Recognition of vector patterns under transformations: Local and global determinants

The extent to which combined local position and orientation information contributes to the recognition of patterns under transformation was investigated. Vector patterns, which consist of arrays of line segments composed according to specific rules, were presented in pairs. Discrimination performance was measured both as a function of the degree of local perturbation in one member of an otherwise identical pair, and in terms of a global rotation of one pattern with respect to the other. Differences were found between vector-pattern types on this task that point to a two-component process for pattern recognition under transformation. One component involves the comparison of local orientation/position information in the original pattern with that in its transform. The second component is global and is related to the degree to which the vector pattern is invariant under certain whole-field (1-parameter) transformations.     

THELMA GWINN THURSTONE

This paper examines the life and career of Thelma Gwinn Thurstone—her career strategies and her contributions to psychological testing, intelligence theory, and instruction—based on her publications and a series of personal interviews with her and her colleagues. Thurstone's contributions, with her husband, L. L. Thurstone, included the development of the American Council on Education's Psychological Examinations and the Primary Mental Abilities test batteries. Her own work included the development of instructional materials using the common factor theory of intelligence. Thurstone, wife of a preeminent scholar and mother of three sons, pursued career strategies that facilitated her continued professional activity for six decades. Further research on measurement history and also on women's career strategies are suggested.     

Causal Attributions of Male and Female Performance by Young Children

Males and females in kindergarten and third grade predicted whether a boy or a girl would succeed on a masculine or a feminine task. Some predictions were confirmed; others were not. The children were asked to explain the winner's success by choosing among four determinants of achievement: ability, effort, task ease, and luck. For third graders, luck was more important in determining the success of an unpredicted winner than a predicted winner. For both ages, female success on a masculine task was attributed more to effort than to ability. These findings support attribution theory and indicate that differential perceptions of male and female performance exist in young children.     

Job crafting mediates how empowering leadership and employees’ core self-evaluations predict favourable and unfavourable outcomes

ABSTRACT

Based on job crafting theory and workplace resources theories, the present study develops a model of both antecedents and consequences of job crafting. We hypothesized subordinates’ perceptions of empowering leadership and core self-evaluations influence employee job crafting behaviours, which subsequently influence four outcomes: improving three employee well-being outcomes, (a) work-family enrichment, (b) flourishing, and (c) life satisfaction; and simultaneously reducing the organizational outcome of (d) deviant behaviours. Three-waves of data over nine months were collected from U.S. full-time employees (n = 276). Results showed empowering leadership and core self-evaluations positively related to expansive/approach forms of job crafting behaviours, which in turn related to the three different well-being outcomes. However, job crafting did not affect employee deviant behaviour. Instead, empowering leadership and core self-evaluations directly predicted less deviant behaviour. With the imputed data, we also found job crafting had a significant but weak relationship with deviant behaviour. These findings provide an integrated understanding of how and why employees engage in job crafting, and the important influence that job crafting has on employees’ subjective well-being. The present study advances leadership and job crafting theories, providing practical recommendations for promoting employee well-being and decreasing undesirable behaviours in the form of workplace deviance.     

The Recovery of Correlation Between Latent Abilities Using Compensatory and Noncompensatory Multidimensional IRT Models

This research examined correlation estimates between latent abilities when using the two-dimensional and three-dimensional compensatory and noncompensatory item response theory models. Simulation study results showed that the recovery of the latent correlation was best when the test contained 100% of simple structure items for all models and conditions. When a test measured weakly discriminated dimensions, it became harder to recover the latent correlation. Results also showed that increasing the sample size, test length, or using simpler models (i.e., two-parameter logistic rather than three-parameter logistic, compensatory rather than noncompensatory) could improve the recovery of latent correlation.     

Reminding as a basis for temporal judgments

In the normal course of events, some events bring to mind earlier events. This reminding or, in the context of list learning experiments, study-phase retrieval can serve as a basis for the accurate judgment of the relative recencies of the two events in question. In this article, evidence for this position is presented in three experiments. By manipulations of encoding using visual imagery instructions and word associations, appropriate conditions were arranged for reminding to occur. The results of all three studies support the position that reminding provides a direct basis for later judgments of the relative recency of events.