title: Pre-training evaluation and feedback improve medical students' skills in basic life support.
abstract: BACKGROUND
  Evaluation and feedback are two factors that could influence simulation-based medical education and the time when they were delivered contributes their different effects.
  
  
  OBJECTIVE
  To investigate the impact of pre-training evaluation and feedback on medical students' performance in basic life support (BLS).
  
  
  METHODS
  Forty 3rd-year undergraduate medical students were randomly divided into two groups, C group (the control) and pre-training evaluation and feedback group (E&F group), each of 20. After BLS theoretical lecture, the C group received 45 min BLS training and the E&F group was individually evaluated (video-taped) in a mock cardiac arrest (pre-training evaluation). Fifteen minutes of group feedback related with the students' BLS performance in pre-training evaluation was given in the E&F group, followed by a 30-min BLS training. After BLS training, both groups were evaluated with one-rescuer BLS skills in a 3-min mock cardiac arrest scenario (post-training evaluation). The score from the post-training evaluation was converted to a percentage and was compared between the two groups.
  
  
  RESULTS
  The score from the post-training evaluation was higher in the E&F group (82.9 ± 3.2% vs. 63.9 ± 13.4% in C group).
  
  
  CONCLUSIONS
  In undergraduate medical students without previous BLS training, pre-training evaluation and feedback improve their performance in followed BLS training.
authors.affiliation: West China Hospital of Sichuan University, Chengdu, Sichuan 610041, PR China.
authors.forename: Qi
authors.initials: Q
authors.lastname: Li
authors.forename: Er-Li
authors.initials: EL
authors.lastname: Ma
authors.forename: Jin
authors.initials: J
authors.lastname: Liu
authors.forename: Li-Qun
authors.initials: LQ
authors.lastname: Fang
authors.forename: Tian
authors.initials: T
authors.lastname: Xia
mesh_terms: D016887:Cardiopulmonary Resuscitation / Q000193:education* / Q000706:statistics & numerical data; D002681:China; D002983:Clinical Competence / Q000706:statistics & numerical data*; D016001:Confidence Intervals; D004504:Education, Medical, Undergraduate / Q000379:methods* / Q000706:statistics & numerical data; D004522:Educational Status; D030141:Feedback, Psychological; D005260:Female; D007722:Health Knowledge, Attitudes, Practice; D006801:Humans; D007858:Learning; D008297:Male; D016037:Single-Blind Method; D013337:Students, Medical; D013663:Teaching / Q000379:methods*; D013997:Time Factors; D014743:Videotape Recording; D055815:Young Adult