Objective To revise the Chinese version of the sluggish cognitive tempo(SCT) Scale, and to test its reliability and validity,in order to provide a valid tool for assessing SCT. Methods Totally 1 735 students from two ordinary primary schools in Shanghai were randomly selected from April to December 2020, whose parents completed the questionnaire, including SCT scale, Attention Deficit Hyperactivity Disorder Diagnostic Scale-Parent Version(ADHDDS-P), Achenbach Child Behaviour Checklist (CBCL). Partly 266 students randomly selected from school samples in grades one to five were assessed with SCT scale to analyze the test-retest reliability 1 month later. And 106 patients diagnosed with the DSM-5 criteria of ADHD disorder from Shanghai Mental Health Center were tested by SCT and ADHDDS-P. Results The Cronbach′s α coefficient of the SCT scale was 0.920, and the test-retest coefficient was 0.85 (P<0.01). The consistency between the items and the total score ranged from 0.469 to 0.784(P<0.01). Exploratory factor analysis showed that SCT had 3 factors (KMO=0.946, P＜0.001), named daydreaming, tardiness and cognitive decline. Confirmatory factor analysis tested proved the three-factor model basically fit (χ2/df=7.739, RMSEA=0.084). The SCT total scores were positively correlated with ADHDDS-P total scores (r=0.753, P＜0.05), and the SCT scores were higher in children with ADHD(boys: t=13.77, girls: t=7.81, P＜0.001). Conclusions SCT scale is basically appropriate for Chinese because of its good validity and reliability. The three-factor model fits well proved by exploratory and confirmatory factor analysis, so it could be used to assess sluggish cognitive tempo symptoms for children.
Key words
sluggish cognitive tempo /
Scale /
reliability /
validity /
attention deficit hyperactivity disorder
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