Reliability and validity of the Polish version of Communication and Symbolic Behaviour Scales-Developmental Profile - Infant-Toddler Checklist

• Published in: Research in autism spectrum disorders Vol. 117; p. 102454
• Main Authors: Sobieski, Mateusz, Wrona, Sylwia, Flakus, Maria, Pierchała, Kamila, Sobieska, Aleksandra, Podgórska, Katarzyna, Wołowicz, Anna, Sekułowicz, Małgorzata, Bujnowska-Fedak, Maria Magdalena
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.09.2024
• Subjects: Autism spectrum disorder; Diagnostic screening programs; Early diagnosis; Primary health care; Validation study; Early diagnosis; Diagnostic screening programs; Primary health care; Autism spectrum disorder; Validation study
• ISSN: 1750-9467
• DOI: 10.1016/j.rasd.2024.102454

Early diagnosis of autism spectrum disorders allows to start a therapy tailored to the child - the earlier it happens, the better the results. This study marked a preliminary attempt to prepare culturally and linguistically adapted Polish version of the Communication and Symbolic Behavior Scales-Developmental Profile – Infant-Toddler Checklist (CSBS-DP ITC). The study was conducted among 1471 Polish parents of children from the general population aged 6 to 24 months, 490 of them participated in the follow-up. An additional 122 pairs of parents completed the questionnaire to determine reliability using the inter-rater method. The collected data were statistically processed to calculate the reliability and validity of the Polish version of the CSBS-DP ITC questionnaire. The results indicated a very good fit of the one-factor and three-factor models in confirmatory factor analysis. Both one-factor and three-factor model showed satisfactory fit in both sex subsamples. The total score of CSBS-DP ITC demonstrated satisfactory internal consistency, Cronbach's α = .92 and McDonald’s ω = .92. In test-retest all the correlation coefficients between the first and second measurements were above.70, proving a satisfactory level of stability. The Polish version of the CSBS-DP-ITC is a reliable tool for the early screening of autism spectrum disorder, but further studies on sensitivity and specificity are essential. •So far, no ASD screening diagnostic method has been developed in Poland.•The aim of the study is to create a Polish version of the CSBS-DP ITC questionnaire.•The Polish version of the CSBS-DP ITC has high reliability and stability.