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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/13246

Title: Development and initial validation of the Preschool Imitation and Praxis Scale (PIPS)
Authors: Vanvuchelen, Marleen
Roeyers, Herbert
De Weerdt, Willy
Issue Date: 2011
Citation: Research in Autism Spectrum Disorders, 5 (1), p. 463-473
Abstract: The goal of this study was to develop and subsequently evaluate the internal construct and criterion-related validity of the Preschool Imitation and Praxis Scale (PIPS). Different task characteristics were selected considered to be important as unravelled in research in apraxic adults to tap a broad range of possible imitation mechanisms. Participants included 498 children without disabilities (1–4.9 years) and 47 children with autism spectrum disorders (ASD) (1.9–4.5 years). Exploratory factor analysis disclosed 4 dimensions in the scale, labelled: goal directed versus non-goal directed procedural imitation and single versus sequential bodily imitation. Internal consistency for the PIPS scale (alpha = .97) and subscales was high (alpha ranged from .79 to .96). In both samples, the PIPS scale score was strongly related to age (r = .78, respectively r = .56). Significant relationships between the PIPS score and mental, language, motor ages in the ASD sample supported criterion-related validity (r ranged from .59 to .74). The PIPS appears to have fundamentally sound psychometric characteristics, although more research is needed.
URI: http://hdl.handle.net/1942/13246
DOI: 10.1016/j.rasd.2010.06.010
ISSN: 1750-9467
Category: A1
Type: Journal Contribution
Appears in Collections: Research publications

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