Background
Small group learning sessions are used in pharmacology at the KIST Medical College, Lalitpur, Nepal. Feedback about student behaviours that enhance and hinder small group effectiveness was obtained. This will help us improve the small group sessions and will also be useful to educators using small groups in other medical schools.
Method 
The small groups were self-managing with a group leader, time-keeper, recorder and presenter. Small group effectiveness was measured using the Tutorial Group Effectiveness Instrument (TGEI) developed by Singaram and co-authors.  The instrument was administered in June 2010 and key findings obtained were shared with students and facilitators. The instrument was administered again in August. The mean cognitive, motivational, demotivational and overall scores were compared among different categories of respondents in June and August. Scores were also compared between June and August 2010.  
Results
A total of 89 students participated in the study in June and 88 in August 2010. In June, females rated overall group productivity higher compared to males. The cognitive and motivational scores were higher in August 2010 while the demotivational score was lower.
Conclusion
The small group effectiveness was higher in August after the educational intervention which utilised feedback about problems observed, theoretical considerations of effective small groups and how this information can be applied in practice.