Article

An automated version of the Operation Span task

School of Psychology, Georgia Institute of Technology, Atlanta, Georgia 30332-0170, USA.
Behavior Research Methods (Impact Factor: 2.93). 09/2005; 37(3):498-505. DOI: 10.3758/BF03192720
Source: PubMed

ABSTRACT

We present an easy-to-administer and automated version of a popular working memory (WM) capacity task (operation span; Ospan) that is mouse driven, scores itself, and requires little intervention on the part of the experimenter. It is shown that this version of Ospan correlates well with other measures of WM capacity and has both good internal consistency (alpha = .78) and test-retest reliability (.83). In addition, the automated version of Ospan (Aospan) was shown to load on the same factor as two other WM measures. This WM capacity factor correlated with a factor composed of fluid abilities measures. The utility of the Aospan was further demonstrated by analyzing response times (RTs) that indicated that RT measures obtained in the task accounted for additional variance in predicting fluid abilities. Our results suggest that Aospan is a reliable and valid indicator of WM capacity that can be applied to a wide array of research domains.

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