Since the meta-analysis by De Dreu and Weingart (2003b) on the effects of intragroup conflict on group outcomes, more than 80 new empirical studies of conflict have been conducted, often investigating more complex, moderated relationships between conflict and group outcomes, as well as new types of intragroup conflict, such as process conflict. To explore the trends in this new body of literature, we conducted a meta-analysis of 116 empirical studies of intragroup conflict (n = 8,880 groups) and its relationship with group outcomes. To address the heterogeneity across the studies included in the meta-analysis, we also investigated a number of moderating variables. Stable negative relationships were found between relationship and process conflict and group outcomes. In contrast to the results of De Dreu and Weingart, we did not find a strong and negative association between task conflict and group performance. Analyses of main effects as well as moderator analyses revealed a more complex picture. Task conflict and group performance were more positively related among studies where the association between task and relationship conflict was relatively weak, in studies conducted among top management teams rather than non-top management teams, and in studies where performance was measured in terms of financial performance or decision quality rather than overall performance.
Empirical evidence suggests that power elicits a generic tendency to disregard advice. We examined different responses power holders may show in their tendency to take advice depending on the construal of power. We report a field study and an experiment among managers and other powerful professionals (Studies 1 and 2) and an experiment in which participants were assigned to a powerful role (Study 3). Across studies, we found a higher tendency to take advice among those who construed their power as a responsibility rather than as an opportunity. This effect of the construal of power on advice taking was mediated by a heightened perceived value of advice, not by decreased confidence in own judgments or sense of power. Accordingly, the increase in advice taking when power was construed as a responsibility was observed regardless of whether the advice came from subordinates (Study 1), expert advisors (Study 2), or a less powerful teammate (Study 3). This highlights the relevance of considering how power holders construe their power in order to understand their tendency to take advice from others.
This study examined how the outcomes of joint decision making relate to cardiovascular reactions when group members disagree about the decision to be taken. A conflict was experimentally induced during a joint decision-making task, while cardiovascular markers of challenge/threat motivational states were assessed following the biopsychosocial model of challenge and threat (BPSM; J. Blascovich, 2008). Results show that individuals were less likely to adjust their initially preferred decision alternative the more they exhibited a cardiovascular pattern indicative of threat (i.e., relatively high total peripheral resistance and low cardiac output) compared to challenge. This finding extends the BPSM by showing a link between threat and rigidity, and emphasizes the importance of psychophysiological processes for studying intragroup conflict and decision making.
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