Biomedical subjects

R E Vestewig

Publications and source records attributed to R E Vestewig.

5 recordsLinked to original sources

PubMed1977

Extraversion and risk preference in portfolio theory.

One hundred seventy-eight male and female undergraduates completed the Eysenck Personality Inventory and indicated their risk preference assessed under the assumptions of Coombs' portfolio theory. Extraverts preferred higher risk significantly more than did introverts, and also showed significantly greater risk preference change as expected value increased. It was suggested that a theoretically defensible selection of both personality variables and a risk assessment model may lead to greater personality-risk predictability.

Choice Behavior↗

PubMed1977

On the validity of graphoanalysis: a rejoinder to Crumbaugh's Reply.

Crumbaugh (1977) reexamines an earlier study showing no validity for graphoanalysis (Vestewig, Santee, & Moss, 1976), and from considerations of the methodology and from reanalysis of the data findings some validity for the system. This rejoinder points out conceptual and statistical errors in his reply, and reaffirms the conclusion of the earlier study.

Comment↗

PubMed1977

Multidimensional scaling of the TAT and the measurement of achievement motivation.

Subjects rated all pairs of eight TAT cards and ten Rorschach cards for similarity. They were also scored for n-Ach using imagery scoring on stories to TAT cards. Two similarity dimensions were found for the TAT stimuli, identified as number of persons and degree of strong affect. Those high and low on need for achievement for both sexes differed significantly on degree of salience afforded to each dimension, those high weighting the affect dimension more, and those low the person dimension more. Dimensions of the Rorschach found by Wainer et al. (1976) were replicated, but did not discriminate individuals on need for achievement. The results are discussed in terms of the interpretation of the dimensions, the possible relationship of affect to achievement motivation, and the possible practical implications for the use and measurement properties of projective tests.

Achievement↗

PubMed1976

The relationship of extraversion and neuroticism to two measures of assertive behavior.

One hundred forty-four college students completed the Eysenck Personality Inventory and the Rathus Assertiveness Schedule (RAS) and wrote their behavioral reactions to five scenarios in which an assertive behavior was an appropriate response. Extraversion showed a significant positive correlation with the RAS in both males and females. Neuroticism was negatively correlated with RAS in both sexes. Extraversion and RAS correlated significantly with rated Assertiveness in the scenarios only in the male sample. The RAS predicted variance in Assertiveness beyond that predicted by Extraversion. Overall low correlations of the measures with rated Assertiveness were discussed in terms of the low internal consistency reliability of that scale.

Aggression↗

PubMed1976

Validity and student acceptance of a graphoanalytic approach to personality.

Forty-eight handwriting specimens were rated by 6 handwriting analysts on 16 personality variables. Correlations of analysts ratings and personality inventory scores were nonsignificant. Analysis of variance showed that there were significant differences between the analysts on their judgments of 10 of the 15 traits. Subjects were also given the reports prepared for them and a bogus report and asked to rate the analysts' assessments for accuracy. Subjects were able to choose 2 of the 15 traits with significant accuracy on the real report when considering individual traits. There were no significant differences between the accuracy ratings on the real and bogus reports on overall rating. It was concluded that the analysts could not accurately predict personality from handwriting.

Journal Article↗