Effect of teaching on scores for interpretation of spirometry reports for each teaching format. Data were expressed as percentages of the maximum possible score for spirometry questions before and after teaching and are illustrated as medians bisecting the 25 and 75% percentiles and the limits of the range. There were no significant differences in performance between groups prior to teaching. All groups showed a significant improvement in performance after teaching (*: P < 0.01 in all cases). After teaching, students who had experienced the Web-based package performed significantly better than those who had experienced the tutor-lead, interactive teaching (†: P = 0.041).