The Value of Task Conflict to Group Decisions

We tested the ability of task conflict to improve the quality of decisions made by four‐person groups. In a choice between two entrepreneurial investments, conflict was created by endowing group members with a preference for either one investment or the other. Because the decision was subjective, decision quality was necessarily judged by a process criterion, the reduction in the biased evaluation of new information to support the leading alternative. Groups in which conflict was installed exhibited less bias than individuals, who themselves exhibited less bias than groups without such conflict. Regardless of whether conflict was installed, groups that reached an early consensus exhibited the greatest information bias, while groups that experienced sustained conflict exhibited the least. Before achieving consensus, information bias was not significantly different from zero, but then rose steadily after that agreement. This result identifies one specific mechanism by which conflict can improve the process of group decisions. Copyright © 2011 John Wiley & Sons, Ltd.     

An Analysis of Nudity in Chinese Magazine Advertising: Examining Gender, Racial and Brand Differences

This study gives a most recent view of nudity in Chinese magazine advertising. Focusing on gender, racial and brand differences, the authors content analyzed 2,058 models in 19 Chinese consumer magazines from a stratified random sample of four?months in 2009. Results showed that female models were more likely to be shown in different levels of nudity than male models, and Western models were more likely to be shown in different levels of nudity than Chinese models, as predicted. However, regarding brand origin, although Western advertisers portrayed models in higher levels of nudity, Western and Chinese advertisers did not differ in their portrayals when models were examined separately by brand origin. Our study suggests that sexism in advertising is a cross-cultural phenomenon, and Western advertising models are the trend setters of sexual images in Chinese magazine advertising. Chinese advertising is not only a “melting pot” of cultural values, but also a “melting pot” of advertising practices.     

Adolescents with suicidal and nonsuicidal self-harm: clinical characteristics and response to therapeutic assessment

Self-harm is one of the best predictors of death by suicide, but few studies directly compare adolescents with suicidal versus nonsuicidal self-harm. Seventy adolescents presenting with self-harm (71% young women, ages 12-18 years) who participated in a randomized controlled trial were divided into suicidal and nonsuicidal self-harm categories using the Columbia Classification Algorithm of Suicide Assessment. Adolescents with suicidal self-harm were more likely than those with nonsuicidal self-harm to be young women, 22/23 (96%) versus 34/47 (72%), odds ratio (OR) = 8.33, 95% confidence interval (CI) [1.03, 50.0]; had a later age of onset of self-harm, 15.4 years vs. 13.8 years, mean difference = 1.6, 95% CI [.8, 2.43]; and used self-poisoning more often, 18/23 (78%) versus 11/47 (23%), OR = 3.43, 95% CI [2.00, 5.89]. Only those with nonsuicidal self-harm had an improvement on Children's Global Assessment Scale score following a brief therapeutic intervention, mean difference = 8.20, 95% CI [.97, 15.42]. However, there was no interaction between treatment and suicidality. There are important differences between adolescents presenting with suicidal and nonsuicidal self-harm. Suicidal self-harm in adolescence may be associated with a less favorable response to therapeutic assessment.     

Longitudinal Results of Cognitive Behavioral Treatment for Youths with Inflammatory Bowel Disease and Depressive Symptoms

Youths with chronic physical illnesses face increased rates of psychological problems and the burden of coping with physical illness-related challenges. The following data describes treatment outcome maintenance results from a randomized clinical trial investigating the impact of a cognitive behavioral intervention Primary and Secondary Control Enhancement Therapy-Physical Illness (PASCET-PI) as compared to treatment as usual (TAU) on youths with inflammatory bowel disease (IBD). Forty-one participants aged 11-17 with IBD and concurrent depressive symptomatology were randomized to PASCET-PI (n?=?22) or TAU (n?=?19). Self-reported depressive features, global functioning, and DSM-IV depressive symptomatology were assessed immediately post-treatment (T2), followed by assessments at 6-months (T3) and 12-months (T4) post-treatment initiation. Repeated measure models revealed significantly improved global psychosocial functioning in youths randomized to PASCET-PI compared to youths randomized to TAU. Improvements in self-reported depressive features and DSM-IV depressive symptoms were found at the trend level for youths randomized to PASCET-PI relative to those receiving TAU. Effect size estimates for all outcome variables suggested large to medium treatment effects.     

Better late than never? The effect of feedback delay on ERP indices of reward processing

The feedback negativity (FN), an early neural response that differentiates rewards from losses, appears to be generated in part by reward circuits in the brain. A prominent model of the FN suggests that it reflects learning processes by which environmental feedback shapes behavior. Although there is evidence that human behavior is more strongly influenced by rewards that quickly follow actions, in nonlaboratory settings, optimal behaviors are not always followed by immediate rewards. However, it is not clear how the introduction of a delay between response selection and feedback impacts the FN. Thus, the present study used a simple forced choice gambling task to elicit the FN, in which feedback about rewards and losses was presented after either 1 or 6?s. Results suggest that, at short delays (1?s), participants clearly differentiated losses from rewards, as evidenced in the magnitude of the FN. At long delays (6?s), on the other hand, the difference between losses and rewards was negligible. Results are discussed in terms of eligibility traces and the reinforcement learning model of the FN.     

Fitting a Thurstonian IRT model to forced-choice data using Mplus

To counter response distortions associated with the use of rating scales (a.k.a. Likert scales), items can be presented in a comparative fashion, so that respondents are asked to rank the items within blocks (forced-choice format). However, classical scoring procedures for these forced-choice designs lead to ipsative data, which presents psychometric challenges that are well described in the literature. Recently, Brown and Maydeu-Olivares (Educational and Psychological Measurement 71: 460–502, 2011a) introduced a model based on Thurstone’s law of comparative judgment, which overcomes the problems of ipsative data. Here, we provide a step-by-step tutorial for coding forced-choice responses, specifying a Thurstonian item response theory model that is appropriate for the design used, assessing the model’s fit, and scoring individuals on psychological attributes. Estimation and scoring is performed using Mplus, and a very straightforward Excel macro is provided that writes full Mplus input files for any forced-choice design. Armed with these tools, using a forced-choice design is now as easy as using ratings.     

Explaining the relation between thin ideal internalization and body dissatisfaction among college women: the roles of social comparison and body surveillance

Sociocultural models of disordered eating lack comprehensive explanations as to how thin ideal internalization leads to body dissatisfaction. This study examined two social psychological theories as explanations of this relation, namely social comparison and objectification theories, in a sample of 265 women attending a Southeastern university. Social comparison (both general and appearance-related) and body surveillance (the indicator of objectification) were tested as mediators of the relation between thin ideal internalization and body dissatisfaction using bootstrapping analyses. Results indicated that body surveillance was a significant specific mediator of this relation; however, neither operationalization of social comparison emerged as such. Results serve to elaborate upon the sociocultural model of disordered eating by providing a more comprehensive understanding of the processes by which thin ideal internalization manifests itself in body dissatisfaction. The current findings also highlight the importance of targeting body surveillance in clinical settings.     

Transposed-letter priming effect in Hebrew in the same-different task

We investigated the interaction between morphological structure and transposed-letter priming using the same-different task with Hebrew, a Semitic language in which morphology has been shown to play a key role in visual word recognition. In contrast to the results observed with lexical decision (e.g., Velan & Frost, 2009, 2011), a transposed-letter priming effect was observed irrespective of the morphological structure of the words. We take these results to suggest that morphological decomposition occurs only in the service of lexical access. We discuss further a unique feature of written Arabic, another Semitic language, to explain the apparent conflict between our findings and those reported by Perea, Abu Mallouh, García-Orza, and Carreiras (2010).     

The real you? The role of visual cues and comment congruence in perceptions of social attractiveness from facebook profiles

The purpose of this study was to examine the effects of social cues in self-presentations and the congruence of other-generated comments with the self-presentation in people's evaluations of a profile owner. A 2 (level of social cues: high vs. low) × 2 (congruent vs. incongruent) × 2 (order) × 2 (multiple messages) mixed-subject experiment was conducted with 104 college students. The results showed that a profile owner was perceived less socially attractive when other-generated comments were incongruent with the profile owner's self-presentation. No matter how people package themselves with extravagant self-presentations, it cannot be very successful without validation from others. Interestingly, an interaction effect between congruence and the level of social cues suggested that perceived popularity was low in the incongruent condition regardless of level of social cue. Theoretical and practical implications were also discussed.     

Pals in power armor: attribution of human-like emotions to video game characters in an ingroup/outgroup situation

Previous research has demonstrated the tendency for humans to anthropomorphize computers-that is, to react to computers as social actors, despite knowing that the computers are mere machines. In the present research, we examined the attribution of both primary (non-uniquely human) and secondary (human-like) emotions to ingroup (teammate) and outgroup (opponent) computer-controlled characters in a video game. We found that participants perceived the teammate character as experiencing more secondary emotions than the opponent character, but that they perceived the teammate and opponent character as experiencing equal levels of primary emotions. Thus, participants anthropomorphized the ingroup character to a greater extent than the outgroup character. These results imply that computers' "emotions" are treated with a similar ingroup/outgroup social regard as the emotions of actual humans.