Within human psychology, the Jenkins Activity Survey (JAS) is one of the most widely used methods of assessing Type A behavior.
[2] The Jenkins Activity Survey was developed in an attempt to duplicate the clinical assessment of the Type A behavior pattern by employing an objective psychometric procedure.
Individuals displaying a Type A behavior pattern are characterized by extremes of competitiveness, striving for achievement and personal recognition, aggressiveness, haste, impatience, explosiveness and loudness in speech, characteristics which the Jenkins Activity Survey attempts to measure.
A popular sub-form of the Jenkins Activity Survey is form T, created to analyze Type A and Type B behavior in students as opposed to the original survey created with questions pertaining to the workforce.
[3] Testing the reliability of this form is fundamental because although the changes made from the original survey were minor they could still have large effects in the overall scores and findings of the research.