Ever since the early days of its existence, the field of psychology has been trying to achieve two different and somewhat contradictory objectives: to understand the "general principles" of the human mind and to explore the "uniqueness" of the individual mind. The latter direction has formed an independent subdiscipline within…

Past research has shown that the way people deal with religion is related to prejudice. Therefore, it is important to study the determinants of individual differences in adolescent religious attitudes. In the present study, it is proposed that both differences in personality and identity formation might determine these religious attitudes.…

The authors present the cases of two pupils who both show very serious, apparently similar learning difficulties, mainly in mathematics. An analysis beyond appearance of their learning activities revealed remarkable differences between them, in terms of both weaknesses and strengths. The authors point out that when teachers are planning remedial…

The possibility, which is based on the concept of reactive personality-environment transactions, that individuals learn different things from the same experience as a function of personality differences may help explain individual differences in adult developmental trajectories. In an analogue, longitudinal design, business students were taught…

This study examined the effects of three stimulus variables and background music on paired-associate learning of foreign language (FL) vocabulary. The stimulus variables were the frequency and concreteness of the native language (L1) words and the (phonotactical) typicality of the FL words. Sixty-four L1-FL pairs were presented for learning six…

Rate of forgetting is putatively invariant across individuals, sharing few associations with individual-differences variables known to influence encoding and retrieval. This classic topic in learning and memory was revisited using a novel statistical application, multilevel modeling, to examine whether (a) slopes of forgetting varied across…

Most studies have considered the effects of particular characteristics on academic achievement individually, which means that little is known about how they function together. Using the population-based Minnesota Twin Family Study, the authors investigated the effects of child academic engagement (interest, involvement, effort), IQ, depression,…

Optimal performance is the goal of all athletes, particularly when rewards are high. However, in pressure situations, many athletes perform suboptimally despite a high motivation to succeed. One of the more popular theories addressing performance breakdown under stress implicates self-focused attention. Attention directed to the self may interfere…

The issue of whether suicide can be a good death was separated into two different questions: (1) can suicide be an appropriate death, and (2) can suicide be a rational death? Several definitions of an "appropriate" death were proposed, and suicide was seen as potentially appropriate. Similarly, several criteria for rationality were proposed and…

The purpose of the present study was to investigate differences in neural information transmission between gifted and normal children involved in scientific hypothesis generation. To investigate changes in the amount of information transmission, the children's averaged-cross mutual information (A-CMI) of EEGs was estimated during their generation…

Children with autism not only display social impairments but also significant individual differences in social development. Understanding the source of these differences, as well as the nature of social impairments, is important for improved diagnosis and treatments for these children. Current theory and research suggests that individual…

The aim of this study was to investigate the relationship of fluid intelligence (gf) with trait Openness and Conscientiousness. A total of 2658 participants completed the NEO PI-R [Costa Jr., P. T. & MCrae, R. (1985). Revised NEO Personality Inventory and Five-Factor Inventory Professional Manual. Odessa, FL: Psychological Assessment…

This study sought to investigate the contributing factors to and frequency of violence against health care workers (HCWs) working in western Turkey. The population is composed of a random sample of 1,209 HCWs from 34 health care workplaces. Written questionnaires were given to HCWs at all sites, where staff were instructed to register all types of…

Spatial skills are known to vary widely among normal individuals. This project was designed to address whether these individual differences are differentially related to large-scale environmental learning from route (ground-level) and survey (aerial) perspectives. Participants learned two virtual environments (route and survey) with limited…

Based on 10 weekly telephone interviews with first-year college students (N=202; 63% women; M=18.8 years, SD=0.4), within- and between-person associations of positive and negative affect with alcohol use were examined. Multi-level models confirmed hypothesized within-person associations between weekly positive affect and alcohol use: Higher…