Table 1.
Quality assessment of six studies evaluating effectiveness of problem based learning in continuing medical education
Study
Scores for quality criteria
*
Total score
Quality of study
Randomised assignment to group?
Follow up sufficiently long and complete?
Intention to treat analysis?
Participants and observers blinded?
Groups similar at start?
Chan et al 1999
15
10
5
10
0
10
35
High
Heale et al 1988
16
5
8
0
0
0
13
Low
Doucet et al 1998
17
5
8
10
0
5
28
High
Benjamin et al 1999
18
5
8
10
0
0
23
Low
Moran et al 1996
19
0
8
10
0
0
18
Low
Premi et al 1994
20
0
8
10
0
0
18
Low
*
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 .
25 indicate high quality, and scores <25
indicate low quality .