Abstract
The Childhood Autism Rating Scale™, Second Edition (CARS™-2) and Social Responsiveness Scale™, Second Edition (SRS™-2) are two measures for identifying autism symptoms. The CARS™-2 has two versions: Standard (CARS-ST) and High-Functioning (CARS-HF). To better understand their properties, this study aimed to investigate: (1) the associations among the CARS-ST, CARS-HF and the SRS™-2, and (2) the severity consistency between the CARS-ST and the CARS-HF. A sample of 125 children with autism spectrum disorder was recruited (mean age: 80.98 months, SD = 16.08). Based on Verbal Comprehension Index (VCI), children were divided into two groups: low severity level of autism spectrum disorder (LSL-ASD: VCI ≥ 80) and high severity level of autism spectrum disorder (HSL-ASD: VCI < 80). All children were evaluated with the CARS-ST and the SRS™-2, and the HF group, with the CARS-HF as well. In the LSL group, the CARS-ST and the CARS-HF had high correlation (r = 0.852, p < .001). Both versions had small to moderate correlations with the SRS™-2 (r = 0.130–0.491). In the HSL group, no significant correlations were found between the CARS-ST and SRS™-2 (p > .05). The CARS-HF and the CARS-ST had low severity consistency (Kappa = 0.376, p < .01). The CARS-ST and the CARS-HF had high correlations but low severity consistency. Different correlation patterns were found between the CARS™-2 and the SRS™-2 in the LSL and HSL groups. The results should help clinicians better understand the properties of the measures and choose appropriate measures when assessing autism symptoms.
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The data that support the findings of this study are available from the corresponding author, [KLC], upon reasonable request.
Change history
28 October 2023
A Correction to this paper has been published: https://doi.org/10.1007/s00406-023-01703-w
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Acknowledgements
We thank all the participants in the study, and also the doctors and therapists in the hospitals for referral of the participants. The study was supported by the National Science and Technology Council, Taiwan, R.O.C. (MOST 111-2628-B-006-021).
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CYH: analysis of data, drafting the manuscript, reviewing and editing. KSC: conception, reviewing and editing; GYL: conception, reviewing editing; CHL: conception, reviewing and editing; KLC: conception and design of the study, acquisition and analysis of data, drafting the manuscript, reviewing and editing.
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The original online version of this article was revised: To correct the error in author name.
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Huang, CY., Chen, KS., Lee, KY. et al. Different autism measures targeting different severity levels in children with autism spectrum disorder. Eur Arch Psychiatry Clin Neurosci 274, 27–33 (2024). https://doi.org/10.1007/s00406-023-01673-z
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DOI: https://doi.org/10.1007/s00406-023-01673-z