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Titolo:
A process-oriented approach for averting confounds resulting from general performance deficiencies in schizophrenia
Autore:
Knight, RA; Silverstein, SM;
Indirizzi:
Brandeis Univ, Dept Psychol, Waltham, MA 02454 USA Brandeis Univ Waltham MA USA 02454 v, Dept Psychol, Waltham, MA 02454 USA Cornell Univ, Weill Med Coll, Dept Psychiat, Ithaca, NY 14853 USA Cornell Univ Ithaca NY USA 14853 oll, Dept Psychiat, Ithaca, NY 14853 USA
Titolo Testata:
JOURNAL OF ABNORMAL PSYCHOLOGY
fascicolo: 1, volume: 110, anno: 2001,
pagine: 15 - 30
SICI:
0021-843X(200102)110:1<15:APAFAC>2.0.ZU;2-X
Fonte:
ISI
Lingua:
ENG
Soggetto:
NEGATIVE-SYMPTOM SCHIZOPHRENIA; PRIMARY VISUAL-CORTEX; PERCEPTUAL ORGANIZATION; COGNITIVE DEFICITS; PSYCHIATRIC REHABILITATION; CORTICAL COMPUTATION; DIFFERENCE SCORES; THOUGHT-DISORDER; POSITIVE-SYMPTOM; CONTEXT;
Tipo documento:
Review
Natura:
Periodico
Settore Disciplinare:
Social & Behavioral Sciences
Citazioni:
123
Recensione:
Indirizzi per estratti:
Indirizzo: Knight, RA Brandeis Univ, Dept Psychol, MS 062, Waltham, MA 02454 USA Brandeis Univ MS 062 Waltham MA USA 02454 Waltham, MA 02454 USA
Citazione:
R.A. Knight e S.M. Silverstein, "A process-oriented approach for averting confounds resulting from general performance deficiencies in schizophrenia", J ABN PSYCH, 110(1), 2001, pp. 15-30

Abstract

The most pervasive and least well-addressed problem in cognitive studies of Schizophrenia is the propensity of schizophrenia patients to show inferior performance on a variety of cognitive tasks. Consequently, apparent specific cognitive abnormalities may actually reflect the interaction of task discriminating power with generalized deficit. L. J. Chapman and J. P. Chapman (1973a) suggested psychometric approaches for eliminating such artifactual group differences. Unfortunately, their solution neglects important issues of process specification and does not provide a viable strategy for process-oriented investigators, Psychometric remediation of artifactual Group X Task interactions inevitably confounds the processes being measured, resulting in theoretically ambiguous Findings. Moreover, evidence that changes inmeasurement reliability can both increase and decrease group discrimination challenges a basic underlying assumption of the Chapmans' matching solution. This article presents a process-oriented approach to solving this problem in schizophrenia research.

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Documento generato il 16/07/20 alle ore 06:43:27