmental extension of this model to adolescence incorporates ecological systems theory (Bronfenbrenner, 1979). In adolescent development, social skills function within interacting micro-systems: the family system, the peer clique, the romantic dyad, the classroom environment, and broader community settings. Because the cognitive maturation of the adolescent prefrontal cortex occurs concurrently with heightened socioemotional sensitivity to peer evaluation (Steinberg, 2008), the costs and benefits of assertive actions fluctuate dramatically across these systems. For instance, expressing disagreement to a parent involves distinct cognitive-emotional negotiations compared to voicing disagreement within a conformist peer group or addressing a teacher. The AAA-S was deliberately engineered to reflect these differentiated micro-system demands, ensuring that assertiveness is evaluated as a multifaceted behavioral repertoire rather than a monolithic unidimensional entity.
Validity
The psychometric development of the Adolescent Assertiveness Assessment Scale adhered to rigorous international testing standards, emphasizing qualitative and quantitative phases of instrument design as outlined by the American Educational Research Association (AERA), American Psychological Association (APA), and National Council on Measurement in Education (NCME).
Content Validity
The content validation process began with an exploratory qualitative phase employing the focus group technique with adolescents aged 12 to 15. These focus groups allowed researchers to extract naturalistic linguistic formulations, identify typical social stressors, and map recurring conflict situations experienced by modern youth. Combining focus group data with the theoretical subclasses defined by Del Prette and Del Prette (2017), an initial comprehensive pool of 80 potential items was generated.
This 80-item prototype was subsequently subjected to formal expert judgment. A multidisciplinary panel of psychological and psychometric experts evaluated each item regarding its theoretical clarity, semantic suitability, and construct relevance using quantified criteria. Content validity was mathematically determined through the Content Validity Coefficient (CVC) methodology developed by Hernandez-Nieto (2002):
- Individual Content Validity Coefficient (CVCi): All retained items achieved individual validity coefficients exceeding .80, indicating high judge agreement on construct congruence and clarity.
- Total Content Validity Coefficient (CVCt): The global content validity coefficient for the finalized 20-item instrument reached an outstanding
CVCt = .97. - Inter-Rater Consensus: The overall average agreement across expert evaluations ranged between .92 and .99, confirming that the scale exhaustively and accurately samples the adolescent assertiveness behavioral domain while eliminating extraneous construct-irrelevant variance.
Semantic Validity and Comprehensibility
Following expert review, the semantic validity of the instrument was tested directly within the target demographic. The scale was administered in an interactive pilot study to Brazilian adolescents aged 12 to 15 to verify whether the wording, syntax, and scenarios were readily understood without ambiguity or cognitive burden. The quantitative results demonstrated:
- Comprehensibility Index: The target youth population achieved an overall semantic comprehension rate of 86.4% across all items, verifying that the scale is linguistically accessible across diverse secondary school cohorts.
- Developmental Sensitivity: A statistically significant moderate positive correlation was observed between chronological age and comprehension level (
r = 0.41, p = 0.05). This empirical finding aligns with cognitive developmental theory, which notes that linguistic maturity, metacognitive monitoring, and social perspective-taking advance considerably across the 12-to-18 developmental span.
Reliability
As documented in the foundational psychometric publication by de Lima et al. (2024), the initial development phase prioritized structural refinement, semantic comprehensibility, and content validity (achieving a high CVCt of .97). Because this primary empirical investigation was dedicated to establishing content and semantic integrity through expert consensus and adolescent cognitive debriefing panels, large-scale normative reliability coefficients (such as classical Cronbach’s alpha, McDonald’s omega ($\omega$), and longitudinal test-retest intraclass correlation coefficients [ICC]) were reserved for ongoing large-sample cross-sectional field trials.
Contemporary psychometric theory dictates that high content validity (CVCt = .97) provides a foundational prerequisite for internal consistency, as it ensures minimal construct underrepresentation and low item contamination. Nonetheless, independent psychometric researchers administering the AAA-S in applied settings are advised to calculate and report sample-specific internal consistency statistics (McDonald’s $\omega$ and Cronbach’s $lpha$) across composite and subscale scores, pending the publication of comprehensive national normative data.
Factor Analysis
In the primary publication of the AAA-S (de Lima et al., 2024), formal exploratory factor analysis (EFA) and confirmatory factor analysis (CFA) were identified as the vital next empirical milestones following the initial content and semantic validation phases. The derivation of the 20 finalized items from the initial 80-item pool was driven by rigorous theoretical matching against Del Prette and Del Prette’s established social skills subclasses and empirical CVC cutoffs (retaining items with CVCi > .80).
Based on the underlying theoretical architecture, structural equation modeling and factor analytic investigations of the AAA-S are hypothesized to yield either a hierarchical higher-order model (a general Assertiveness factor subsuming domain-specific facets) or a correlated multi-factor model encompassing:
- Peer Expression and Dissent (Items 1, 3, 8, 16)
- Authority and Academic Communication (Items 4, 5, 18, 20)
- Relational Integrity, Repair, and Accountability (Items 10, 11, 12, 14, 15)
- Boundary Maintenance and Negotiation (Items 2, 6, 7, 9, 13, 17, 19)
Future studies deploying large normative adolescent samples ($N > 500$) are anticipated to report standardized fit metrics, including Comparative Fit Index (CFI $ge$ .95), Tucker-Lewis Index (TLI $ge$ .95), Root Mean Square Error of Approximation (RMSEA $le$ .06), and Standardized Root Mean Square Residual (SRMR $le$ .08), validating the dimensional configuration across diverse sociodemographic and gender strata.
Instrument / Measurement Tool
The operational specifications of the Adolescent Assertiveness Assessment Scale are summarized below:
- Instrument Name: Adolescent Assertiveness Assessment Scale (AAA-S)
- Archival Database Reference: AISCSC / Adolescent Assertiveness Assessment Scale (de Lima et al., 2024)
- Construct Assessed: Adolescent Assertiveness (Interpersonal Social Skills and Boundary Negotiation)
- Instrument Type: Self-report behavioral rating scale
- Target Population: Adolescents aged 12 to 18 years (school age through adolescence)
- Administration Format: Self-administered; compatible with electronic/digital survey platforms (tablets, computers, web forms) and traditional paper-and-pencil formats
- Administration Duration: Approximately 8 to 12 minutes
- Item Count: 20 items
- Response Format: 4-point Likert scale:
- 1 = Never or rarely (Nunca ou raramente)
- 2 = Once in a while / Sometimes (Às vezes)
- 3 = Fairly often / Frequently (Frequentemente)
- 4 = Always / Almost always (Sempre ou quase sempre)
- Scoring Guidelines:
- Directly Scored Items: Items representing adaptive assertive behaviors (e.g., Items 1, 2, 3, 5, 6, 8, 13, 14, 16, 18, 20) are scored directly from 1 to 4.
- Reverse-Scored Items: Items reflecting passive avoidance, relational aggression, or non-assertive deficits (e.g., Items 4, 7, 9, 10, 11, 12, 15, 17, 19) must be reverse-coded (1 = 4, 2 = 3, 3 = 2, 4 = 1) prior to calculating aggregate composite scores.
- Composite Score: Total scores range from 20 to 80, with higher cumulative scores indicating superior assertive repertoire, adaptive boundary setting, and advanced social competence.
Permissions & Fee and Test Year
The Adolescent Assertiveness Assessment Scale was formally published in 2024. In adherence to open science and contemporary psychometric dissemination principles, the scale was published in the peer-reviewed journal Psicologia: Teoria e Pesquisa under an open-access Creative Commons Attribution License (CC-BY 4.0). Under this licensing framework, the AAA-S is available free of monetary charge for non-commercial academic, educational, and clinical research purposes.
Investigators, psychologists, and educators may utilize, administer, and adapt the scale without paying royalty fees, provided appropriate formal attribution is granted to the original authors (de Lima et al., 2024). Clinicians or commercial entities seeking to incorporate the instrument into proprietary commercial diagnostic software, paid mobile health applications, or institutional assessment batteries should secure formal permission by contacting the corresponding author, Sara Luize Pereira de Lima, at [email protected].
References
- Bandura, A. (1986). Social foundations of thought and action: A social cognitive theory. Prentice-Hall.
- Bronfenbrenner, U. (1979). The ecology of human development: Experiments by nature and design. Harvard University Press.
- de Lima, S. L. P., Simeão, S. d. S. S., Silva, W. A. D., & Galdino, M. K. C. (2024). Adolescent Assertiveness Assessment Scale: Evidence of content validity. Psicologia: Teoria e Pesquisa, 40, Article e40403. https://doi.org/10.1590/0102.3772e40403.en
- Del Prette, A., & Del Prette, Z. A. P. (2017). Competência social e habilidades sociais: Manual teórico-prático [Social competence and social skills: A theoretical-practical manual]. Editora Vozes.
- Hernandez-Nieto, R. A. (2002). Contributions to statistical analysis: The CVC index and coefficient of variation. Universidad de Los Andes.
- Steinberg, L. (2008). A social neuroscience perspective on adolescent risk-taking. Developmental Review, 28(1), 78–106. https://doi.org/10.1016/j.dr.2007.08.002