Study design
throat ache, tonsillitis
DISEASE, TONSILLITIS
The study was set up as a 2x2x2 between- and within-subjects cluster-randomised control trial. Participating students were clustered into groups, and these groups were randomly assigned to one of four conditions based on case and order. The two paper cases as between factors were a common disease in typical presentation (tonsillitis with throat ache and swollen red tonsils covered by a white exudate = case 1 [the case was adapted from a case-based learning sample from our university]) and a common disease in atypical presentation [Design of the experiment and subsequent grouping. Groups A, B, C, and D present the four conditions based on the between factor case (typical presentation vs. atypical presentation) and the between factor order (CDSS first or conventional method first). Groups A and B solved case 1 in the opposite order of task and groups C and D solved case 2 correspondinglyWe calculated the sample size required for our study using G*Power 3.1 [