The effects of labeling bias on prognostic outlook for children as a function of diagnostic label and profession

Labeling bias refers to expectations that others might have for a person given a particular label. This study investigated the effects of labeling bias on prognostic outlook for children as a function of diagnostic labels and professional group membership. School psychologists, regular and special education teachers, and introductory psychology students read a vignette that described an elementary-school-aged boy with behavior problems. The vignette was held constant for all participants, but one of four labels (conduct disordered, socially maladjusted, serious emotionally disturbed, no exceptionality) was varied at the end of the vignette. Respondents then estimated the child's likelihood of future success in interpersonal relationships, the likelihood of further behavioral difficulties, and overall adjustment of the child. There was a significant effect noted for diagnostic label across all professionals on the interpersonal relations variable; the serious emotionally disturbed label resulted in judgments of significantly poorer outlook than any other diagnostic label except socially maladjusted. There were no other significant labeling bias effects for the other dependent measures, but a main effect for diagnostic label on judgment of overall adjustment did approach significance. There were no significant effects noted for professional group membership. Professionals should consider the use of a label other than SED to minimize labeling bias effects on judgment of interpersonal adjustment in children with behavioral difficulties. © 1996 John Wiley & Sons, Inc.     

Maximal heart rate declines linearly with age independent of cardiorespiratory fitness levels

There have been many conflicting observations between the linear or curvilinear decline in maximal heart rate (HR_max) with age. The aim of this study was to determine if linear or curvilinear equations would better describe the decline in HR_max with age in individuals of differing cardiorespiratory fitness (CRF) levels. Treadmill cardiopulmonary exercise test (CPX) results from participants (1510 men and 1134 women; 18–76 years) free of overt cardiovascular disease were retrospectively examined using cross-sectional and longitudinal study designs. Participants completing ≥2 CPX with ≥1 year between test dates were included in the longitudinal analysis (325 men and 150 women). Linear and quadratic regressions were applied to age and HR_max for the whole cohort and respective CRF groups (high, moderate, and low, relative to age and gender normative values). To test for differences among linear, quadratic, and polynomial equations, the change in R² (cross-sectional analysis) and Bayesian information criterion (BIC) (longitudinal analysis) from the linear to the more complex models were calculated. The quadratic or polynomial regression in the cross-sectional analysis, marginally improved the variance in HR_max explained by age compared to the linear regression for the whole cohort (0.2%), moderate fit group (0.3%), and low fit group (0.8%). With no improvements in the high fit group. BIC did not improve for any CRF category in the longitudinal analysis. In conclusion, the minimal differences among linear, quadratic, and polynomial equations in the respective CRF groups, emphasizes the use of linear prediction equations to estimate HR_max.     

New media environments’ comparative effects upon intercultural sensitivity: A five-dimensional analysis

An experimental 2 (channel) × 2 (gender) × 3 (time) mixed factorial design (N = 159) was applied to test and compare how individual dimensions of intercultural sensitivity might be affected by two channels: a virtual environment (i.e., Second Life^®) versus a Web environment. Using a modified version of Chen and Starosta's Intercultural Sensitivity Scale (ISS), the study sought to identify which of the five ISS dimensions played the most influential role in intercultural sensitivity outcomes: interaction enjoyment, interaction engagement, interaction confidence, interaction attentiveness, or respect for cultural differences. Results showed that one's willingness and effort toward understanding an intercultural interaction – interaction attentiveness – played the greatest and most statistically significant role in intercultural sensitivity outcomes, and that this effect was greatest within the virtual environment channel. Gender effects were also found, in which men experienced greater enjoyment but women expressed more attentiveness.