The conceptual commonality between impulsiveness as a personality trait and as an ego development stage

Abstract

This research was an attempt to demonstrate the conceptual commonality between impulsiveness as a trait and as an ego development stage through correlations on measures of both. An Eysenckian measure of broad trait impulsiveness (ImpB) consisting of four impulsiveness subscales, the Eysenck Personality Questionnaire (EPQ) and the Washington University Sentence Completion Test (WUSCT) of ego development were administered to 62 male students and 101 female students distributed across three different educational levels (Junior High, Senior High and College). Significant correlations between ImpB and the WUSCT (-0.23 for the males and -0.31 for the females) supported the hypothesized commonality. Correlations between the WUSCT and the four impulsiveness subscales indicated that Narrow Impulsiveness and Risk-taking were more indicative of ego development than Non-planning or Liveliness. Age trends in the patterns of correlations demonstrated that the commonality between trait impulsiveness and ego development was limited to the early stages of ego development. Sex differences on a number of trait measures and on the WUSCT indicated that males lag behind females in ego development during adolescence. It was hypothesized that the aspect of impulsiveness most indicative of ego development was an unsocialized aspect which might be captured by Eysenck's dimension of psychoticism (P). Correlations between P and WUSCT supported this hypothesis (-0.49 for the males and -0.29 for the females). P apparently has more concept commonality with ego development than has trait impulsiveness. Age trends and sex differences in impulsiveness, psychoticism, and aggressiveness were discussed. It was argued that these personality characteristics would be better understood if explored within a developmental framework such as ego development.