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Published on: October 3, 2018
Validation of the Chinese version of the autism spectrum knowledge scale general population version (ASKSG) with a
Xiaoying Zhong1, Mei He2, Lei Lei3
1Department of Nursing, Mianyang Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Mianyang, China.
Background:
The early detection and diagnosis of autism spectrum disorder (ASD) in children are a first step in determining follow-up assessments and personalized treatment plans. Parents play an extremely crucial role in children's development; therefore, it is essential to identify a valid and reliable instrument to evaluate the knowledge of parents about ASD. The aim of this study was to translate and determine the psychometric properties of the Autism Spectrum Knowledge Scale General Population Version (ASKSG) with a parent sample.
Design And Methods:
A cross-sectional study was conducted with 858 parents of children aged 0-14 years in China. The demographic characteristics form and ASKSG were used for data collection. The psychometric properties of the ASKSG were evaluated by examining reliability, exploratory factor analysis (EFA), categorical confirmatory factor analysis (CCFA), unidimensionality, person and item reliability, item fit and item difficulty, and item-person mapping.
Results:
The Cronbach's alpha coefficient of the ASKSG was 0.865. In terms of EFA, principal component analysis revealed a fixed number of five factors, explaining 41.642% of the total variance. For the CCFA, the structure of the thematically derived five-factor model was observed to be a marginal fit to the data. The eigenvalue was 31.00, with a variance of 62.7%. The person reliability was 0.85, and the person separation was 2.38. The item reliability was 1.00, and the item separation was 15.02. The infit and outfit statistical analysis fell within acceptable ranges from 0.75 to 1.35, and the item difficulty ranged from -2.43 to 2.44. An item-person map with excellent targeting would be symmetric along the vertical axis from more difficult endorsement at the top (question 1 and question 20) to easier endorsement at the bottom (question 1). Some items do appear to function differently across sexes, and they assess the latent trait unequally across both sexes.
Conclusions:
The Chinese version of the ASKSG is a reliable and valid tool for assessing knowledge of parents about ASD.
Practice Implications:
Chinese ASKSG now offers medical professionals and teachers a robust means of assessing parental knowledge about ASD. Therefore, professionals may use the scale to help them screen or identify parents who are in need of additional support or advice.
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