Psychometric properties of the Chinese Version of the Infant/Toddler Sensory Profile
Date Issued
2009
Date
2009
Author(s)
Chien-Ying Yang
Abstract
Objectives: The aim of the study was to develop a Chinese version of the Infant Toddler Sensory Profile (ITSP-C) and investigate its psychometric properties when used in Taiwanese children. Methods: First, the ITSP was translated and cross-culturally adapted into Chinese, including subscales for children ages 0-6 months and 7-36 months. The participants consisted of three cohorts: 367 typically developing infants ages 0 to 6 months (mean age = 3.44 months, SD = 1.82), 677 toddlers ages 7 to 36 months (mean age = 22.33 months, SD = 8.15), and 43 children with developmental disabilities, including developmental delays and Autism (mean age = 28.4 months, SD = 6.7). Parents of all the children completed the ITSP-C. Internal consistency was determined using all the typically developing infants and toddlers. Test-retest reliability was examined using 30 children with developmental disabilities (mean age = 30.23 months, SD = 5.78) in a 2-3 week interval. Construct validity was examined using confirmatory factor analysis (CFA) to assess if the four-factor model of the original ITSP was applicable to Taiwanese data. To verify discriminative validity, the ITSP-C scores of the children with developmental disabilities were compared with those of the normally developing children using logistic regression analysis. Results: Internal consistency was poor to acceptable for children ages birth to 6 months (Cronbach’s α = 0.42-0.75), and acceptable to good for children ages 7 to 36 months (Cronbach’s α = 0.53-0.87). For the 7 to 36 month subscale, test-retest reliability was good for the total scores (ICC = 0.94), and acceptable to good for each section and each quadrant scores (ICC = 0.69-0.91), except the visual processing section scores (ICC = 0.56). The results of the CFA provided support for a four-factor model both for the 0-6 months subscale (RMSEA = 0.05, SRMR = 0.08, CFI = 0.93 and NNFI = 0.92) and the 7-36 months subscale (RMSEA = 0.04, SRMR = 0.06, CFI = 0.95 and NNFI = 0.94). Logistic regression analysis demonstrated that the ITSP-C were able to discriminate between children with developmental disabilities and normally developing children. Conclusions: The results of the present study supported the preliminary psychometric properties of the ITSP-C. That is, the ITSP-C has acceptable reliability and validity when used in Taiwanese children. However, only the test-retest reliability and discriminant validity of the 7-36 month scale assessed for children in this age range were most often referred to clinics in Taiwan. Thus, additional studies are needed to examine the test-retest reliability and discriminant validity of the 0-6 month subscale in order to establish its utility in both clinical and research settings.
Subjects
sensory processing
sensory modulation
sensory integration
sensory processing disorders
pediatric occupational therapy
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