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Home Research Topics Other Experiments and Analyses Kliegl et al. (2010, VisualCognition). A linear mixed model analysis of masked repetition priming

Kliegl et al. (2010, VisualCognition). A linear mixed model analysis of masked repetition priming

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Kliegl, R., Masson, M.E.J., & Richter, E.M. (2010). A linear mixed model analysis of masked repetition priming. Visual Cognition, 18, 655-681.

Abstract. We examined individual differences in masked repetition priming by re-analyzing item-level response-time  (RT) data from three experiments.  Using a linear mixed model (LMM) with subjects and items specified as  crossed random factors, the originally reported priming and word-frequency effects were recovered. In the  same LMM, we estimated parameters describing the distributions of these effects across subjects. Subjects’  frequency and priming effects correlated positively with each other and negatively with mean RT. These  correlation estimates, however, emerged only with a reciprocal transformation of RT (i.e., -1/RT), justified on  the basis of distributional analyses. Different correlations, some with opposite sign, were obtained (1) for  untransformed or logarithmic RTs or (2) when correlations were computed using within-subject analyses. We  discuss the relevance of the new results for accounts of masked priming, implications of applying RT  transformations, and the use of LMMs as a tool for the joint analysis of experimental effects and associated  individual differences.

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Last Updated on Saturday, 21 December 2013 18:35  

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