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  • Title: Does collaboration help or hurt recall? The answer depends on working memory capacity.
    Author: Hood AVB, Whillock SR, Meade ML, Hutchison KA.
    Journal: J Exp Psychol Learn Mem Cogn; 2023 Mar; 49(3):350-370. PubMed ID: 36006719.
    Abstract:
    Collaborative inhibition (reduced recall in collaborative vs. nominal groups) is a robust phenomenon. However, it is possible that not everyone is as susceptible to collaborative inhibition, such as those higher in working memory capacity (WMC). In the current study, we examined the relationship between WMC and collaborative inhibition. Participants completed three shortened span tasks (automated operation span, automated reading span, symmetry span). They then viewed categorized word lists individually and then recalled the word lists alone or with a partner (Test 1), followed by an individual recall (Test 2). For correct recall, collaborative inhibition was greater among lower WMC individuals, and they showed no post collaborative benefits. Only higher WMC individuals benefited from prior collaboration. For false recall, higher WMC individuals had less false recall on Tests 1 and 2, and collaboration reduced errors on Test 1 for both lower- and higher WMC individuals. There were no lasting effects of collaboration on Test 2 errors. Furthermore, partner WMC appeared to influence recall, although this tentative finding is based on a smaller sample size. Specifically, on Test 2, participants had less false recall when their partner was higher in WMC and greater correct recall when both they and their partner were higher in WMC. We conclude that collaboration is relatively more harmful for lower WMC individuals and more beneficial for higher WMC individuals. These results inform theories of collaborative inhibition by identifying attentional control and WMC as mechanisms that moderate the magnitude of the effect. (PsycInfo Database Record (c) 2023 APA, all rights reserved).
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