Appearance-related teasing,body dissatisfaction,and disordered eating: A meta-analysis

A meta-analysis was conducted to determine the relationship between appearance and weight-based teasing and three outcome measures: body dissatisfaction, restrictive eating, and bulimic behaviors. Four meta-analyses were conducted. Fifty effect sizes (N = 10,618) resulted in a moderate effect size of .39 for the relationship between weight teasing and body dissatisfaction; 24 effect sizes (N = 7190) resulted in an effect size of .32 for the relationship between appearance teasing and body dissatisfaction; 20 effect sizes (N = 4792) resulted in an effect size of .35 for the relationship between weight teasing and dietary restraint; and 22 effect sizes (N = 5091) resulted in an effect size of .36 for the relationship between weight teasing and bulimic behaviors. Significant moderators that emerged were teasing measure type, publication type, study type, age group, and gender. The findings offer further support for the inclusion of strategies in body image and eating disorders’ prevention and intervention programs that focus on handling negative, appearance-related commentary.     

Priming in interpersonal contexts: implications for affect and behavior

Priming stereotypes can lead to a variety of behavioral outcomes, including assimilation, contrast, and response behaviors. However, the conditions that give rise to each of these outcomes are unspecified. Furthermore, theoretical accounts posit that prime-to-behavior effects are either direct (i.e., unmediated) or mediated by cognitive processes, whereas the role of affective processes has been largely unexplored. The present research directly investigated both of these issues. Three experiments demonstrated that priming a threatening social group ("hoodies") influences both affect and behavior in an interpersonal context. Hoodie priming produced both behavioral avoidance and several affective changes (including social apprehension, threat sensitivity, and self-reported anxiety and hostility). Importantly, avoidance following hoodie priming was mediated by anxiety and occurred only under conditions of other- (but not self-) focus. These results highlight multiple routes through which primes influence affect and behavior, and suggest that attention to self or others determine the nature of priming effects.     

Thriving and Ethnic Discrimination: A Mixed‐Methods Study

Using mixed methodology, the authors examined facilitators to psychological thriving—or positive changes after adversity—in the context of ethnic discrimination among Latina/o adults. Several themes emerged from qualitative interviews (n = 10), including proving others wrong, ethnic identity, and community involvement. Quantitative analyses (n = 97) indicated that U.S. identity moderated the relationship between ethnic microaggressions and thriving such that high levels of U.S. identity were associated with lower thriving. Implications and future directions are discussed. Usando una metodología mixta, los autores examinaron los facilitadores de la prosperidad psicológica (o cambios positivos tras la adversidad) en el contexto de la discriminación étnica en personas latinas adultas. Varios temas surgieron de las entrevistas cualitativas (n = 10), entre los que se incluyen demostrar que otros estaban equivocados, la identidad étnica y la implicación de la comunidad. Los análisis cuantitativos (n = 97) indicaron que la identidad estadounidense moderó la relación entre las microagresiones étnicas y la prosperidad de tal modo que unos altos niveles de identidad estadounidense se asociaron con una baja prosperidad. Se discuten las implicaciones y direcciones futuras.     

‘Damned one way or another’: Bariatric surgeons’ reflections on patients’ suboptimal outcomes from weight loss surgery

Objective: A minority of patients show sub-optimal outcomes after weight loss surgery. Research has identified predictors of poor outcomes focusing on the patients’ perspective. No research has explored surgeons’ accounts. Design: Ten Bariatric surgeons were interviewed using a critical incident approach to explore their explanations for sub-optimal outcomes in the context of a real-life case. Data were analysed using thematic analysis. Results: Three main themes were developed: ‘Challenges to success’ highlighting the role of psychosocial issues, poor adherence and patient non-disclosure; ‘Ideal world solutions’ describing who should identify and address psychosocial issues; and ‘Real world compromise’ reflecting the impact of limited resources and weighing up risk between carrying out versus not carrying out surgery. Transcending these themes was the notion of ‘responsibility’ with surgeons balancing the role of the patient, themselves and the health care system. Conclusion: Some surgeons concluded that if they had known before surgery what they know now, they may not have operated. All emphasised that they could only know what was disclosed by the patient, that they were not convinced that not operating would have resulted in better outcomes in the longer term and many felt that they were ‘damned one way or the other’.     

When differences matter: intergroup distinctiveness and the evaluation of impostors

The present study examined the effect of intergroup distinctiveness and group membership on evaluations of impostors. We predicted that ingroup members would be harsher than outgroup members on an impostor and that perceptions of intergroup distinctiveness would further moderate these evaluations. Specifically, we tested the social identity theory prediction that low intergroup distinctiveness would lead to greater derogation of the impostor (the ‘reactive distinctiveness’ hypothesis) against the self‐categorization hypothesis that high intergroup distinctiveness would instigate more derogation of an impostor (the ‘reflective distinctiveness’ hypothesis). In this study, vegetarians (ingroup members) and meat eaters (outgroup members) were presented with a target claiming to be vegetarian, but caught indulging in a meat dish. We found that ingroup members derogated the impostor more and felt less pleased about discovering the impostor behaviour than did outgroup members. In line with the reflective distinctiveness hypothesis, the heightened derogation displayed by ingroup members only emerged when intergroup distinctiveness was high, an effect that was mediated by ratings of group identification. The discussion focuses on the different responses intergroup distinctiveness may evoke. Copyright © 2005 John Wiley & Sons, Ltd.     

Meta-analytic methods of pooling correlation matrices for structural equation modeling under different patterns of missing data

Three methods of synthesizing correlations for meta-analytic structural equation modeling (SEM) under different degrees and mechanisms of missingness were compared for the estimation of correlation and SEM parameters and goodness-of-fit indices by using Monte Carlo simulation techniques. A revised generalized least squares (GLS) method for synthesizing correlations, weighted-covariance GLS (W-COV GLS), was compared with univariate weighting with untransformed correlations (univariate r) and univariate weighting with Fisher's z-transformed correlations (univariate z). These 3 methods were crossed with listwise and pairwise deletion. Univariate z and W-COV GLS performed similarly, with W-COV GLS providing slightly better estimation of parameters and more correct model rejection rates. Missing not at random data produced high levels of relative bias in correlation and model parameter estimates and higher incorrect SEM model rejection rates. Pairwise deletion resulted in inflated standard errors for all synthesis methods and higher incorrect rejection rates for the SEM model with univariate weighting procedures.     

Transfer to intermediate forms following concept discrimination by pigeons: chimeras and morphs

Two experiments examined pigeons' generalization to intermediate forms following training of concept discriminations. In Experiment 1, the training stimuli were sets of images of dogs and cats, and the transfer stimuli were head/body chimeras, which humans tend to categorize more readily in terms of the head part rather than the body part. In Experiment 2, the training stimuli were sets of images of heads of dogs and cats, and the intermediate stimuli were computer-generated morphs. In both experiments, pigeons learned the concept discrimination quickly and generalized with some decrement to novel instances of the categories. In both experiments, transfer tests were carried out with intermediate forms generated from both familiar and novel exemplars of the training sets. In Experiment 1, the pigeons' transfer performance, unlike that of human infants exposed to similar stimuli, was best predicted by the body part of the stimulus when the chimeras were formed from familiar exemplars. Spatial frequency analysis of the stimuli showed that the body parts were richer in high spatial frequencies than the head parts, so these data are consistent with the hypothesis that categorization is more dependent on local stimulus features in pigeons than in humans. There was no corresponding trend when the chimeras were formed from novel exemplars. In Experiment 2, when morphs of training stimuli were used, response rates declined smoothly as the proportion of the morph contributed by the positive stimulus fell, although results with morphs of novel stimuli were again less orderly.     

Visual statistical learning in infancy: evidence for a domain general learning mechanism

The rapidity with which infants come to understand language and events in their surroundings has prompted speculation concerning innate knowledge structures that guide language acquisition and object knowledge. Recently, however, evidence has emerged that by 8 months, infants can extract statistical patterns in auditory input that are based on transitional probabilities defining the sequencing of the input's components (Science 274 (1996) 1926). This finding suggests powerful learning mechanisms that are functional in infancy, and raises questions about the domain generality of such mechanisms. We habituated 2-, 5-, and 8-month-old infants to sequences of discrete visual stimuli whose ordering followed a statistically predictable pattern. The infants subsequently viewed the familiar pattern alternating with a novel sequence of identical stimulus components, and exhibited significantly greater interest in the novel sequence at all ages. These results provide support for the likelihood of domain general statistical learning in infancy, and imply that mechanisms designed to detect structure inherent in the environment may play an important role in cognitive development.