WAIS-IV Seven-Subtest Short Form: Validity and Clinical Use in ă Schizophrenia

Ewa Bulzacka, John E. Meyers, Laurent Boyer (laurent.boyer@ens-lyon.fr), Tifenn Le Gloahec, Guillaume Fond (guillaume.fond@gmail.com), Andrei Szöke, Marion Leboyer (leboyer@im3.inserm.fr) and Franck Schürhoff (schurhof@ext.jussieu.fr)
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Laurent Boyer: C3M - Centre méditerranéen de médecine moléculaire - UNS - Université Nice Sophia Antipolis (1965 - 2019) - INSERM - Institut National de la Santé et de la Recherche Médicale - UniCA - Université Côte d'Azur
Guillaume Fond: INSERM U955, équipe 15 - Service de psychiatrie - AP-HP - Assistance publique - Hôpitaux de Paris (AP-HP) - Hôpital Henri Mondor - Hôpital Albert Chenevier - Réseau de coopération scientifique en santé mentale - Fondation FondaMental [Créteil] - IMRB - Institut Mondor de Recherche Biomédicale - INSERM - Institut National de la Santé et de la Recherche Médicale - UPEC UP12 - Université Paris-Est Créteil Val-de-Marne - Paris 12
Andrei Szöke: INSERM U955, équipe 15 - Service de psychiatrie - AP-HP - Assistance publique - Hôpitaux de Paris (AP-HP) - Hôpital Henri Mondor - Hôpital Albert Chenevier - Réseau de coopération scientifique en santé mentale - Fondation FondaMental [Créteil] - IMRB - Institut Mondor de Recherche Biomédicale - INSERM - Institut National de la Santé et de la Recherche Médicale - UPEC UP12 - Université Paris-Est Créteil Val-de-Marne - Paris 12, Pôle de Psychiatrie - AP-HP - Assistance publique - Hôpitaux de Paris (AP-HP) - Hôpital H. Mondor - A. Chenevier
Marion Leboyer: IMRB - Institut Mondor de Recherche Biomédicale - INSERM - Institut National de la Santé et de la Recherche Médicale - UPEC UP12 - Université Paris-Est Créteil Val-de-Marne - Paris 12, Fondation FondaMental [Créteil], IINS - Interdisciplinary Institute for Neuroscience / Institut interdisciplinaire de neurosciences [Bordeaux] - UB - Université de Bordeaux - CNRS - Centre National de la Recherche Scientifique
Franck Schürhoff: Fondation FondaMental [Créteil], IMRB - Institut Mondor de Recherche Biomédicale - INSERM - Institut National de la Santé et de la Recherche Médicale - UPEC UP12 - Université Paris-Est Créteil Val-de-Marne - Paris 12, Pôle de Psychiatrie et d’Addictologie - Hôpitaux Universitaires Henri-Mondor

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Abstract: Objective: This study assesses the psychometric properties of Ward's ă seven-subtest short form (SF) for WAIS-IV in a sample of adults with ă schizophrenia (SZ) and schizoaffective disorder. ă Method: Seventy patients diagnosed with schizophrenia or schizoaffective ă disorder were administered the full version of the WAIS-IV. Four ă different versions of the Ward's SF were then calculated. The subtests ă used were: Similarities, Digit Span, Arithmetic, Information, Coding, ă Picture Completion, and Block Design (BD version) or Matrix Reasoning ă (MR version). Prorated and regression-based formulae were assessed for ă each version. ă Results: The actual and estimated factorial indexes reflected the ă typical pattern observed in schizophrenia. The four SFs correlated ă significantly with their full-version counterparts, but the Perceptual ă Reasoning Index (PRI) correlated below the acceptance threshold for all ă four versions. The regression-derived estimates showed larger ă differences compared to the full form. The four forms revealed ă comparable but generally low clinical category agreement rates for ă factor indexes. All SFs showed an acceptable reliability, but they were ă not correlated with clinical outcomes. ă Conclusions: The WAIS-IV SF offers a good estimate of WAIS-IV ă intelligence quotient, which is consistent with previous results. ă Although the overall scores are comparable between the four versions, ă the prorated forms provided a better estimation of almost all indexes. ă MR can be used as an alternative for BD without substantially changing ă the psychometric properties of the SF. However, we recommend a cautious ă use of these abbreviated forms when it is necessary to estimate the ă factor index scores, especially PRI, and Processing Speed Index.

Keywords: quality (search for similar items in EconPapers)
Date: 2016-12
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Published in Archives of Clinical Neuropsychology, 2016, 31 (8), pp.915-925. ⟨10.1093/arclin/acw063⟩

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Persistent link: https://EconPapers.repec.org/RePEc:hal:journl:hal-01482379

DOI: 10.1093/arclin/acw063

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