The Aggressive Scale

Abstract

The Aggressive Scale (TAS), developed by Peggy Orpinas and Robert Frankowski, is a widely recognized self-report measure designed for the quantitative assessment of the frequency and intensity of aggressive behavior among young adolescents. It provides mental health and educational professionals with a reliable tool for screening individuals, evaluating the risk of future aggression, and planning targeted behavioral interventions. The measure is structured around five distinct subscales that capture various forms of aggression, including physical and verbal hostility, alongside related affective states such as anger and impulsivity. It is crucial to understand that the TAS is intended solely as an assessment tool for behavioral tendencies and should not be utilized for formal clinical diagnosis or labeling.

Keywords

Aggression, Antisocial Behavior, Delinquency, Violence Prevention, Youth Assessment, Behavioral Intervention, Impulsivity, Anger, Self-Report Measure, School Psychology

Authors

Peggy Orpinas, Robert Frankowski

Purpose

The primary function of The Aggressive Scale is multifaceted, centered on the reliable identification and precise measurement of aggressive behavioral patterns. It serves as an effective screening instrument for researchers and mental health professionals, establishing the current level of aggression an individual has exhibited over a specific, recent time frame—typically the preceding seven days.

Beyond basic quantification, the scale fulfills critical roles in both preventive and clinical environments. It is instrumental in assessing an individual’s risk profile concerning potential future aggressive or violent acts, thereby guiding the necessity, scope, and structure of therapeutic interventions. Furthermore, its quantifiable scoring system makes the TAS highly valuable for evaluating the efficacy of ongoing treatments or prevention programs designed specifically to mitigate maladaptive aggressive behavior.

Construct

The Aggressive Scale is designed to measure the psychological construct encompassing both overt and covert aggression, along with the related emotional and behavioral precursors. The instrument effectively captures the frequency and intensity of aggressive acts across several critical dimensions, allowing for a distinction between direct physical actions and underlying affective states. This measurement is organized into five empirically derived scales, offering a comprehensive and nuanced profile of the respondent’s aggressive tendencies:

• Physical Aggression: Measures direct acts intended to cause physical harm or threat, such as hitting, kicking, or pushing.
• Verbal Aggression: Assesses aggressive communication through language, including behaviors like name-calling, swearing, and verbal threats.
• Indirect Aggression: Captures relational or covert aggression, which typically involves social manipulation, such as spreading rumors or engaging in gossip.
• Anger: Measures the intensity, duration, and persistence of hostile emotional states experienced by the individual.
• Impulsivity: Evaluates the tendency toward spontaneous and often poorly considered actions, which frequently serve as precursors to aggressive outbursts.

Validity

While precise empirical validation coefficients (e.g., convergent, divergent, or criterion validity) are detailed primarily within the original 2001 publication, the scale exhibits strong content validity. This is supported by its comprehensive inclusion of items that target the established, multi-domain nature of aggressive behavior: physical, verbal, and indirect acts. This scope ensures that the instrument measures the full spectrum of behaviors associated with youth aggression and antisocial conduct.

The extensive application of the TAS in subsequent academic research focusing on delinquency and violence prevention further confirms its utility and substantial face validity within the field of behavioral psychometrics. Researchers frequently rely on the TAS to reliably differentiate between youths exhibiting high versus low levels of problematic behavior, confirming its practical ability to discriminate between clinically relevant groups.

Reliability

As a foundational instrument for youth violence assessment, The Aggressive Scale has undergone rigorous standard psychometric evaluation. Although specific Cronbach’s Alpha coefficients are best referenced in the primary source material, the design of the measure strongly suggests high internal consistency, particularly when assessing its separate subscales (e.g., Physical Aggression, Verbal Aggression).

A key structural feature contributing to its reliability is the use of a short, retrospective time frame (the last seven days). This methodology enhances its test-retest reliability over brief intervals, making the TAS particularly suitable for accurately tracking immediate behavioral changes following focused interventions.

Factor Analysis

The underlying structure of The Aggressive Scale was established through rigorous empirical factor analysis. This analysis confirmed the identification of the five primary, distinguishable components measured by the instrument. This analytic approach validated the hypothesis that aggressive behavior is not a monolithic construct but rather comprises several correlated factors: physical, verbal, and indirect aggression, alongside the associated affective states of anger and impulsivity.

This confirmed multi-dimensional structure is crucial for clinical application, enabling researchers and clinicians to achieve a more granular and sophisticated understanding of a subject’s aggressive tendencies. By isolating specific areas of behavioral concern, the scale allows practitioners to move beyond a simplistic total score, facilitating the development of highly targeted and effective treatment protocols.

Instrument

Test Type: Self-report measure for behavioral assessment

Format: Structured questionnaire utilizing a frequency rating scale (0 to 6+ times)

Language Available: English (Original; translations may exist in subsequent research)

Population Group: Youth and adolescents

Age Group: Young adolescents (typically middle school age)

Population Details: Primarily utilized in school settings and clinical environments focused on assessing violence-related attitudes and behaviors among youths.

Test Methodology: Respondents are asked to rate the number of times they engaged in specific aggressive behaviors during the preceding 7 days. Scoring involves summing all responses, resulting in a total score that ranges from 0 to 66 points. Missing data (if three or fewer items are left blank) are managed by replacing the missing values with the respondent’s calculated average score.

Keywords

Personal Attitudes and Beliefs, Delinquency and Antisocial Behavior, Behavioral Health, Youth Violence, School Psychology, Screening Tool, Psychometrics

Authors

Author ORCID Identifier: Not specified in source content

Affiliation Email addresses: Not specified in source content

Correspondence Address: Not specified in source content

Permissions & Fee and Test Year

The Aggressive Scale was formally published in 2001. Specific details regarding current permissions or fees required for commercial utilization should be directed to the primary author, Peggy Orpinas, or the publisher of the Journal of Early Adolescence. The instrument is widely cited and actively used in public health and research contexts, evidenced by its inclusion in a CDC compendium of assessment tools.

The instrument is documented on page 168 of the publication, “Measuring Violence-Related Attitudes, Behaviors, and Influences Among Youths: A Compendium of Assessment Tools.” The original PDF of this compendium can be downloaded here: http://www.cdc.gov/violenceprevention/pdf/YV_Compendium.pdf

Reference’s

Orpinas P, Frankowski R. The aggression scale: a self-report measure of aggressive behavior for young adolescents. Journal of Early Adolescence 2001;21(1):51-68.

The full article detailing the scale’s development and psychometrics is available online at: http://mypages.valdosta.edu/mwhatley/7670/articles/aggression/aggression3.pdf

Items of the The Aggressive Scale

IMPORTANT: The following scale items must be preserved in their original language and must not be changed in any way.

Please answer the following questions thinking of what actually happened to you during the last 7 days.

1. I teased students to make them angry.
2. I got angry very easily with someone.
3. I fought back when someone hit me first.
4. I said things about other kids to make other students laugh.
5. I encouraged other students to fight.
6. I pushed or shoved other students.
7. I was angry most of the day.
8. I got into a physical fight because I was angry.
9. I slapped or kicked someone.
10. I called other students bad names.
11. I threatened to hurt or to hit someone.