title: Right-left discrimination among medical students: questionnaire and psychometric study.
abstract: OBJECTIVE
  To determine medical students' self awareness and ability to discriminate right from left; to identify characteristics associated with this ability; and to identify any techniques used to aid discrimination.
  
  
  METHODS
  Questionnaire and psychometric study.
  
  
  METHODS
  Undergraduate medical school, Northern Ireland.
  
  
  METHODS
  290 first year undergraduate students.
  
  
  METHODS
  Medical students' ability to discriminate right from left using the Bergen right-left discrimination test.
  
  
  RESULTS
  Test scores ranged from 31 to 143 on a scale of 0-144 (mean 112 (standard deviation 22.2)). Male students significantly outperformed female students (117.18 (26.96) v 110.80 (28.94)). Students who wanted to be surgeons performed significantly better than those who wanted to be general practitioners or medical doctors (119.87 (25.15) v 110.55 (27.36) v 112.50 (26.88)). The interaction effect for sex and career wishes was not significant (P=0.370). Students who used learnt techniques to help them discriminate scored significantly less than those who did not (P<0.001). Students had greater difficulty in discriminating right from left when looking at the forward view rather than the back view (P<0.001).
  
  
  CONCLUSIONS
  Male students were better than female students at distinguishing right from left, and aspiring surgeons were better than aspiring general practitioners or medical doctors. Students had more difficulty with the forward view than the back view.
authors.affiliation: Centre of Medical Education, School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, Belfast, Northern Ireland. g.gormley@qub.ac.uk
authors.forename: Gerard J
authors.initials: GJ
authors.lastname: Gormley
authors.forename: Martin
authors.initials: M
authors.lastname: Dempster
authors.forename: Rachael
authors.initials: R
authors.lastname: Best
mesh_terms: D000293:Adolescent; D000328:Adult; D001076:Aptitude; D004192:Discrimination, Psychological / Q000502:physiology*; D005260:Female; D007839:Functional Laterality; D006801:Humans; D008297:Male; D011594:Psychometrics; D012727:Sex Characteristics; D013337:Students, Medical / Q000523:psychology*; D055815:Young Adult