publication . Article . 2011

Measurement invariance in the assessment of people with an intellectual disability

MacLean, Hannah; McKenzie, Karen; Kidd, Gill; Murray, Aja Louise; Schwannauer, Matthias;
Open Access
  • Published: 01 May 2011 Journal: Research in Developmental Disabilities, volume 32, pages 1,081-1,085 (issn: 0891-4222, Copyright policy)
  • Publisher: Elsevier BV
  • Country: United Kingdom
Intellectual assessment is central to the process of diagnosing an intellectual disability and the assessment process needs to be valid and reliable. One fundamental aspect of validity is that of measurement invariance, i.e. that the assessment measures the same thing in different populations. There are reasons to believe that measurement invariance of the Wechsler scales may not hold for people with an intellectual disability. Many of the issues which may influence factorial invariance are common to all versions of the scales. The present study, therefore, explored the factorial validity of the WAIS-III as used with people with an intellectual disability. Confi...
free text keywords: Developmental and Educational Psychology, Clinical Psychology, Measurement invariance, Goodness of fit, Confirmatory factor analysis, Developmental psychology, Test validity, Factorial validity, Wechsler Adult Intelligence Scale, Psychology, Factorial invariance, Intellectual disability, medicine.disease, medicine, Social psychology, C800
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Jensen, A. R. (2003). Regularities in Spearman's law of diminishing returns. doi: DOI: 10.1016/S0160-2896(01)00094-0. Intelligence, 31(2), 95-105.

Jones, J, Schaik, P. van. & Witts, P. (2006). The factor structure of the WAIS-III in persons with low IQ. British Journal of Clinical Psychology, 45 (2), 145-152.

Kaufman, A.S. & Lichtenberger, E.O. (1999). Essentials of WAIS III Assessment. New York: John Wiley & Sons.

Kaufman, A.S. (2000). Two and three factor solutions of the WAIS-III. Assessment, 8(3), 267-280.

Kline, P. (2000). A Psychometrics Primer. London: Free Association Books.

Lawley, D.N. & Maxwell, A.E. (1971). Factor analysis as a statistical method. London: Butterworth and Co.

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