Normative data for eight neuropsychological tests based on a Danish sample

Normative neuropsychological data have been provided using a sample of 101 persons aged 20 to 54 years. Eighty-seven of the subjects were recruited among patients who had undergone minor surgery, and 14 subjects were volunteers from the staff at the hospital laundry. The measures consisted of seven subjects from the WAIS-R, the trail-making test, symbol digit modalities test, auditory-verbal learning test, story recall test, visual gestalt test, recurring figures test, verbal fluency, and Purdue pegboard test. These measures were selected because of suitability in regard to time taken for testing each subject and their sensitivity to subtle changes in neuropsychological functioning. The sample was arbitrarily divided into three age groups, and for each of the three samples, mean, standard deviation, and range were calculated for each test. The results of the Information and Vocabulary subtests from the WAIS-R, education, and social status were applied as independent variables in linear regression analyses where each of the neuropsychological tests, in turn, was the dependent variable. For the oldest age group, age in addition was used as an independent variable. Significant linear relationships, which accounted for an optimal part of the variance, were selected for clinical application.     

Performance under simulated offshore climate conditions

An experimental study was set up simulating the environmental conditions and work load among drillers and maintenance personnel offshore. Thirty-six male subjects participated in the experimental study involving 3h exposures with dry gloves, wet gloves or without gloves. The subjects were working on tasks involving heavy and light muscle work, dexterity and cognitive tasks. Body and skin temperatures and heart rate variability were continuously monitored. Neuropsychological and endocrinological parameters were intermittently monitored. The data from the work performance tasks showed that motor functions, both gross and fine, were impaired when working with wet and, especially, without gloves. Working without gloves also affected mental work tasks. The neuropsychological and physiological data confirmed the work task studies: working with wet or without gloves led to increased tremor and impaired finger dexterity. Furthermore, reasoning was consistently impaired throughout the exposures compared with working with dry gloves. The heart-rate variability data and the endocrine results also showed a significant central nervous stress reaction for the two hypothermic conditions compared with the dry glove condition. Especially for drilling further north these data should imply that both health and performance may be detrimentally affected during working under such conditions with insufficient thermal protection.     

EXPLAINING U.S. COURTS OF APPEALS DECISIONS INVOLVING PERFORMANCE APPRAISAL: ACCURACY, FAIRNESS, AND VALIDATION

Accuracy and due process perspectives were used to extend policy-capturing research concerning employment discrimination case law. Two-hundred ninety-five usable U.S. Circuit Court decisions concerning performance appraisal were located from 1980–1995. In both chi-square and multivariate LOGIT analyses, decisions were explained by: use of job analysis, provision of written instructions, employee review of results, and agreement among raters. Contrary to hypotheses, appraisal frequency and type (traits vs. behaviors or results) were unrelated to judicial decision. Rater training approached significance in chi-square analysis. Of other variables checked (e.g., type of discrimination claim, statutory basis, class action status, year of decision, circuit court, type of organization, purpose of appraisal, evaluator race and sex), only circuit court approached significance. We conclude that issues relevant to fairness and due process were most salient to judicial decisions; issues pertaining to accuracy were important, yet validation was virtually ignored in this sample of cases.     

JOB ATTRIBUTE PREFERENCES AND WORK COMMITMENT OF MEN AND WOMEN IN THE UNITED STATES

The extent of assumed sex differences in preferences for work attributes is explored utilizing data from five representative national samples. The results indicated only minimal differences in preferred job attributes between males and females. Both sexes identified meaningfulness of the work as the most important job attribute, and rank ordered the other four attributes studied in the following sequence: promotion, income, security, and hours. Factors such as education, occupational prestige, age and one's commitment to continue working were more important than sex of the respondent as predictors of job attribute preferences. However, these status variables did not affect the relationship of sex and job attribute preferences. Furthermore, these factors had approximately the same relative predictive value for both males and females. Nevertheless, these statistically significant predictors explained a small proportion of the variance in job attribute preferences. Implications for research and practice are discussed.     

Marital Interactions of Male versus Female Alcoholics

This study assessed the interactions of 131 alcoholic and nonalcoholic couples as they engaged in discussions of personally relevant problems. For 50 couples, the husband was alcoholic; for 15 couples, the wife was alcoholic; for 16 couples, both spouses were alcoholics; and for 50 couples, neither spouse was alcoholic. Observations were conducted during sessions when alcohol was consumed and in nondrinking sessions. Female alcoholic couples (with nonalcoholic spouses) demonstrated high negativity in the “no-drink” session, which was normalized in the drink session, suggesting an adaptive function to alcohol use. Concordant couples (both members were alcoholic) also demonstrated high negativity in the no-drink session, but exhibited increased negativity in the drink session, suggesting that concordance has a maladaptive impact on marital interaction. All alcoholic groups demonstrated greater negativity and lower positivity and congeniality in their marital interactions compared to nonalcoholic couples. Couples with male alcoholics were the least divergent from normal control couples. Unique female patterns in alcoholism are discussed in terms of adaptive and reinforcing patterns and spousal influences.     

Effects of colour on perceived depth: Review of experiments and evalutaion of theories

A selective and evaluative review of experiments and theories dealing with the effect of colour on perceived depth is presented. It has long been known that equidistant objects that differ in colour may appear as if they are located at different distances. The present paper emphasizes the theoretical importance of distinguishing between monocular and binocular effects. There is at present no completely satisfactory explanation of the monocular effect but chromatic aberration seems to be a critical factor. The binocular effect (colour stereoscopy) is most probably due to disparity between differently coloured images on the retinae. The stereoscopic theories of Einthoven (1885) and Vos (1960, 1963, 1966) are discussed; available evidence favours the latter.     

Experience-related factors as determinants of leisure satisfaction

Two studies were conducted to investigate the effects on leisure satisfaction of factors related and unrelated to a leisure experience. The first study showed that subjects' sex and educational level were not significantly related to leisure satisfaction which was measured without regard to any particular explicit leisure experience. However, when the measures of leisure satisfaction were taken in close temporal proximity to a leisure experience (the second study), two significant interaction effects were obtained. The one involving sex and outcome indicated that the experience of a basketball game itself, regardless of its outcome, increased males' leisure satisfaction, whereas females' leisure satisfaction was outcome-dependent. The interaction of outcome and competitiveness revealed that leisure satisfaction was higher for the competitive than recreational players before the game, with this difference enlarging after winning and especially after losing. Theoretical and practical implications of the results were discussed.