"It's Valid and Reliable" Is Not Enough: Critical Appraisal of Reporting of Measures in Trials Evaluating Patient Decision Aids.
This review systematically appraises the quality of reporting of measures used in trials to evaluate the effectiveness of patient decision aids (PtDAs) and presents recommendations for minimum reporting standards.



We reviewed measures of decision quality and decision process in 86 randomized controlled trials (RCTs) from the 2011 Cochrane Collaboration systematic review of PtDAs. Data on development of the measures, reliability, validity, responsiveness, precision, interpretability, feasibility, and acceptability were independently abstracted by 2 reviewers.



Information from 178 instances of use of measures was abstracted. Very few studies reported data on the performance of measures, with reliability (21%) and validity (16%) being the most common. Studies using new measures were less likely to include information about their psychometric performance. The review was limited to reporting of measures in studies included in the Cochrane review and did not consult prior publications.



Very little is reported about the development or performance of measures used to evaluate the effectiveness of PtDAs in published trials. Minimum reporting standards are proposed to enable authors to prepare study reports, editors and reviewers to evaluate submitted papers, and readers to appraise published studies.
General Medicine Division, Massachusetts General Hospital and Harvard Medical School, Boston, MA (KS)
Karen R
KR
Sepucha
University of Colorado School of Medicine, Aurora, CO (DDM)The Ohio State University, Columbus, OH (CEW)
Daniel D
DD
Matlock
The Ohio State University, Columbus, OH (CEW)
Celia E
CE
Wills
Department of Public Health Sciences, University of Virginia School of Medicine, Charlottesville, VA (MR)
Mary
M
Ropka
Cochrane Institute of Primary Care and Public Health, Cardiff University, CARDIFF, UK (NJ)
Natalie
N
Joseph-Williams
University of Ottawa and Ottawa Hospital Research Institute, Ottawa, Canada (DS)
Dawn
D
Stacey
Department of Primary Care Medicine, University of Malaya, Kuala Lumpur, Malaya (CN)
ChirkJenn
C
Ng
Informed Medical Decisions Foundation, Boston, MA (CL)
Carrie
C
Levin
Institute of Health and Society, Newcastle University, Newcastle, UK (JL, RT)
Joanne
J
Lally
University of Toronto and The Hospital for Sick Children, Toronto, ON, Canada (CMB).
Cornelia M
CM
Borkhoff
Institute of Health and Society, Newcastle University, Newcastle, UK (JL, RT)
Richard
R
Thomson
D000068598:Data Accuracy; D003661:Decision Support Techniques; D006801:Humans; D010358:Patient Participation / Q000379:methods*; D011594:Psychometrics; D015203:Reproducibility of Results; D012107:Research Design / Q000592:standards*
decision aids; decision making; psychometrics