Does collaboration help or hurt recall? The answer depends on working memory capacity

Area of Science:

• Cognitive Psychology
• Social Psychology

Background:

• Collaborative inhibition is a well-documented phenomenon where group recall is less effective than individual recall.
• Individual differences, such as working memory capacity (WMC), may influence susceptibility to collaborative inhibition.

Purpose of the Study:

• To investigate the moderating role of working memory capacity (WMC) in collaborative inhibition.
• To determine if higher WMC individuals are less affected by or benefit from collaboration compared to lower WMC individuals.

Main Methods:

• Participants completed WMC tasks (automated operation span, automated reading span, symmetry span).
• Participants recalled word lists individually and then either alone or with a partner.
• Two recall tests were administered: one immediately after collaboration and one later.

Main Results:

• Collaborative inhibition was more pronounced in lower WMC individuals for correct recall.
• Higher WMC individuals showed benefits from prior collaboration, unlike lower WMC individuals.
• While collaboration reduced errors, higher WMC individuals generally exhibited less false recall.

Conclusions:

• Working memory capacity significantly moderates the effects of collaborative inhibition.
• Collaboration is more detrimental to recall for individuals with lower WMC and more beneficial for those with higher WMC.
• Attentional control and WMC are key mechanisms underlying collaborative inhibition effects.