DAAGxtras (version 0.7-6)

MaskedPriming: Masked Repetition Priming Data

Description

Words (words), preceded by an invisible identical or unrelated prime, or non-words, were flashed in front of subjects (id). The time taken by the subject to identify the letter combination as not word or word was then measured.

Usage

data(MaskedPriming)

source

Kliegl et al (2008)

Details

This combines the datasets from Bodner and Masson (1997, Exp 1 and Exp 2a) and Kinoshita (2006, Exp 2).

References

Bodner, G.E., and Masson, M. E. J. 1997 Masked repetition priming of words and nonwords: Evidence for a nonlexical basis for priming. Journal of Memory and Language 37, 268-293.

Kinoshita, S. 2006 Additive and interactive effects of word frequency and masked repetition in the lexical decision task. Psychonomic Bulletin & Review 13, 668-673.

Kliegl, R., Masson, M. E. J. and Richter, E. M. 2008. A linear mixed-effects model analysis of masked repetition priming. Manuscript.

Examples

data(MaskedPriming)
str(MaskedPriming)
plot(MaskedPriming[sample(6381,100), 7:10])
library(lme4)
cmat <- matrix(c(-1,  1,  0,
	             -1, -1,  2),  3,  2, 
	             dimnames=list(c("BM1", "BM2", "SK"), 
	                              c(".BM1-2", ".BM-SK")))
m0 <- lmer(rrt ~ p*f*e + (1 | subjects) + (0 + p | subjects) +
           (0 + f | subjects) + (1 | words), contrasts=list(e=cmat),
           data=d)
m1p <- lmer(rrt ~ p*f*e + (p | subjects) + (0+f | subjects) + (1 | words), 
                 contrasts=list(e=cmat)
m2 <- lmer(rrt ~ p*f*e + (p + f | subjects) + (1 | words), 
                 contrasts=list(e=cmat), data=d)
anova(m0, m1p, m2)