Functional brain organization of working memory in adolescents varies in relation to family income and academic achievement

Working memory (WM) capacity reflects executive functions associated with performance on a wide range of cognitive tasks and education outcomes, including mathematics achievement, and is associated with dorsolateral prefrontal and parietal cortices. Here we asked if family income is associated with variation in the functional brain organization of WM capacity among adolescents, and whether that variation is associated with performance on a statewide test of academic achievement in mathematics. Participants were classified into higher‐income and lower‐income groups based on family income, and performed a WM task with a parametric manipulation of WM load (N‐back task) during functional magnetic resonance imaging (fMRI). Behaviorally, the higher‐income group had greater WM capacity and higher mathematics achievement scores. Neurally, the higher‐income group showed greater activation as a function of WM load in bilateral prefrontal, parietal, and other regions, although the lower‐income group exhibited greater activation at the lowest load. Both groups exhibited positive correlations between parietal activations and mathematics achievement scores, but only the higher‐income group exhibited a positive correlation between prefrontal activations and mathematics scores. Most of these findings were maintained when higher‐ and lower‐income groups were matched on WM task performance or nonverbal IQ. Findings indicate that the functional neural architecture of WM varies with family income and is associated with education measures of mathematics achievement.     

Affiliation with new peer acquaintances during two initial social support interactions

Abstract This investigation examined the influence of a prior social support interaction on a subsequent interaction between new peer acquaintances. Pairs of adolescent peers (recruited in a large metropolitan area in the United States) were videotaped as they met and discussed current life concerns in 2 separate interactions. Results indicated that (a) the behaviors of new interaction partners are coordinated within an interaction (social coordination hypothesis), (b) behaviors exhibited during an initial interaction predict behaviors exhibited during a subsequent interaction (influential interaction hypothesis), (c) individuals affiliate in similar ways across interactions (cross‐situational consistency hypothesis), and (d) behaviors reflecting greater comfort with interaction increase across interactions (uncertainty reduction hypothesis). The discussion focuses on implications of results and contributions to existing literatures.     

MULTIPLE-CHOICE AND CONSTRUCTED RESPONSE TESTS OF ABILITY: RACE-BASED SUBGROUP PERFORMANCE DIFFERENCES ON ALTERNATIVE PAPER-AND-PENCIL TEST FORMATS

We present an example of an innovative constructed response test format–a write-in/mark-in paper-and-pencil test–as an alternative to the traditional multiple-choice paper-and-pencil test, with the potential for reducing subgroup differences. We present subgroup differences data on these 2 paper-and-pencil test formats on an operational promotional exam in a sample of African American and White firefighters. The tests were designed to measure the same content domain. Using within-subjects data that compared the performance of 13 African American and 14 White fire captains, and between-subjects data that compared the performance of 21 African American and 49 White fire captains, several results were in the predicted direction such that subgroup differences were reduced on the constructed response test. However, these results did not reach statistical significance. Therefore, the study points to the need for additional research to further evaluate the promise of the constructed response test format.     

Racial differences in birth outcomes: the role of general, pregnancy, and racism stress.

OBJECTIVE: This study examined the role of psychosocial stress in racial differences in birth outcomes. DESIGN: Maternal health, sociodemographic factors, and 3 forms of stress (general stress, pregnancy stress, and perceived racism) were assessed prospectively in a sample of 51 African American and 73 non-Hispanic White pregnant women. MAIN OUTCOME MEASURES: The outcomes of interest were birth weight and gestational age at delivery. Only predictive models of birth weight were tested as the groups did not differ significantly in gestational age. RESULTS: Perceived racism and indicators of general stress were correlated with birth weight and tested in regression analyses. In the sample as a whole, lifetime and childhood indicators of perceived racism predicted birth weight and attenuated racial differences, independent of medical and sociodemographic control variables. Models within each race group showed that perceived racism was a significant predictor of birth weight in African Americans, but not in non-Hispanic Whites. CONCLUSIONS: These findings provide further evidence that racism may play an important role in birth outcome disparities, and they are among the first to indicate the significance of psychosocial factors that occur early in the life course for these specific health outcomes.     

B. F. Skinner and T. N. Whitehead: a brief encounter, research similarities, hawthorne revisited, what next?

B. F. Skinner and T. N. Whitehead recalled a personal interaction in 1934, with differing memories of the event. No evidence of other subsequent interactions or mutual citations has been found. Although they went their separate ways, three similarities in their research strategies have been found and are discussed. Elements of Whitehead's Hawthorne study and Skinner's concurrent, parallel work reveal that they both (a) introduced the cumulative curve to report data, (b) used a small number of subjects studied over time, and (c) used highly accurate recording devices. A few "afterwords" are offered on their lives and writings, and again, on the Hawthorne effect. A suggestion is made that a Skinner-Whitehead research approach might be useful in studying gambling behavior.     

The influence of therapist experience upon evaluative perceptions of family members

Abstract

This study investigated the influence of experience in family therapy on therapists' evaluative perceptions of family members. Beginning students in family therapy, advanced students, and experienced staff rated members of 100 families according to the Semantic Differential technique. Contrary to expectations, beginning students did not evaluate identified patients more favorably than parents. Staff and advanced students, however, rated parents more favorably than identified patients. Beginning students were also found to evaluate all family members more favorably than staff and advanced students. These results were discussed in terms of experienced therapists initially taking the side of the parents and the effects this potential source of bias may have on the course of family therapy.     

The Legal Rights of Students with Disabilities in Christian Schools

The adoption of Section 504 of the Rehabilitation Act of 1973 (Section 504) and the Education for All Handicapped Children's Act, now the Individuals with Disabilities Education Act (IDEA), have had a major impact on the delivery of services for children with special needs.

In light of the legal issues surrounding the delivery of special education to children who attend Christian schools, the remainder of this article is divided into two parts. The first section opens with an overview of relevant litigation pertinent to special education before reviewing Sections 504 and the IDEA, along with its regulations, as they apply to religious schools. The second part offers practical suggestions for educators in Christian elementary and secondary schools as they work to serve children with special needs.