In this article a training programme is described for improving interviewing skills of students in the fifth year (junior clerkship) of the medical curriculum. Two interviews with a 'simulated mother' form the core of the programme. The interviews are immediately followed by a feedback session in which the simulated mother discusses the strong and the weak points of the interview. In the feedback she makes use of a checklist with relevant points concerning the content and the process of the interview. Where required the comments are substantiated with fragments of the videotaped interview. In a 2-hour theoretical session, students are told how to prepare themselves for the interview. The learning effects of the training programme using simulated mothers were evaluated in order to determine: (1) the subsequent improvement in interviewing skills; and (2) the effect of the feedback session. It was found that students' interviewing skills improved significantly on the content and the process aspects after one or two interviews. In addition the feedback sessions proved very helpful, although no significant differences were revealed, when comparing the mean group scores for students who had had feedback sessions with the scores for those who had not. The results also revealed that two interviews were insufficient and that the training should include at least three interviews. This was borne out by the large number of students who asked for more interviews with simulated mothers. In the training programme the simulated mothers perform two functions: (1) playing the role of the mother of a sick child; and (2) giving feedback to students regarding their interviewing skills.(ABSTRACT TRUNCATED AT 250 WORDS)