A Diffusion Model Explanation of the Worst Performance Rule for Reaction Time and IQ

Autor/inn/en	Ratcliff, Roger; Schmiedek, Florian; McKoon, Gail
Titel	A Diffusion Model Explanation of the Worst Performance Rule for Reaction Time and IQ
Quelle	In: Intelligence, 36 (2008) 1, S.10-17 (8 Seiten) PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0160-2896
DOI	10.1016/j.intell.2006.12.002
Schlagwörter	Reaction Time; Intelligence Quotient; Correlation; Models; Memory; Reliability + Suchen Sie Ihr Suchwort? Reaktionsvermögen; Intelligenzquotient; Korrelation; Analogiemodell; Gedächtnis; Reliabilität
Abstract	The worst performance rule for cognitive tasks [Coyle, T.R. (2003). IQ, the worst performance rule, and Spearman's law: A reanalysis and extension. "Intelligence," 31, 567-587] in which reaction time is measured is the result that IQ scores correlate better with longer (i.e., 0.7 and 0.9 quantile) reaction times than shorter (i.e., 0.1 and 0.3 quantile) reaction times. We show that this pattern of correlations can be predicted by the diffusion model [Ratcliff, R. (1978). A theory of memory retrieval. "Psychological Review," 85, 59-108], in two ways: either assuming that the rate of accumulation of information toward a decision is higher for higher IQ subjects or assuming that the criterial amounts of information they require before a decision are lower. Importantly, the model explains both reaction times and accuracy, so the two possibilities can be distinguished. (Author).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10