Table 1.

Quality assessment of six studies evaluating effectiveness of problem based learning in continuing medical education

Scores for quality criteria*
StudyRandomised assignment to group?Follow up sufficiently long and complete?Intention to treat analysis?Participants and observers blinded?Groups similar at start?Total scoreQuality of study
Chan et al 1999151051001035High
Heale et al 1988165800013Low
Doucet et al 19981758100528High
Benjamin et al 19991858100023Low
Moran et al 19961908100018Low
Premi et al 19942008100018Low
  • * Each criterion has maximum score of 10, and maximum total score is 50.

  • † Total scores ≥25 indicate high quality, and scores ≤25 indicate low quality.