Four raw datafiles contianing RT, accuracy data and demographics for 34 subjects, as well as manual-based difficulty constraints used in estimation of the Rasch model. These files are further analysed
The files consist of the dataset and analysis codes for the study " "Development and Evaluation of a Chinese Short-form of the Sleep-Related Behaviors Questionnaire in Hong Kong Chinese Adults using I
Relatively uninformative (Imax<0.20) or biased symptoms are displayed in bold font. All others are informative, unbiased symptoms and were retained for further analysis. aIRT IIF analysis was performe
