认知操作、认知方式与外倾性人格特质的关系

对28名外倾被试和28名内倾被试进行实验性认知测试,以考察认知操作、认知方式与外倾性人格特质的关系。结果表明,内外倾被试在含有社会认知操作、非社会认知操作的认知任务的测试总分上没有差异,而在社会认知一非社会认知方式的评价分数上存在显著差异。外倾被试更多地倾向于社会认知型认知方式,内倾被试更多地倾向于非社会认知型认知方式。研究结果支持了外倾性与智力关系的假设：外倾性与社会认知一非社会认知的认知方式存在相关关系,而与认知操作测试总分无关。     

征兵用数字搜索测验的研制

基于信息加工速度理论自编征兵用数字搜索测验,使用该测验对全国15735名应征青年及190名新兵进行了测量,3个月新兵营训练结束时由228上级对1900名士兵的智力相关工作绩效情况进行了调查,通过对上述数据的分析确定了测验方法及划界分数,并进行了信、效度检验。结果表明:缺失不同数字对题目难度有影响;划界分数为197秒正确应答27题以上;该测验的内部一致性α系数为0.864;预测符合率为95.7%。     

Modeling development of frontal electroencephalogram (EEG) asymmetry: Sex differences and links with temperament

Asymmetric patterns of frontal brain electrical activity reflect approach and avoidance tendencies, with stability of relative right activation associated with withdrawal emotions/motivation and left hemisphere activation linked with approach and positive affect. However, considerable shifts in approach/avoidance‐related lateralization have been reported for children not targeted because of extreme temperament. In this study, dynamic effects of frontal electroencephalogram (EEG) power within and across hemispheres were examined throughout early childhood. Specifically, EEG indicators at 5, 10, 24, 36, 48, and 72 months‐of‐age (n = 410) were analyzed via a hybrid of difference score and panel design models, with baseline measures and subsequent time‐to‐time differences modeled as potentially influencing all subsequent amounts of time‐to‐time change (i.e., predictively saturated). Infant sex was considered as a moderator of dynamic developmental effects, with temperament attributes measured at 5 months examined as predictors of EEG hemisphere development. Overall, change in left and right frontal EEG power predicted declining subsequent change in the same hemisphere, with effects on the opposing neurobehavioral system enhancing later growth. Infant sex moderated the pattern of within and across‐hemisphere effects, wherein for girls more prominent left hemisphere influences on the right hemisphere EEG changes were noted and right hemisphere effects were more salient for boys. Largely similar patterns of temperament prediction were observed for the left and the right EEG power changes, with limited sex differences in links between temperament and growth parameters. Results were interpreted in the context of comparable analyses using parietal power values, which provided evidence for unique frontal effects.     

Kelley's formula as a basis for the assessment of reliable change

In the literature on the measurement of change,reliable change is usually determined by means of a confidence interval around an observed value of a statistic that estimates thetrue change. In recent literature on the efficacy of psychotherapies, attention has been particularly directed at the improvement of the estimation of the true change. Reliable Change Indices, incorporating thereliability-weighted measure of individual change, also known as Kelley's formula, have been proposed. According to current practice, these indices are defined as the ratio of such an estimator and an intuitively appealing criterion and then regarded as standard normally distributed statistics. However, because the authors fail to adopt an adequate standard error of the estimator, the statistical properties of their indices are unclear. In this article, it is shown that this can lead to paradoxical conclusions. The adjusted standard error is derived.     

Responsible Teenage Fatherhood in a South African Historically Disadvantaged Community

The study analysed the relationships between teacher ratings and standardised test scores in Reading and Mathematics for students receiving learning support for learning difficulties (n = 60, mean age= 16.3). Teacher ratings were found to significantly predict pupils' performance in Reading. Students with extended learning support had significantly higher teacher attainment ratings in both Reading and Mathematics. Teacher judgment ratings combined with standardized test scores were reliable for assessing instructional effectiveness. Standardised tests were more reliable than teacher ratings in assessing academic attainment.     

Extending the Debate Between Spearman and Wilson 1929: When do Single Variables Optimally Reproduce the Common Part of the Observed Covariances?

The covariances of observed variables reproduced from conventional factor score predictors are generally not the same as the covariances reproduced from the common factors. We sought to find a factor score predictor that optimally reproduces the common part of the observed covariances. It was found algebraically that—under some conditions—the single observed variable with highest loading on a factor reproduces the non-diagonal elements of the observed covariance matrix more exactly than the conventional factor score predictors. This finding is linked to Spearman's and Wilson's 1929 debate on the use of single variables as factor score predictors. A population-based and a sample-based simulation study confirmed the algebraic result that taking a single variable can outperform conventional factor score predictors in reproducing the non-diagonal covariances when the nonzero loading size and the number of nonzero loadings per factor are small. The results indicated that a weighted aggregation of variables does not necessarily lead to an improvement of the score over the variable with the highest loading.     

Developing agency through good work: Longitudinal effects of job autonomy and skill utilization on locus of control

An internal locus of control has benefits for individuals across multiple life domains. Nevertheless, whether it is possible to enhance an individual's internal locus of control has rarely been considered. The authors propose that the presence of job autonomy and skill utilization in work can enhance internal locus of control, both directly and indirectly via job satisfaction. Three waves of data over a four-year period from the Household, Income and Labour Dynamics in Australia Survey (N = 3045) were analyzed. Results showed that job autonomy directly shaped internal locus of control over time, as did job satisfaction. Skill utilization did not play a role in terms of affecting locus of control, and the indirect effects of both job autonomy and skill utilization via job satisfaction were weak. This study suggests the importance of job autonomy in promoting the development of an employee's internal locus of control.     

Detecting deception through small talk and comparable truth baselines

The present experiment investigates similarities in participants' nonverbal and verbal behaviours when responding to baseline and investigative questions, comparing two different types of baselines. Police literature suggests to obtain a baseline through small talk, whereas academic literature underlines the importance of baseline and investigative themes to be comparable. First, a baseline was obtained (either small talk or comparable), then the investigative questioning started. During the investigative questioning, participants either truthfully reported a set of actions they had actually performed or lied about them. Findings revealed that truth tellers and liars in the small talk condition did not differ in their level of similarity when responding to the baseline and investigative questions. In the comparable truth condition, levels of verbal similarity between the baseline and investigative questions were higher for truth tellers than for liars, but only for one variable: spatial detail. Results therefore showed that a small talk baseline should not be used to assess interviewees' credibility, and that a comparable truth baseline, although better than a small talk baseline, is still problematic.     

Ideal body shape preferences and eating disorder scores in adolescent women

Abstract

Using the body figure-preference ratings of Fallon and Rozin (1985), this study investigated the relationship between body shape preferences and eating disorder scores in a sample of adolescent women. These young women were found to express a large degree of body dissatisfaction, which was positively related to eating disorder symptomology. For the sample as a whole, there was no difference between ratings of the ideal figure and that perceived as most attractive. However, the Bulimia and Perfectionism scales did offer unique prediction of the ideal figure, over and above the Attractive figure. It was concluded that young women with high bulimic scores wish to be thinner than what they perceive as attractive. The present study suggests that what motivates this wish is the search for perfectionism.     

Jensen Effects and African/Coloured/Indian/White differences on Raven's Standard Progressive Matrices in South Africa

A test is made to determine whether various ethnic group differences on tests of cognitive performance in South Africa are like the Black/White differences in the United States in being positively associated with a tests' g loadings, where g is the general factor of intelligence. A non-parametric re-analysis is made of data from 1056 White, 1063 Indian, 778 mixed-race “Coloured,” and 1093 Black 14 year olds on the Raven's Standard Progressive Matrices Test in South Africa, given without time limits by Owen (1992) [Personality and Individual Differences, 13, 149]. The new analyses showed that the more highly correlated an item was with g, the more it predicted the White/Indian/Coloured/African differences on the test (Spearman's rhos from 0.35 to 0.85; all Ps<0.01). The effects remained regardless of which group g was extracted from. Understanding group differences around the world requires new research on the nature and nurture of g.