Article

We examined the psychometric properties (internal consistency, concurrent
criterion validity, and known-group validity) of the Loewenstein Occupational
Therapy Cognitive Assessment (LOTCA) in people with intellectual disabilities. A
total of 111 people with intellectual disabilities and 19 people with no
disabilities were included. We used Cronbach's alpha, Spearman's rho, the
Kruskal-Wallis test, and one-way analysis of variance for analysis, where
appropriate. Results showed good internal consistency on Orientation, Visual
Perception, Spatial Perception, Visuomotor Organization, and Thinking Operations
subscales (Cronbach's alphas = .82, .74, .76, .86, and .80, respectively), but
not on the Motor Praxis subscale (alpha = .48). We found significant correlations
between participants' performance on the Pictorial IQ test and disability level
and scores on the LOTCA. The known-group validity of the LOTCA in people with
intellectual disabilities was satisfactory. We concluded that the LOTCA is a
suitable instrument for measuring cognitive abilities and visual perception in
people with intellectual disabilities.

Langue : ANGLAIS