title: Validation of an instrument for injury data collection in rugby union.
abstract: OBJECTIVE
  To provide the basis for collecting rugby union injury data using a rigorously validated injury report form.
  
  
  METHODS
  Seven stages were used to assess face, content, and criterion validity of the rugby union injury report form. A 22 member panel plus four sporting bodies assessed the form for face validity, and an expert panel assessed it for content and criterion validity. Panel members were consulted until consensus was reached. A yardstick developed by an expert panel using the Delphi technique was used to assess the reliability of the form. An independent panel of 10 viewed a series of five videotaped injuries, three times over a five week period to assess inter-rater and intrarater reliability. The form was then trialed by 40 people in situ during four games.
  
  
  RESULTS
  The rugby union injury report form for games and training was developed, and the face, content, and criterion validity successfully assessed. A seven step protocol to create a yardstick was also developed to assist in the validation process. Both inter-rater and intrarater reliability results indicated a 98% agreement. The 40 trialists who completed forms in situ during four games were found to have an inter-rater reliability agreement of 98% for nine injuries.
  
  
  CONCLUSIONS
  A measurement instrument for injury data collection in rugby union was successfully developed and validated, providing researchers with a basis for future studies in this area. A procedure to develop future injury data collection instruments in other sports was also developed.
authors.affiliation: Centre for Health Promotion Research, School of Public Health, Curtin University of Technology, Perth, Australia. mcmanusa@health.curtin.edu.au
authors.forename: A
authors.initials: A
authors.lastname: McManus
mesh_terms: D003625:Data Collection / Q000295:instrumentation*; D003697:Delphi Technique; D005538:Football / Q000293:injuries*; D006801:Humans; D015203:Reproducibility of Results