Group Dynamics: Theory, Research, and Practice

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  • Developing a measure of collective efficacy for female netball using polytomous item response modeling and multilevel confirmatory analysis. 20170529
    This study outlines the development of a multidimensional measure of collective efficacy (CE) for netball using polytomous item response theory, confirmatory factor analysis, and multilevel confirmatory factor analysis (MLCFA). Items were written to fit into six subscales following the suggestions by Paskevich, Brawley, Dorsch, and Widmeyer, (1999). The sample consisted of 537 females in 56 teams. The results showed that at the lower end of the response scale, options were not all endorsed. A six-factor correlated solution was the best-fitting model. MLCFA further produced good model data fit. The results demonstrate that the items and their underlying factor structure are grounded at both the individual and team level, with factor loadings at the team level suggesting the CE items to be a strong measure of team CE. Correlations between the CE measure and the Group Environment Questionnaire provide evidence for the validity of the CE measure. (PsycINFO Database Record (c) 2017 APA, all rights reserved)
  • Efficacy of group psychotherapy for panic disorder: Meta-analysis of randomized, controlled trials. 20170427
    Among psychological treatments for panic disorder (PD) with or without agoraphobia, group therapy is an established and cost-effective treatment. The typical review assessing the effects of psychological treatments for PD merges findings from both individual and group formats. What is absent from the literature is a meta-analysis that separately summarizes the efficacy of group treatments. The present meta-analysis addresses this gap by estimating the efficacy of group psychotherapy for PD in adults using randomized, controlled trials (RCTs). More specifically, studies that directly compared the effects of group psychotherapy with control groups or alternative treatments were included. We identified 15 RCTs that yielded 19 comparisons with 864 patients. In most studies, group therapy was based on a cognitive–behavioral approach. Outcomes assessing panic, agoraphobia, depression, and general anxiety symptoms were extracted and between-groups effect sizes (Hedges’ g) calculated using a random-effects model. Results showed large effects for group therapy reducing symptoms of panic and agoraphobia when compared with no-treatment control groups (k = 9; g = 1.08; 95% confidence interval [CI] [0.82, 1.34]; p < .001). However, no significant differences were found when group therapy was compared with alternative treatments (k = 6; g = 0.18; 95% CI [−0.14, 0.49]; p = .264). This review adds support for group psychotherapy (primarily cognitive–behavioral therapy, CBT) being one of several treatment options for PD. Results are discussed with respect to the positive effects of group therapy and the limits of group therapy when compared with alternative treatments such as individual therapy or pharmacotherapy. (PsycINFO Database Record (c) 2017 APA, all rights reserved)
  • Testing the team identification–social psychological health model: Mediational relationships among team identification, sport fandom, sense of belonging, and meaning in life. 20170529
    The team identification–social psychological health model predicts that sport team identification leads to social connections which, in turn, result in well-being. This pattern of effects was tested in a sample of 380 college students completing measures of sport fandom, identification with their university’s men’s basketball team, sense of belonging, and meaning in life. Mediation analyses and structural equation modeling indicated that, as expected, belonging mediated the relationship between identification and meaning in life. In addition, belonging also mediated the relationship between fandom and meaning in life. Discussion includes the importance of the well-being consequences of social ties gained through sport fandom, including connections that are more casual in nature. (PsycINFO Database Record (c) 2017 APA, all rights reserved)
  • A multilevel analysis of person–group regulatory-mode complementarity: The moderating role of group–task interdependence. 20170529
    Regulatory mode is a psychological construct pertaining to the self-regulatory orientation of individuals or teams engaged in goal pursuit. Locomotion, the desire for continuous progress or movement in goal pursuit, and assessment, the desire to critically evaluate and compare among goals and means, are distinct regulatory modes. However, they are also complementary, in that both locomotion and assessment are necessary for effective goal pursuit. In the present research, we sought to demonstrate that cross-level regulatory-mode complementarity (i.e., the combination of individual locomotion and group assessment, or individual assessment and group locomotion) can positively impact individual-level performance on goal-relevant tasks. More important, we aimed to show that this effect is moderated by task interdependence, such that the complementarity effect occurs only in the high-interdependence condition. We recruited employees (N = 489) from pre-existing work teams (n = 89) in organizations in Italy, and obtained (a) employees’ individual-level scores on the Regulatory Mode Scale (Kruglanski et al., 2000), (b) employees’ ratings of task interdependence, and (c) employees’ work performance. The results generally supported our hypotheses regarding the interaction between task interdependence and cross-level regulatory-mode complementarity on individual performance. Limitations and recommendations for future research are discussed. (PsycINFO Database Record (c) 2017 APA, all rights reserved)

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