Journal article
Validity and reliability of the Dundee difficult times of the day scale in Chinese children and adolescents with attention-deficit/hyperactivity disorder
Yasong Du, Yi Zheng, Xiaoyan Ke, Linyan Su, David Coghill, Yun Chen, Yanlei Zhang, Zheng Yuan, Yan Cheng, Wendong Chen
JOURNAL OF COMPARATIVE EFFECTIVENESS RESEARCH | FUTURE MEDICINE LTD | Published : 2019
Abstract
METHODS: A cross-sectional study enrolled 200 children and adolescents with attention-deficit/hyperactivity disorder visiting four Chinese tertiary care psychiatric clinics to assess the validity and reliability of the Dundee difficult times of the day scale (D-DTODS), using the Weiss functional impairment rating scale for parents form (WFIRS-P) and the Swanson, Nolan and Pelham, version IV 26-item teacher and parent rating scale (SNAP-IV-26). RESULTS: The calculated Cronbach's-α for the D-DTODS total score was 0.793. The calculated Spearman's correlation coefficients for D-DTODS versus WFRIS-P and Swanson, Nolan and Pelham, version IV 26-item teacher and parent rating scale (SNAP-IV-26) wer..
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Funding Acknowledgements
This study was funded by Eli Lilly China. Y Du, X Ke, Y Zhen and L Su have received speaker honoraria from Eli Lilly China. W Chen is the founder of both Changsha Normin Medical Technology Ltd and Normin Health Consulting Ltd, which receive industry funds for health economics and outcomes research. Y Chen, Y Zhang, Y Cheng and Z Yuan are employees of Eli Lilly China. D Coghill has received honoraria or research support from Eli Lilly, Janssen-Cilag, Medice, Novartis and Shire and royalties from Oxford University Press. He developed the D-DTODS as an open-access instrument for which there is no charge, and did not receive any support and has nothing additional to declare for his contribution to this study. The authors have no other relevant affiliations or financial involvement with any organization or entity with a financial interest in or financial conflict with the subject matter or materials discussed in the manuscript apart from those disclosed.