Confirmatory Factor Analysis of WAIS-IV in a Clinical Sample: Examining a Bi-Factor Model

Rachel Collinson; Stephen Evans; Miranda Wheeler; Don Brechin; Jenna Moffitt; Geoff Hill; Steven Muncer

doi:10.3390/jintelligence5010002

Confirmatory Factor Analysis of WAIS-IV in a Clinical Sample: Examining a Bi-Factor Model

J Intell. 2016 Dec 30;5(1):2. doi: 10.3390/jintelligence5010002.

Authors

Rachel Collinson¹, Stephen Evans², Miranda Wheeler³, Don Brechin⁴, Jenna Moffitt⁵, Geoff Hill⁶, Steven Muncer⁷

Affiliations

¹ Neuropsychology Department, James Cook University Hospital, South Tees Hospitals NHS Foundation Trust, Middlesbrough TS4 3BW, UK. r.collinson@nhs.net.
² Neuropsychology Department, James Cook University Hospital, South Tees Hospitals NHS Foundation Trust, Middlesbrough TS4 3BW, UK. Stephen.Evans@stees.nhs.uk.
³ Neuropsychology Department, James Cook University Hospital, South Tees Hospitals NHS Foundation Trust, Middlesbrough TS4 3BW, UK. Miranda.Wheeler@stees.nhs.uk.
⁴ Neuropsychology Department, James Cook University Hospital, South Tees Hospitals NHS Foundation Trust, Middlesbrough TS4 3BW, UK. Donald.Brechin@stees.nhs.uk.
⁵ Neuropsychology Department, James Cook University Hospital, South Tees Hospitals NHS Foundation Trust, Middlesbrough TS4 3BW, UK. Jenna.Moffitt@stees.nhs.uk.
⁶ Neuropsychology Department, James Cook University Hospital, South Tees Hospitals NHS Foundation Trust, Middlesbrough TS4 3BW, UK. Geoffrey.Hill@stees.nhs.uk.
⁷ Clinical Psychology, Teesside University, Middlesbrough TS1 3BX, UK. s.muncerl@tees.ac.uk.

Abstract

There have been a number of studies that have examined the factor structure of the Wechsler Adult Intelligence Scale IV (WAIS-IV) using the standardization sample. In this study, we investigate its factor structure on a clinical neuropsychology sample of mixed aetiology. Correlated factor, higher-order and bi-factor models are all tested. Overall, the results suggest that the WAIS-IV will be suitable for use with this population.

Keywords: WAIS; bi-factor model; clinical sample; confirmatory factor analysis.