Skip to Main Content
Table 3.

AJOT Research Articles, 2017–2022: Research Type and Level of Evidence

Categoryn (%)
2022 (N = 100)2021 (N = 91)2020 (N = 93)2019 (N = 91)2018 (N = 85)2017 (N = 81)
Research type       
 Effectiveness 20 (20.0) 18 (19.8) 22 (23.7) 24 (26.4) 28 (32.9) 19 (23.5) 
 Instrument development and testing 23 (23.0) 10 (11.0) 18 (19.4) 18 (19.8) 15 (17.6) 8 (9.9) 
 Basica 17 (17.0) 15 (16.5) 15 (16.1) 23 (25.3) 17 (20.0) 27 (33.4) 
 Professional issues 6 (6.0) 4 (4.4) 1 (1.1) 8 (8.8) 5 (5.9) 1 (1.2) 
 Health services 6 (6.0) 1 (1.1) 2 (2.4) 1 (1.2) 
 Critical reviewsb 18 (18.0) 20 (22.0) 24 (25.8) 8 (8.8) 17 (20.0) 17 (21.0) 
 Education 1 (1.0) 4 (4.4) 6 (6.4) 7 (7.7) 1 (1.2) 4 (4.9) 
 Methodology 2 (2.0) 1 (1.1) 3 (3.2) 3 (3.3) — 4 (4.9) 
 Exploratory or qualitative inquiry 7 (7.0) 18 (19.8) 4 (4.3) — — — 
Level of evidence (effectiveness studies)c       
 I 16 (53.3) 19 (59.4) 16 (41.0) 14 (48.3) 23 (53.5) 23 (67.6) 
 II 4 (13.3) 5 (15.6) 1 (2.6) 1 (2.3) 
 III 7 (23.3) 7 (21.9) 11 (28.2) 8 (27.6) 14 (32.6) 7 (20.6) 
 IV 2 (6.7) 1 (3.1) 8 (20.5) 3 (10.3) 3 (7.0) 3 (8.9) 
 V 1 (3.3) 3 (7.7) 3 (10.3) 2 (4.7) 1 (2.9) 
 Unable to be classified 1 (3.4) 
Categoryn (%)
2022 (N = 100)2021 (N = 91)2020 (N = 93)2019 (N = 91)2018 (N = 85)2017 (N = 81)
Research type       
 Effectiveness 20 (20.0) 18 (19.8) 22 (23.7) 24 (26.4) 28 (32.9) 19 (23.5) 
 Instrument development and testing 23 (23.0) 10 (11.0) 18 (19.4) 18 (19.8) 15 (17.6) 8 (9.9) 
 Basica 17 (17.0) 15 (16.5) 15 (16.1) 23 (25.3) 17 (20.0) 27 (33.4) 
 Professional issues 6 (6.0) 4 (4.4) 1 (1.1) 8 (8.8) 5 (5.9) 1 (1.2) 
 Health services 6 (6.0) 1 (1.1) 2 (2.4) 1 (1.2) 
 Critical reviewsb 18 (18.0) 20 (22.0) 24 (25.8) 8 (8.8) 17 (20.0) 17 (21.0) 
 Education 1 (1.0) 4 (4.4) 6 (6.4) 7 (7.7) 1 (1.2) 4 (4.9) 
 Methodology 2 (2.0) 1 (1.1) 3 (3.2) 3 (3.3) — 4 (4.9) 
 Exploratory or qualitative inquiry 7 (7.0) 18 (19.8) 4 (4.3) — — — 
Level of evidence (effectiveness studies)c       
 I 16 (53.3) 19 (59.4) 16 (41.0) 14 (48.3) 23 (53.5) 23 (67.6) 
 II 4 (13.3) 5 (15.6) 1 (2.6) 1 (2.3) 
 III 7 (23.3) 7 (21.9) 11 (28.2) 8 (27.6) 14 (32.6) 7 (20.6) 
 IV 2 (6.7) 1 (3.1) 8 (20.5) 3 (10.3) 3 (7.0) 3 (8.9) 
 V 1 (3.3) 3 (7.7) 3 (10.3) 2 (4.7) 1 (2.9) 
 Unable to be classified 1 (3.4) 

Note. AJOT = American Journal of Occupational Therapy; — = not applicable. Research categories are based on those developed by Richards (2015).

a

Includes studies used to establish relationships between conditions and occupational limitations, prevalence or incidence of conditions or client factors, predictors of outcomes, or taxonomies.

b

Includes systematic, mapping and scoping reviews, meta-analyses.

c

Effectiveness studies include systematic reviews of effectiveness studies but do not include scoping reviews; systematic reviews of instruments; or diagnostic, prevalence, or incidence studies. Levels of Evidence ranked on the following scale: I = systematic reviews, meta-analyses, randomized controlled trial; II = two or more groups, nonrandomized (e.g., cohort, case-control); III = one group, nonrandomized (e.g., pretest–posttest, before and after); IV = descriptive studies that include analysis of outcomes (e.g., single subject design, case series); V = case reports and expert opinion that include narrative literature reviews and consensus statements.

Close Modal

or Create an Account

Close Modal
Close Modal