Although research on Theory-of-Mind (ToM) is often based on single task measurements, more comprehensive instruments result in a better understanding of ToM development. The ToM Storybooks is a new instrument measuring basic ToM-functioning and associated aspects. There are 34 tasks, tapping various emotions, beliefs, desires and mental-physical distinctions. Four studies on the validity and reliability of the test are presented, in typically developing children (n = 324, 3-12 years) and children with PDD-NOS (n = 30). The ToM Storybooks have good psychometric qualities. A component analysis reveals five components corresponding with the underlying theoretical constructs. The internal consistency, test-retest reliability, inter-rater reliability, construct validity and convergent validity are good. The ToM Storybooks can be used in research as well as in clinical settings. © 2008 The Author(s).
CITATION STYLE
Blijd-Hoogewys, E. M. A., Van Geert, P. L. C., Serra, M., & Minderaa, R. B. (2008). Measuring theory of mind in children. Psychometric properties of the ToM Storybooks. Journal of Autism and Developmental Disorders, 38(10), 1907–1930. https://doi.org/10.1007/s10803-008-0585-3
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