Discrimination by young infants of stimuli presented discontinuously

Four experiments are reported showing that young infants can pick up visual information from very brief displays. Pattern, edge orientation, and form can be discriminated when stimuli are presented for repeated exposures of only 300 ms.     

Changes in teacher–student relationships

Background. Although teacher–student relationships lie at the heart of students’ schooling experience, fundamental questions regarding these relationships remain unanswered. Aims. This study investigates three related questions about these relationships: To what extent do they change from the beginning to the end of a school year? Are any emergent changes associated with shifts in students’ academic or motivational outcomes? Are certain ‘upstream’ factors associated with improvements or declines in teacher–student relationships? Sample. We investigate these questions with a sample of middle school students (N = 119) and their teachers (N = 30). Methods. Through a novel approach which accounts for both perspectives within teacher–student relationships, we assess these relationships at the beginning and end of the school year. Using multi-level models, we examine how changes in these relationships are associated with changes in students’ grades, homework completion rates, self-efficacy, and effort. In addition, we examine associations with two potential precursors to teacher–student relationships: students’ accuracy in taking their teachers’ perspective and their perceptions of similarity to their teachers. Results. We find that substantial changes occur in these relationships from the beginning to the end of the year; these changes are associated with shifts in important student outcomes; and changes in students’ social perspective taking accuracy and perceived similarity to their teachers correspond with changes in teacher–student relationships. Conclusions. Given the malleability of teacher–student relationships and their importance for key achievement and motivational outcomes, we advocate for researchers to conduct field experiments to inform how to improve these critical relationships.     

Online Cognitive Behavioural Therapy Training for Therapists: Outcomes,Acceptability, and Impact of Support

The objectives of the present study were to assess the effects of online cognitive behavioural therapy (CBT) training for therapists on measures of CBT knowledge, skills, confidence, and utilisation; to determine what differences might exist between a group supported by regular telephone contact and an independent group who undertook online training without additional support; and to determine the acceptability of CBT online training among rural and remote mental health professionals. Mental health practitioners were randomly allocated to a supported training group (six sessions of 15‐min support) or an independent group. They undertook a 12‐week online CBT training program. The two groups showed similar gains on an objective test of knowledge of CBT, and on self‐report measures of knowledge, skills, confidence levels, and utilisation of skills. However, the supported training group had a significantly higher program completion rate than the independent group. Participants evaluated the program favourably. The results suggest that online CBT training represents a promising and cost‐effective approach to training the mental health workforce, and may be particularly attractive for those who live in regional, rural, and remote communities. A challenge is to determine the most cost‐effective ways to enhance program completion rates and trainee skills.     

Evaluating vigilance deficits in ADHD: a meta-analysis of CPT performance

We meta-analytically review 47 between-groups studies of continuous performance test (CPT) performance in children with attention-deficit/hyperactivity disorder (ADHD). Using a random effects model and correcting for both sampling error and measurement unreliability, we found large effect sizes (δ) for overall performance, but only small to moderate δ for performance over time in the handful of studies that reported that data. Smaller δs for performance over time are likely attributable, in part, to the extensive use of stimuli for which targets and distractors are quite easily differentiated. Artifacts accounted for a considerable proportion of variance among observed δs. Effect sizes reported in previous reviews were significantly attenuated because of the presence of uncorrected artifacts and highlight the necessity of accounting for artifactual variance in future work to determine the amount of true neurocognitive heterogeneity within ADHD. Signal detection theory and diffusion modeling analyses indicated that the ADHD-related deficits were because of decreased perceptual sensitivity (d') and slower drift rates (v). Results are interpreted the context of several recent models of ADHD.     

Perceived racism and mental health among Black American adults: a meta-analytic review

The literature indicates that perceived racism tends to be associated with adverse psychological and physiological outcomes; however, findings in this area are not yet conclusive. In this meta-analysis, we systematically reviewed 66 studies (total sample size of 18,140 across studies), published between January 1996 and April 2011, on the associations between racism and mental health among Black Americans. Using a random-effects model, we found a positive association between perceived racism and psychological distress (r = .20). We found a moderation effect for psychological outcomes, with anxiety, depression, and other psychiatric symptoms having a significantly stronger association than quality of life indicators. We did not detect moderation effects for type of racism scale, measurement precision, sample type, or type of publication. Implications for research and practice are discussed.     

The psychology of markets vs. hierarchies: The procedural fairness of alternative allocation procedures for benefits and burdens

This paper reports two studies examining the influence of social context on judgments about the fairness and desirability of two allocation mechanisms — markets and hierarchies. Two allocation contexts are compared: distributing benefits and burdens. The results show that people prefer to allocate burdens through markets and benefits through hierarchies. In both cases desirability is linked to procedural fairness, suggesting that people always prefer to use the fairer procedure for allocation, but view different procedures as fairer in these different contexts. Procedural fairness judgments were found to be linked to respondents' judgments about the impact of using different procedures to make allocations in each context, with people in each case preferring the procedure that they believe will have the most positive impact upon group cohesion. These findings suggest that what is construed as a fair procedure in one social context is not the same as what is construed as a fair procedure in another social context.