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This study set out to test whether relevant prior knowledge would moderate a positive effect on academic achievement of elaboration during small-group discussion. In a 2 × 2 experimental design, 66 undergraduate students observed a video showing a small-group problem-based discussion about thunder and lightning. In the video, a teacher asked questions to the observing participants. Participants either elaborated by responding to these questions, or did not elaborate, but completed a distraction task after each question. They received either relevant or irrelevant prior knowledge before the discussion. After the discussion, all participants studied a text about thunder and lighting and completed immediate and delayed-recall tests for this text. Elaboration had no main effect on recall, but there was a significant interaction effect between relevant prior knowledge and elaboration. The results suggest that elaboration is helpful for students with more prior knowledge, but harmful for students with less prior knowledge.

Purpose: This study aims to investigate quality of feedback as offered by supervisor-assessors with varying levels of assessor expertise following assessment of performance in residency training in a health care setting. It furthermore investigates if and how different levels of assessor expertise influence feedback characteristics. Design/methodology/approach: Experienced (n = 18) and non-experienced (n = 16) supervisor-assessors with different levels of assessor expertise in general practice (GP) watched two videotapes, each presenting a trainee in a "real-life" patient encounter. After watching each videotape, participants documented performance ratings, wrote down narrative feedback comments and verbalized their feedback. Deductive content analysis of feedback protocols was used to explore quality of feedback. Between-group differences were assessed using qualitative-based quantitative analysis of feedback data. Findings: Overall, specificity and usefulness of both written and verbal feedback was limited. Differences in assessor expertise did not seem to affect feedback quality. Research limitations/implications: Results of the study are limited to a specific setting (GP) and assessment context. Further study in other settings and larger sample sizes may contribute to better understanding of the relation between assessor characteristics and feedback quality. Practical implications: Findings suggest that even with supervisor-assessors with varying levels of assessor expertise who are trained in performance assessment and the provision of performance feedback, high-quality feedback is not self-evident; coaching "on the job" of feedback providers and continuous evaluation of feedback processes in performance management systems is crucial. Instruments should facilitate provision of meaningful feedback in writing. Originality/value: The paper investigates quality of feedback immediately following assessment of performance, and links feedback quality to assessor expertise. Findings can contribute to improvement of performance management systems and assessments for developmental purposes. (Contains 2 tables and 2 figures.)

Little is known about the influence of language background in problem-based learning (PBL) tutorial groups on group processes and students' academic achievement. This study investigated the relationship between language background, secondary school score, tutorial group processes, and students' academic achievement in PBL. A validated tutorial group effectiveness questionnaire was administered to undergraduate medical students in a PBL curriculum at the Nelson R. Mandela School of Medicine (NRMSM) in South Africa. Although 58 percent of the students did not speak English as their first language, the tutorials were in English. Furthermore, secondary school scores differed strongly due to inadequate resources between secondary schools. A path analysis was conducted to test a causal model in which the two independent variables were English as the First Language (EFL) and secondary school scores. These variables were assumed to influence the process variables (cognitive, motivational, and demotivational group processes). Input and process variables were assumed to influence the two output variables, being overall group productivity and students' academic achievement. All data were analyzed at the individual student level (N = 387). A very good model fit was found (CMIN/DF = 0.68, GFI = 1.00, TLI = 1.02, CFI = 1.00, RMSEA = 0.00). EFL and secondary school scores positively affected students' academic achievement (respectively beta = 0.24 and beta = 0.16). EFL negatively affected motivational group processes (beta = -0.22). Cognitive group processes positively influenced overall group productivity (beta = 0.31) and so did motivational group processes (beta = 0.27). Demotivational group processes negatively predicted academic achievement and overall group productivity (beta = -0.15, and beta = -0.25). The model resulted in an R-square of 0.15 and 0.45 for academic achievement and overall group productivity, respectively. EFL and secondary school scores had a positive effect on academic achievement. Cognitive and motivational group processes had a positive effect on overall group productivity, while EFL negatively impacted motivational group processes. We recommend English language development courses to be formally included into curricula to enhance student learning.

Seventy students participated in an experiment to measure the effects of either providing explanations or listening during small group discussions on recall of related subject-matter studied after the discussion. They watched a video of a small group discussing a problem. In the first experimental condition, the video was stopped at various points in time, enabling the participants to verbally respond to the discussion. In the second condition, they listened to the same discussion, without contributing. In the control condition, they listened to a discussion that was not related to the subject-matter subsequently studied. After the discussion, all participants studied a text and answered questions that tested their recall of information from this text. No immediate differences in recall were found. One month later, participants who had actively engaged in explaining remembered more from the text. The conclusion appears justified that actively providing explanations during a discussion positively affects long-term memory. (Contains 2 figures and 1 table.)

[english] Medical education research has changed over the years from merely descriptive studies towards justification or curriculum comparison studies and, nowadays, towards a slow introduction of more clarification studies. In clarification studies quantitative and qualitative methods are used to explain why or how educational interventions work or do not work. This shift is described in this paper. In addition, it is explained how research into workplace learning and assessment has impacted developments in educational practice. Finally, it is argued that the participation of teachers within the medical domain in conducting and disseminating research should be cherished, because they play a crucial role in ensuring that medical education research is applied in educational practice.