title: Investigating the use of written and performance-based testing to summarize competence on the case management component of the NBCE part IV-national practical examination.
abstract: BACKGROUND
  Large-scale performance-based examinations are logistically complex and costly to run. Scores based solely on performance-based stations require extended testing time to achieve acceptable generalizability.
  
  
  OBJECTIVE
  Combining scores from performance-based formats and written formats may improve test generalizability.
  
  
  METHODS
  Data from 718 test-takers on the standardized patient-based portion of the National Board of Chiropractic Examiners Part IV examination were analyzed using a generalizability framework.
  
  
  RESULTS
  The written and performance scores displayed a moderate universe score correlation indicating each component provided unique information about related clinical skills and the examinee's ability to manage a case. Combining the two scores provided a summary score that was more generalizable than either of the two measures individually.
  
  
  CONCLUSIONS
  These results provide guidance for improving the generalizability of the standardized patient-based stations by combining the scores on the performance and written components using appropriate weighting procedures.
authors.affiliation: Department of Practical Testing Research and Development, National Board of Chiropractic Examiners, Greeley, Colorado, USA.
authors.forename: Paul D
authors.initials: PD
authors.lastname: Townsend
authors.forename: Mark G
authors.initials: MG
authors.lastname: Christensen
authors.forename: Clarence D
authors.initials: CD
authors.lastname: Kreiter
authors.forename: James R
authors.initials: JR
authors.lastname: zumBrunnen
mesh_terms: D019090:Case Management / Q000592:standards*; D002684:Chiropractic / Q000193:education*; D002983:Clinical Competence / Q000592:standards*; D004521:Educational Measurement / Q000379:methods*; D006801:Humans; D015203:Reproducibility of Results; D013647:Task Performance and Analysis