Biomedical subjects

P L Hewitt

Publications and source records attributed to P L Hewitt.

22 records · Page 2Linked to original sources

PubMed1990

The discrimination of patient-generated and randomly generated MMPIs.

A discriminant analysis was applied to 34 randomly generated and 34 patient-generated Minnesota Multiphasic Personality Inventory (MMPI) profiles. The discriminant was able to differentiate the two sets at greater than 97% accuracy. A cross validation based on derived unstandardized canonical discriminant functions was carried out on an additional 10 random and 10 patient MMPIs. It attained 95% accuracy. Eight experienced clinical psychologists attained less than 70% accuracy--six of the eight did no better than chance. The importance of including actuarial data in validity judgments was discussed.

Adult↗

PubMed1990

Clinical depression and attributional complexity.

Recent research on attributional complexity with college student samples has indicated that mild and moderate depression are associated with increased attributional complexity but more severe depression may be related to decreased attributional complexity. The present study examined levels of attributional complexity in clinically depressed patients and normal controls. The results confirmed that severe depression is associated with reduced attributional complexity. The results are discussed in terms of the need for a multidimensional model of attribution and depression that incorporates individual differences in variables such as attributional complexity.

Adult↗

PubMed1989

Validation of a measure of perfectionism.

This article describes perfectionism, or the holding of and striving for unrealistically high standards, and presents two studies undertaken to investigate the convergent, discriminant, and predictive validity of the Perfectionism Scale (PS; Burns, 1980). College students in the first study completed the PS, several other measures of high standards, and measures of constructs that, conceptually, are differentially related to perfectionism. Correlational analyses indicated that the Perfectionism Scale has convergent and discriminant validity and seems to measure self-oriented perfectionism. The second study attempted to determine the predictive validity of the PS by testing a vulnerability model of subclinical depression outlined in Hewitt and Dyck (1986). PS scores were used to predict depressed mood changes in female college students following failure on important and unimportant tasks. As expected, the results indicated that perfectionism interacted with failure on important versus unimportant tasks to produce dysphoric mood. Evidence for the predictive validity of the PS was thus shown. Several directions for future research are discussed.

Adult↗

PubMedDate not supplied

The operating room--perceptions of a change in working environment.

The questionnaire surveyed OR staff on themes such as design, security, and workload. Surgical nurses had greater expectations for their roles and functions in the new facility. Levels of physical comfort improved; however, mood was not affected positively.

Attitude of Health Personnel↗