Modified Aggression Scale (MAS)

Modified Aggression Scale (MAS)

Modified Aggression Scale (MAS)

The issue of aggressive conduct is one that has the potential to have adverse effects not just on individuals but also on society as a whole. A psychological evaluation instrument called the Modified Aggression Scale (MAS) was devised to examine aggressive behavior in teenagers. We will present an overview of the MAS in this post, which will include its background history, description, and psychometric features.

Background History:

The Aggression Scale was created by Arnold Buss and Mark Perry in 1992, and it was modified by Barry A. Farber and coworkers to create the Modified Aggression Scale in 2003. The Aggression Quotient (AQ) was developed to evaluate aggressive behavior in adults; however, it lacked components that could be used with adolescents. As a result, we revised the AQ to incorporate certain questions that are more relevant to teenagers, and this resulted in the Modified Aggression Scale.


The Modified Aggression Scale is a self-reporting measure that consists of 22 questions that evaluate anger, hostility, physical aggressiveness, and verbal aggression. Using a Likert scale ranging from “never” to “often,” participants are asked to assess how frequently they participate in certain actions or experience particular moods. Some examples of things that may be found on the Modified Aggression Scale are  “I hit or kick someone when I get mad” and “I feel like hurting someone when they make me angry.”

Psychometric Properties

The Modified Aggression Scale (MAS) is a self-report measure designed to assess aggressive behavior in adolescents. Psychometric properties are important indicators of the quality of a psychological assessment tool. Here, we will discuss the psychometric properties of the MAS:


Reliability refers to the consistency and stability of the scores obtained from a measure. The MAS has been found to be a reliable measure of aggressive behavior in adolescents. For example, one study reported that the internal consistency of the MAS was high, with a Cronbach’s alpha coefficient of .91. Another study found that the test-retest reliability over a 6-month period was good, with a correlation coefficient of .80.


Validity refers to the degree to which a measure accurately assesses what it is intended to measure. The MAS has been found to have good validity as a measure of aggressive behavior in adolescents. For example, several studies have reported positive correlations between the MAS and other measures of aggression and delinquency, indicating that the MAS is measuring what it is supposed to be measuring. Additionally, the MAS has been found to be sensitive to changes in aggressive behavior over time.

Administration, Scoring and Interpretation


The MAS is a self-report measure that can be administered individually or in a group setting. Participants are asked to rate how often they engage in specific behaviors or experience specific feelings on a 5-point Likert scale ranging from “never” to “always.” The MAS consists of 22 items that assess physical aggression, verbal aggression, anger, and hostility.


To score the Modified Aggression Measure, simply add up the scores for each item. The total score ranges from 22 to 110, with higher scores indicating more frequent engagement in aggressive behaviors and experiences of anger and hostility.


The interpretation of the Modified Aggression Measure scores depends on the research question or clinical context. However, generally speaking, higher scores on the Modified Aggression Measure indicate more frequent engagement in aggressive behaviors and experiences of anger and hostility. It’s important to note that the MAS is not a diagnostic tool and should only be used in conjunction with other assessment methods and clinical judgment.

In terms of clinical interpretation, if a participant scores high on the MAS, it may be an indication of underlying issues related to aggression or emotional regulation. Therefore, further assessment and evaluation may be warranted to determine appropriate interventions or treatment.


The Modified Aggression Measure (MAS) is an accurate and trustworthy instrument for assessing aggressive behavior in teenagers. It is a variant of the Aggression Questionnaire (AQ) that has been designed to add questions that are unique to this demographic in order to measure aggression. The MAS is made up of 22 different items that measure anger, hostility, physical violence, and verbal aggressiveness respectively. Research investigations have provided conclusive evidence about its psychometric qualities, including reliability, validity, and construct validity.

The Modified Aggression Measure (MAS) is a tool that may be used by researchers and practitioners to examine the prevalence of aggressive behavior in adolescents, as well as the correlates of such conduct, and to create treatments to address this issue. Therefore, it shouldn’t be used as a diagnostic tool at all; rather, it should only be used in combination with other evaluation techniques and with clinical judgment.

The Modified Aggression Measure (MAS) is an essential instrument that may aid to the development of effective interventions and therapies for adolescents who exhibit aggressive behavior. It was developed to better understand aggressive behavior in adolescents. Because of how straightforward its administration and scoring are, it is a useful tool that may be used in clinical and research contexts.


Psychological Measurement Database
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