Article

This study investigated the validity of sensory systems as distinct measurable
constructs as part of a larger project examining Ayres's theory of sensory
integration. Confirmatory factor analysis (CFA) was conducted to test whether
sensory questionnaire items represent distinct sensory system constructs. Data
were obtained from clinical records of two age groups, 2- to 5-yr-olds (n = 231)
and 6- to 10-yr-olds (n = 223). With each group, we tested several CFA models for
goodness of fit with the data. The accepted model was identical for each group
and indicated that tactile, vestibular-proprioceptive, visual, and auditory
systems form distinct, valid factors that are not age dependent. In contrast,
alternative models that grouped items according to sensory processing problems
(e.g., over- or underresponsiveness within or across sensory systems) did not
yield valid factors. Results indicate that distinct sensory system constructs can
be measured validly using questionnaire data.
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Langue : ANGLAIS