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J. Intell. 2017, 5(2), 21; doi:10.3390/jintelligence5020021

Is the Correlation between Storage Capacity and Matrix Reasoning Driven by the Storage of Partial Solutions? A Pilot Study of an Experimental Approach

1
Individual Differences & Psychodiagnostics, Department of Psychology, Saarland University, Building A1 3, 66123 Saarbrücken, Germany
2
Brain & Cognition Unit, Department of Psychology, Saarland University, Building A2 4, 66123 Saarbrücken, Germany
*
Author to whom correspondence should be addressed.
Academic Editor: Paul De Boeck
Received: 31 December 2016 / Revised: 9 May 2017 / Accepted: 10 May 2017 / Published: 16 May 2017
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Abstract

Working memory capacity (WMC) and reasoning abilities—as assessed by figural matrices tests—are substantially correlated. It is controversially discussed whether this correlation is only caused by controlled attention or also by storage capacity. This study aims at investigating storage of partial solutions as a possible mechanism by which storage capacity may contribute to solving figural matrices tests. For this purpose, we analyzed how an experimental manipulation of storage demands changes the pattern of correlations between WMC and performance in a matrix task. We manipulated the storage demands by applying two test formats: one providing the externalization of partial solutions and one without the possibility of externalization. Storage capacity was assessed by different types of change detection tasks. We found substantial correlations between storage capacity and matrices test performance, but they were of comparable size for both test formats. We take this as evidence that the necessity to store partial solutions is not the limiting factor which causes the association between storage capacity and matrices test. It is discussed how this approach can be used to investigate alternative mechanisms by that storage may influence performance in matrices tests. View Full-Text
Keywords: fluid intelligence; matrices test; working memory; storage capacity; partial solutions fluid intelligence; matrices test; working memory; storage capacity; partial solutions
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MDPI and ACS Style

Domnick, F.; Zimmer, H.D.; Becker, N.; Spinath, F.M. Is the Correlation between Storage Capacity and Matrix Reasoning Driven by the Storage of Partial Solutions? A Pilot Study of an Experimental Approach. J. Intell. 2017, 5, 21.

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