APPENDIX 1.

Literature review search strategy and results summary.

Methods terms
1*”Outcome Assessment (Health Care)”/ (20924)
2*Clinical Trials as Topic/mt (5031)
3Psychometrics/mt (4322)
4Validation.tw. (106397)
5Validation Studies as Topic/ (1554)
6Face validity.tw. (1680)
7Content validity.tw. (3520)
8Construct validity.tw. (10814)
9Concurrent validity.tw. (3908)
10Convergent validity.tw. (3441)
11Discriminant validity.tw. (3381)
12or/1–11 (151626)
Questionnaires/Instrument terms
13*Questionnaires/ (29828)
14tool.mp. or toolkit.tw. (281574)
15Checklist.tw. (17906)
16instrument.tw. (78808)
17survey.tw. (329220)
18*Evaluation Studies as Topic/ (6233)
19or/13–18 (704783)
Readability/Cultural Adaptation/Literacy terms
20*Information Literacy/ (71)
21*Health Literacy/ (1098)
22*Cultural Characteristics/ (4999)
23Quality of Life/ (120720)
24*Cultural Diversity/ (5147)
25*Language/ (15378)
26Patient Education as Topic/mt [Methods] (13508)
27*Reading/ (10294)
28*Writing/ (8064)
29*Linguistics/ (3192)
30(print$ adj2 (question$ or information or instruction$ or advice or advise$ or educat$)).tw. (680)
31(written adj2 (information or question$ or instruction$ or advice or advise$ or educat$)).tw. (4444)
32*Comprehension/ (3913)
33readability.tw. (1566)
34(cultur$ adj3 adaptat$).tw. (2033)
35or/20–34 (188422)
Systematic review filter
36meta analysis.mp,pt. (82839)
37review.pt. (1925475)
38search:.tw. (257076)
39or/36–38 (2125371)
All concepts combined (no study design filter):
4012 and 19 and 35 (5753)
With McMaster systematic review filter:
4139 and 40 (394)