Coping with participant heterogeneity in dichotomous responses

Isaac Meilijson, Sara Meilijson

Research output: Contribution to journalArticlepeer-review

Abstract

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).

Original languageEnglish
Pages (from-to)2042-2053
Number of pages12
JournalStatistics in Medicine
Volume28
Issue number15
DOIs
StatePublished - 10 Jul 2009

Keywords

  • Covariance
  • Pragmatics of language
  • Schizophrenia
  • Severity

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