Stability and factor structure of the Jackson Personality Inventory--Revised.

The Jackson Personality Inventory--Revised comprises 15 bipolar scales and five cluster scores concerning an individual's interpersonal patterns of interaction, cognitive styles, and value orientation. Recent reviews of this revised version raise questions about test-retest stability as well as the factor structure on which cluster scores are based. 74 men and 33 women (29-63 years of age, M = 42.3) completed the inventory while participating in a continuing education program. Of these 45 participated in a second session 13 wk. later. Test-retest correlations are significant, with 12 of the 15 scales having correlations > or = .75. Intercorrelations among all subscales indicate that the Jackson subscales for the most part remain distinct from each other ranging from .01 to .59. A Principal Components Analysis with a varimax rotation yielded three factors that parallel the NEO big five, i.e., Openness, Neuroticism, and Extroversion and replicated previous factor structure found for both versions of the Jackson inventory. The fourth and fifth factors here were labeled Trustworthy and Organization; however, the composition of these factors across several studies appears to be unstable, suggesting optimal certainty when interpreting the clusters of subscales associated only with Openness, Neuroticism, and Extroversion. Further research may help clarify the instability associated with the other factors of this inventory.

Oral contraceptive use: implications for cognitive and emotional functioning.

This study investigated the role of oral contraception use versus nonuse as a moderator variable differentially influencing cognitive-emotional processes. Seventy-six healthy women (29 users and 47 nonusers; 18 to 48 years old), completed the State-Trait Anger Expression Inventory, the Clinical Analysis Questionnaire, the Rotter Scale of locus of control, the Daily Hassles Scale, and a Repertory Grid. A subsample (N = 33) also volunteered for a blood draw. Hormonal levels of progesterone and estrogen mostly were unrelated to cognitive and emotional measures, and contraindicated the "chemical suppression" proposition. Alternatively, when cognitive-emotional functioning was examined separately for users and nonusers, cognitive factors including the appraisal of stress, loci of control, and self-integration were implicated with specific patterns of negative affect and much more so for users than for nonusers. For the most part, oral contraceptive use versus nonuse seemed to influence the saliency rather than the nature of cognitive-emotional patterns. Discussion focused on oral contraceptive use as a moderator variable and the need for longitudinal research to clarify the evolving, biopsychosocial influence of hormonal regulatory treatment.