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Assessing the type A behaviour pattern with the Jenkins Activity Survey
The British Journal of Medical Psychology
|June 1, 1987
Summary
The Jenkins Activity Survey (JAS) shows low reliability for measuring Type A behavior. Recommendations include revising the scoring and components of the JAS to improve its validity.
Area of Science:
- Psychological assessment
- Behavioral science
Background:
- The Jenkins Activity Survey (JAS) is a widely used measure of Type A behavior.
- Controversy exists regarding the reliability and usefulness of the JAS.
Purpose of the Study:
- To evaluate the internal consistency and test-retest reliability of the Jenkins Activity Survey (JAS).
- To assess the validity of the weighted scoring scheme and specific components of the JAS.
Main Methods:
- Statistical analysis of internal consistency (Cronbach's alpha) for the JAS Type A scale and its factors (Speed and Impatience, Job Involvement, Hard-driving Competitiveness).
- Evaluation of test-retest reliability for the JAS Type A scale.
- Examination of the weighted scoring scheme.
Main Results:
- Low internal consistency scores were found for the JAS Type A scale and its components (S, J, H).
- The JAS Type A scale demonstrated low test-retest reliability.
- The weighted scoring scheme of the JAS was found to be questionable.
Conclusions:
- The current structure and scoring of the JAS raise concerns about its reliability and validity as a measure of Type A behavior.
- Recommendations are proposed to enhance the JAS, including eliminating the weighted scoring, removing specific factors (S, J, H), and revising individual items.
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