Abstract
Poulton (1982) has criticized within-subject manipulations of the standard conditions for dual-task methodology. Two experiments compared between-versus within-subject designs employing lexical decisions. The results confirmed Poulton’s claim of asymmetry of transfer within repeated measure designs. Conclusions regarding attention allocation, therefore, are equivocal in comparison with independent groups designs.
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These data were presented at the 1990 Annual Meeting of the Psychonomic Society in New Orleans.
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Ferraro, F.R., Kellas, G. & Simpson, G.B. Failure to maintain equivalence of groups in cognitive research: Evidence from dual-task methodology. Bull. Psychon. Soc. 31, 301–303 (1993). https://doi.org/10.3758/BF03334935
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DOI: https://doi.org/10.3758/BF03334935