Relational Reasoning as a Mediatior of the Relationship Between Working Memory Capacity and Fluid Intelligence
Zeidler, J., Schönthal, V.
Recent findings suggest that working memory capacity (WMC) can be operationalized as binding (WMB). Additionally, a current study found a complete explanation of the variance in fluid intelligence (Gf) by relational reasoning (RR). Conceptual similarities between WMB and RR make them promising candidates to explain the high correlations that are universally found between WMC and Gf. The current study compared (N=54) tasks on RR, WMB and gf in an online, within subject design. As expected, individual correlations between the three factors (RR, WMB & Gf) were strong. A SEM mediation model of the results indicates a full mediation of the relationship between WMB and Gf by RR (indirect effect: β=0.4). These findings reinforce the idea that the ability to assess relations between stimuli based on a simple given rule (RR) might be sufficient to explain the relationship between WMC and Gf.
Binding, Fluid Intelligence, Relational Reasoning, Working Memory