A meta-analysis of ratee race effects in performance ratings.

Conducted a meta-analysis of how the race of the ratee affects performance ratings by examining 74 studies with a total sample of 17,159 ratees for White raters and 14 studies with 2,428 ratees for Black raters. The 5 moderators examined were the study setting, rater training, type of rating, rating purpose, and the racial composition of the work group. Results show that the corrected mean correlations between ratee race and ratings for White and Black raters were .183 and –.220, with 95% confidence intervals that excluded zero for both rater groups. Substantial moderating effects were found for study setting and for the saliency of Blacks in the sample. Race effects were more likely in field settings when Blacks composed a small percentage of the work force. Both Black and White raters gave significantly higher ratings to members of their own race. It is suggested that future research should focus on understanding the process underlying race effects. References for the studies included are appended. (47 ref) (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

Flexible and compressed workweek schedules: A meta-analysis of their effects on work-related criteria.

Meta-analytic techniques were used to estimate the effects of flexible and compressed workweek schedules on several work-related criteria (productivity/performance, job satisfaction, absenteeism, and satisfaction with work schedule). In general, the effects of both schedules were positive. However, the effects of both flextime and compressed workweek schedules were different across the outcome criteria (e.g., compressed workweek schedules did not significantly affect absenteeism). Thus, the level of positive impact associated with either schedule is dependent on the outcome criterion under consideration. Further, several variables were found to be moderators of flexible work schedules. For example, highly flexible flextime programs were less effective in comparison to less flexible programs, and the positive benefits of flextime schedules were found to diminish over time. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Correlates of subjective health in older adults: A meta-analysis.

Age-associated changes of subjective health and associations of subjective health with physical health, functional health, and mental health were meta-analyzed in older adults (mean age > 60 yrs). An age-associated decline of subjective health, which was stronger in old-old samples than in young-old samples, was found. Subjective health was correlated with the indicators of objective health, but the association with physical health was stronger than with functional health. Correlations of subjective health with physical health and functional health were lower in the old-old than in the young-old samples, whereas associations of subjective health with mental health were stronger in older samples. Furthermore, the size of the association between subjective and objective health varied by the method of assessment of objective health, showing highest associations with symptom checklists and results of medical examinations due to strict protocols. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Relationships between subjective ratings and objective measures of performance in speechreading sentences

Ninety-six participants with normal hearing and 63 with severe-to-profound hearing impairment viewed 100 CID Sentences (Davis & Silverman, 1970) and 100 B-E Sentences (Bernstein & Eberhardt, 1986b). Objective measures included words correct, phonemes correct, and visual-phonetic distance between the stimulus and response. Subjective ratings were made on a 7-point confidence scale. Magnitude of validity coefficients ranged from .34 to .76 across materials, measures, and groups. Participants with hearing impairment had higher levels of objective performance, higher subjective ratings, and higher validity coefficients, although there were large individual differences. Regression analyses revealed that subjective ratings are predictable from stimulus length, response length, and objective performance. The ability of speechreaders to make valid performance evaluations was interpreted in terms of contemporary word recognition models.     

Vroom's expectancy models and work-related criteria: A meta-analysis.

This meta-analysis integrates the correlations of 77 studies on V. H. Vroom's (1964) original expectancy models and work-related criteria. Correlations referring to predictions with the models and the single components—valence, instrumentality, and expectancy—were included in relation to 5 types of criterion variables: performance, effort, intention, preference, and choice. Within-subjects correlations and between-subjects correlations were included separately. Overall, the average correlations were somewhat lower than reported in previous narrative reviews. In certain categories, moderators pertaining to the measurement of the concepts were analyzed with a hierarchical linear model, but these moderators did not explain heterogeneity. The results show a differentiated overview: the use of the correlational material for the validity of expectancy theory is discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Examination of race and sex effects on performance ratings.

The effects of rater source, rater and ratee race, rater and ratee sex, and job type were investigated on ratings collected for 8,642 first-term Army enlisted personnel. Ratings were made on 10 behaviorally based dimensions developed for evaluating all first-term soldiers. Results of between-Ss analyses similar to those conducted in past research revealed significant main effects and interactions for sex, race, rater source, and job type, but the variance accounted for by these effects was minimal. Repeated measures analyses were also performed, with each ratee evaluated by one Black and one White rater for the race effects analyses and one female and one male rater for the sex effects analyses. These analyses, which unconfounded rater bias and actual performance differences, yielded results similar to those obtained with the between-Ss design. Implications of the findings are discussed. ? (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Aging and dual-task performance: A meta-analysis.

The relations between dual-task effects and aging were examined through a meta-analysis of 33 studies (with 48 independent participant groups) using latency as the dependent measure and 30 studies (with 40 independent participant groups) focusing on accuracy. Brinley plots and state traces were derived, and a model to explicate different types of complexity (additive and multiplicative) was developed. The effects of dual-task processing on latency were additive, and this additive cost was larger in older adults than in younger adults and larger than predicted from general slowing. This cost was small and independent of task complexity. The effects of dual-task processing on logit-transformed accuracy were likewise additive, but no specific age deficit was associated with this dual-task cost. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Self-efficacy and work-related performance: A meta-analysis.

This meta-analysis (114 studies, k?=?157, N?=?21,616) examined the relationship between self-efficacy and work-related performance. Results of the primary meta-analysis indicated a significant weighted average correlation between self-efficacy and work-related performance, G(r±)?=?.38, and a significant within-group heterogeneity of individual correlations. To account for this variation, the authors conducted a 2-level theory-driven moderator analysis by partitioning the k sample of correlations first according to the level of task complexity (low, medium, and high), and then into 2 classes according to the type of study setting (simulated-lab vs. actual-field). New directions for future theory development and research are suggested, and practical implications of the findings are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

A meta-analysis of subjective well-being interventions among elders.

This meta-analysis demonstrated that interventions have a significant (p?M?=?1.12), psychoeducational (M?=?0.70), and social activity (M?=?0.66) treatments were significantly (p??0 days), the median value was 0.07. For effect sizes extracted from studies with both an immediate and a delayed posttest, the mean decrease over a 30-day period was 1.02. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Contrast effects in spontaneous evaluations: A psychophysical account.

In the affective-priming paradigm, target stimuli are preceded by evaluatively polarized prime stimuli and then are to be classified as either good or bad as fast as possible. The typical and robust finding is assimilation: Primes facilitate the processing of evaluatively consistent targets relative to evaluatively inconsistent targets. Nevertheless, contrast effects have repeatedly been observed. The authors propose a new psychophysical account of normal (assimilative) and reversed (contrastive) priming effects and test new predictions derived from it in 5 studies: In Studies 1 and 2, the authors' account is shown to provide a better explanation of contrastive effects in a priming paradigm with two primes than the traditional attentional account does. Furthermore, as predicted by the new account, contrast effects emerge at an intermediate stimulus-onset asynchrony (SOA, Study 3) and even with short SOAs when target onset takes participants by surprise (Study 4). Finally, the use of extremely valenced primes triggers corrective efforts (Study 5) as predicted. Implications for priming measures of evaluative associations are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Task-based performance appraisal for blue-collar jobs: Evaluation of race and sex effects.

Court standards for job analysis were used to develop a task-based performance appraisal instrument for use with multiple blue-collar jobs in a small plastics plant. The instrument consisted of 10 performance categories (i.e., general reasoning, written communications) that were rated in terms of importance to the job and performance. Race and sex effects in performance appraisal scores and overall performance rankings of 150 employees (of whom 62 were Black and 88 were female) in 3 jobs were analyzed with separate factorial analyses of covariance. Neither race nor sex effects were significant with the performance appraisal data. There was a significant race difference with the overall ranking data, although it accounted for only 2% of the variance. In a 2nd study, a similar instrument was used to analyze race and sex differences in performance appraisal for 233 employees (of whom 31 were female, 50 were Black, and 30 were Hispanic) in 3 job groups of a large petroleum refinery. Neither race nor sex effects were significant. Findings support the use of the task-based approach to performance appraisal. (14 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Gender differences in mathematics performance: A meta-analysis.

Performed a meta-analysis of 100 studies (published 1963–1988) of gender differences in mathematics performance. They yielded 254 independent effect sizes, representing the testing of 3,175,188 Ss. Averaged overall effect sizes based on samples of the general population indicated that females outperformed males by only a negligible amount. An examination of age trends indicated that girls showed a slight superiority in computation in elementary school and middle school. There were no gender differences in problem solving in elementary or middle school; differences favoring men emerged in high school and college. Gender differences were smallest and actually favored females in samples of the general population, grew larger with increasingly selective samples, and were largest for highly selected samples and samples of highly precocious persons. The magnitude of the gender difference has declined over the years. Gender differences in mathematics performance are small. Nonetheless, the lower performance of women in problem solving that is evident in high school requires attention. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Job satisfaction and job performance: A meta-analysis.

Coded 9 variables in a meta-analysis of 74 empirical studies of job satisfaction–job performance. Aggregated studies had an S sample size of 12,192 and 217 satisfaction–performance correlations. Findings show that (1) the best estimate of the true population correlation between satisfaction and performance was relatively low (.17); (2) much of the variability in results obtained in previously research was due to the use of small sample sizes, while unreliable measurement of the satisfaction and performance constructs has contributed relatively little to this observed variability in correlations; and (3) the 9 variables coded (composite vs unidimensional criteria, longitudinal vs cross-sectional measurement of performance relative to satisfaction, the nature of the performance measure, self-reports vs other sources, use of specific performance measures, subjectivity or objectivity of measures, specific-facet satisfaction vs global satisfaction, well-documented vs researcher-developed measurement, and white-collar vs blue-collar) were only modestly related to the magnitude of the satisfaction–performance correlation. (3 p ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Information sharing and team performance: A meta-analysis.

Information sharing is a central process through which team members collectively utilize their available informational resources. The authors used meta-analysis to synthesize extant research on team information sharing. Meta-analytic results from 72 independent studies (total groups = 4,795; total N = 17,279) demonstrate the importance of information sharing to team performance, cohesion, decision satisfaction, and knowledge integration. Although moderators were identified, information sharing positively predicted team performance across all levels of moderators. The information sharing–team performance relationship was moderated by the representation of information sharing (as uniqueness or openness), performance criteria, task type, and discussion structure by uniqueness (a 3-way interaction). Three factors affecting team information processing were found to enhance team information sharing: task demonstrability, discussion structure, and cooperation. Three factors representing decreasing degrees of member redundancy were found to detract from team information sharing: information distribution, informational interdependence, and member heterogeneity. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The happy personality: A meta-analysis of 137 personality traits and subjective well-being.

This meta-analysis used 9 literature search strategies to examine 137 distinct personality constructs as correlates of subjective well-being (SWB). Personality was found to be equally predictive of life satisfaction, happiness, and positive affect, but significantly less predictive of negative affect. The traits most closely associated with SWB were repressive-defensiveness, trust, emotional stability, locus of control-chance, desire for control, hardiness, positive affectivity, private collective self-esteem, and tension. When personality traits were grouped according to the Big Five factors, Neuroticism was the strongest predictor of life satisfaction, happiness, and negative affect. Positive affect was predicted equally well by Extraversion and Agreeableness. The relative importance of personality for predicting SWB, how personality might influence SWB, and limitations of the present review are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

New trends in gender and mathematics performance: A meta-analysis.

In this article, we use meta-analysis to analyze gender differences in recent studies of mathematics performance. First, we meta-analyzed data from 242 studies published between 1990 and 2007, representing the testing of 1,286,350 people. Overall, d = 0.05, indicating no gender difference, and variance ratio = 1.08, indicating nearly equal male and female variances. Second, we analyzed data from large data sets based on probability sampling of U.S. adolescents over the past 20 years: the National Longitudinal Surveys of Youth, the National Education Longitudinal Study of 1988, the Longitudinal Study of American Youth, and the National Assessment of Educational Progress. Effect sizes for the gender difference ranged between –0.15 and +0.22. Variance ratios ranged from 0.88 to 1.34. Taken together, these findings support the view that males and females perform similarly in mathematics. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The visual perception of objective motion and subjective movement.

(This reprinted article originally appeared in Psychological Review, 1954, Vol 61, 304–314. The following abstract of the original article appeared in PA, Vol 29:5103.) The question of movement involves at least 3 closely related questions: How do we see the motion of an object? How do we see the stability of the environment? How do we perceive ourselves as moving in a stable environment? The author draws together the experimental evidence on the 3 questions and draws out its implications, including a hypothesis for research. The article concludes with a discussion of the requirements for a psychophysics of kinetic impressions. 19 references. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Reinforcing, subjective, and performance effects of lorazepam and diphenhydramine in humans.

The reinforcing. subjective. and performance effects of 400 mg diphenhydramine (D), 4 mg lorazepam (L), and placebo (P) were compared across repeated administrations in 12 healthy, adult male participants with histories of recreational sedative abuse. P, L, and D were administered orally in a block, random sequence 4 times each. L and D increased scores on participants liking of the drug, desire to take the drug again, and monetary value of the drug relative to placebo. D increased ratings on scales of unpleasant somatic side effects. When the choice was between D and P or between L and P, choice between D and L was greater than chance, and choice of P was less than chance. When the choice was between D and L, both drugs were chosen an equal number of times. L and D effects were consistent across repeated administrations. Correlational analysis showed that some subjective measures were positively correlated, whereas other measures were negatively correlated with measures of drug reinforcement. (PsycINFO Database Record (c) 2010 APA, all rights reserved)