Perfectionism, ego defense styles, and depression: a comparison of self-reports versus informant ratings

The present study examined the associations among perfectionism, defense styles, and depression in an Israeli community sample of young adults. This study involved a comparison of self-reports and informant ratings on all measures. A community sample of 210 pairs of same-sex best friends from Israel completed the Multidimensional Perfectionism Scale, the Defense Styles Questionnaire - 40, and a depression measure. Analyses confirmed that socially prescribed perfectionism is associated with depression, not only in terms of self-reports but also in terms of informant ratings. In addition, informant ratings revealed a link between other-oriented perfectionism and depression. Both self-reports and informant ratings also indicated that socially prescribed perfectionism is associated with immature defense styles and neurotic defense styles. Further simultaneous Structural Equation Modeling (SEM) analyses of self-reports and informant ratings showed that maladaptive defense styles mediate the link between socially prescribed perfectionism and depression. The practical and theoretical implications of these findings are discussed.     

Genetic and environmental contributions to general cognitive ability through the first 16 years of life

The genetic and environmental contributions to the development of general cognitive ability throughout the first 16 years of life were examined using sibling data from the Colorado Adoption Project. Correlations were analyzed along with structural equation models to characterize the genetic and environmental influences on longitudinal stability and instability. Intraclass correlations reflected both considerable genetic influence at each age and modest shared environmental influence within and across ages. Modeling results suggested that genetic factors mediated phenotypic stability throughout this entire period, whereas most age-to-age instability appeared to be due to nonshared environmental influences.     

Not all executive functions are related to intelligence

Accumulating evidence suggests that executive functions (EFs) are related to intelligence, despite neuropsychological results initially considered evidence of no such relation. However, findings that EFs are not unitary raise the issue of how intelligence relates to different EFs. This study examined the relations of fluid and crystallized intelligence and Wechsler Adult Intelligence Scale IQ to three separable EFs--inhibiting prepotent responses (inhibiting), shifting mental sets (shifting), and updating working memory (updating)--in young adults. Updating was highly correlated with the intelligence measures, but inhibiting and shifting were not. Furthermore, in structural equation models controlling for the inter-EF correlations, updating remained strongly related to intelligence, but the relations of inhibiting and shifting to intelligence were small and not significant. The results indicate that intelligence measures differentially relate to these three EFs, suggesting that current intelligence measures do not equally assess a wide range of executive control abilities likely required for many "intelligent" behaviors.     

Perfectionism in relation to attributions for success or failure

The present study examined the association between dimensions of perfectionism and attributions for success and failure. A sample of 124 students (40 males, 84 females) completed the Multidimensional Perfectionism Scale (MPS) and the Multidimensional Multiattributional Causation Scale (MMCS). The MPS consists of three subscales measuring self-oriented perfectionism, other-oriented perfectionism, and socially pre-scribed perfectionism. The MMCS measures internal attributions (i.e., ability, effort) and external attributions (i.e., luck, contextual factors) for positive and negative hypo-thetical outcomes in the achievement and affiliation domains. The main finding of this study was that socially prescribed perfectionism was associated with a general ten-dency to attribute outcomes to external causes. This external attribution pattern was obtained for successes and failures in both the achievement and interpersonal spheres. Overall, the main results suggest that socially prescribed perfectionism is associated with perceptions of learned helplessness. The implications of these findings are dis-cussed.     

Observers' reaction to touchers

20 men and 20 women were shown nine photographs in which two people were interacting. The first photograph shown showed a male and a female engaged in a nontouching interaction. The remaining eight photographs showed a touching interaction. Subjects rated their affective reaction to each of the touching interactions relative to their reaction to the first (nontouch) interaction. In the latter 8 photographs, the person facing the camera was either male or female, the person with back to camera was either male or female, and the touch shown was either a hand touch or a hug. All touching interactions were rated more positively than the standard (nontouch interactions). Male and female subjects tended to show identical reactions to the photographs. More positive reactions were shown to cross-sex hugging than to same-sex hugging and interactions showing hand touch.     

Genetic architecture of olfactory discriminative avoidance conditioning in Drosophila melanogaster

Recent claims to have demonstrated associative learning ability in Drosophila melanogaster raise questions about the adaptive significance of behavioral modifiability of this species. In a strain survey and a 9 X 9 half diallel cross study of olfactory discriminative avoidance conditioning, a low narrow heritability and strong directional dominance or heterosis controlling nonrandom phenotypic variation were found. Furthermore, the predicted inbreeding depression and asymmetrical response to bidirectional genetic selection were both observed. The genetic architecture revealed in these experiments is consistent with a close association between this conditioning phenotype and evolutionary fitness. Predictions from this interpretation to the nature of new mutations have been confirmed, and a possible role for conditioning in courtship behavior has been identified.     

Self-esteem,need for approval,and reactions to personal evaluations

In accordance with theoretical predictions concerning the reactions of high and low self-esteem individuals, Ss with low self-esteem scores showed an increase in liking for a positive evaluator of self and a decrease in liking for a negative evaluator of self. Ss with high self-esteem scores and low Marlowe-Crowne scores did not show a significant change in liking for either a positive or negative evaluator of self. Ss with high self-esteem scores and high Marlowe-Crowne scores showed a pattern of reaction similar to that of low self-esteem Ss. It was suggested that a sizable percentage of high self-esteem scorers should be reclassified as low self-esteem. This subgroup seems to obtain high scores on a self-esteem inventory by presenting themselves in an overly favorable as opposed to honest manner (the defining characteristic of a high Marlowe-Crowne scorer) but shows behavior patterns similar to low self-esteem individuals.     

The Perceived Stress Scale: Factor structure and relation to depression symptoms in a psychiatric sample

The present study sought to examine the factor structure and psychometric properties of the Perceived Stress Scale (PSS) when administered to psychiatric patients. We also examined predictive validity of the PSS by assessing the association between the Perceived Stress Scale and the Beck Depression Inventory. A heterogeneous sample of 96 psychiatric patients (48 men, 48 women) completed the Perceived Stress Scale (PSS) and the Beck Depression Inventory. Factor analysis of the PSS established that the scale consisted of two factors. The first factor was comprised primarily of items reflecting adaptational symptoms. In contrast, the second factor consisted of items reflecting coping ability. Both factors had an adequate degree of internal consistency. Finally, a series of regression analyses predicting depression found that both factors accounted for unique variance in depression scores in women, but only the first factor accounted for unique variance in men. It is concluded that the PSS is a multidimensional and internally consistent measure of perceived stress.This research was supported by Grant 410-91-1690 from the social sciences and Humanities Research Council of Canada as well as by grants from the Research and Program Evaluation Committee Brockville Psychiatric Hospital.