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Coping with participant heterogeneity in dichotomous responses
Author(s) -
Meilijson Isaac,
Meilijson Sara
Publication year - 2009
Publication title -
statistics in medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.996
H-Index - 183
eISSN - 1097-0258
pISSN - 0277-6715
DOI - 10.1002/sim.3597
Subject(s) - spurious relationship , confounding , psychology , statistics , clinical psychology , econometrics , mathematics
Participant heterogeneity induces spurious dependence that may obscure dependence patterns displayed by a covariance matrix. A parsimonious method is proposed for the reduction of this confounding effect. The method is applied to dichotomous behavioral response data of participants diagnosed with schizophrenia, as assessed by the Pragmatic Protocol ( J. Speech Hear. Disord. 1987; 52 :105–119). Copyright © 2009 John Wiley & Sons, Ltd.