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Table 2 Risk of bias assessment. Three ‘Yes’ assessments results in an overall assessment of evidence-based

From: Checklists to detect potential predatory biomedical journals: a systematic review

Study

Represent 1+ stakeholder groups (Y/N/U)*

Gather data for checklist development (Y/N/Only citations/ U)

Does the checklist meet at least one of these criteria?

(count only the last column in total)

Pilot test

(Y/N/U)

Includes number of criteria to be considered predatory (Y/N)

Overall assessment (is it evidence-based?) (Y/N)

Title (Y/N)

Fits on one page (Y/N)

Each item one sentence (Y/N)

Meets at least one of these (Y/N)

Checklists from electronic journal databases (n = 53)

[REFERENCE CHECKLIST] Shamseer, 2017 [13]

U

Y

Y

Y

Y

Y

U

N

N

Beall, 2012 [10]

U

U

N

N

N

N

U

N

N

Beall, 2013 [15]

U

Y

Y

Y

Y

Y

U

N

N

Crawford, 2014 [82]

U

U

N

Y

Y

Y

U

N

N

Knoll, 2014 [83]

U

Only citations

Y

Y

N

Y

U

N

N

Lukic, 2014 [84]

U

Only citations

N

Y

N

Y

U

N

N

Beall, 2015 [85]

U

Only citations

N

N

N

N

U

N

N

Bhad, 2015 [86]

U

U

Y

Y

Y

Y

U

N

N

Bradley-Springer, 2015 [87]

U

Only citations

N

Y

N

Y

U

N

N

Hemmat Esfe, 2015 [88]

U

Only citations

N

Y

Y

Y

U

N

N

INANE Predatory Publishing Practices Collaborative, 2015 [89]

U

U

Y

Y

Y

Y

U

N

N

Pamukcu Gunaydin, 2015 [90]

U

Only citations

N

Y

N

Y

U

N

N

Proehl, 2015 [91]

U

U

N

Y

Y

Y

U

N

N

Stone, 2015 [92]

U

Only citations

N

Y

Y

Y

U

N

N

Yucha, 2015 [93]

U

U

Y

Y

Y

Y

U

N

N

Cariappa, 2016 [94]

U

Only citations

Y

Y

Y

Y

U

N

N

Carroll, 2016 [95]

U

Y

Y

Y

Y

Y

U

N

N

Dadkhah, 2016 [96]

U

Y

Y

Y

Y

Y

Y

Y

Y

Fraser, 2015 [97]

U

Only citations

Y

Y

Y

Y

U

N

N

Glick, 2016 [98]

U

U

Y

Y

Y

Y

U

N

N

Glick, 2016a [99]

U

Only citations

Y

Y

Y

Y

U

N

N

Hansoti, 2016 [100]

Y

Y

N

Y

N

Y

U

N

Y

Morley, 2016 [101]

U

U

N

N

N

N

U

N

N

Nolan, 2016 [102]

U

U

N

Y

N

Y

U

N

N

Ward, 2016 [103]

U

U

N

N

N

N

U

N

N

Abadi, 2017 [16]

U

U

N

Y

Y

Y

U

N

N

Balehegn, 2017 [30]

U

Only citations

N

Y

Y

Y

U

N

N

Berger, 2017 [17]

U

U

N

Y

N

Y

U

N

N

Das, 2017 [18]

U

Only citations

Y

Y

Y

Y

U

N

N

Erfanmanesh, 2017 [19]

U

Only citations

Y

Y

Y

Y

U

N

N

Eriksson, 2017 [20]

U

U

Y

Y

Y

Y

U

N

N

Janodia, 2017 [21]

U

U

Y

Y

N

Y

U

N

N

Khan, 2017 [22]

Y

Only citations

Y

Y

N

Y

U

N

N

Klyce, 2017 [23]

U

Only citations

Y

Y

Y

Y

U

N

N

Manca, 2017 [24]

U

Only citations

N

Y

N

Y

U

N

N

Miller, 2017 [25]

U

U

Y

Y

Y

Y

U

N

N

Misra, 2017 [26]

U

Y

Y

Y

Y

Y

U

N

N

Mouton, 2017 [27]

U

U

Y

Y

N

Y

Y

Y

Y

Oren, 2017 [28]

U

U

Y

Y

Y

Y

U

N

N

Shamseer, 2017 [13]

U

Y

Y

Y

Y

Y

U

N

N

Stratton, 2017 [29]

U

U

Y

Y

Y

Y

U

N

N

Ajuwon, 2018 [33]

U

Only citations

Y

Y

Y

Y

U

N

N

Bowman, 2018 [34]

U

U

Y

Y

N

Y

U

N

N

Gerberi, 2018 [35]

U

Only citations

Y

Y

N

Y

U

N

N

Pamukcu Gunaydin, 2018 [36]

U

Only citations

Y

Y

N

Y

U

N

N

Kokol, 2018 [37]

U

Y

N

Y

Y

Y

U

N

N

Lewinski, 2018 [38]

U

Y

Y

Y

N

Y

U

N

N

McCann, 2018 [31]

U

Y

Y

Y

Y

Y

U

N

N

Memon, 2018 [39]

U

Y

Y

Y

Y

Y

U

N

N

Nnaji, 2018 [40]

U

Only citations

Y

N

N

Y

U

N

N

O’Donnell, 2018 [32]

U

Only citations

N

N

N

N

U

N

N

Power, 2018 [41]

U

Only citations

N

N

N

N

U

N

N

Richtig, 2018 [42]

U

Only citations

Y

Y

N

Y

U

N

N

Wikipedia, 2019 [104]

U

Only citations

N

Y

Y

Y

U

N

N

Checklists from university library websites (n = 30)

[REFERENCE CHECKLIST] Shamseer, 2017 [13]

U

Y

Y

Y

Y

Y

U

N

N

Carlson, 2014 [43]

U

Y

N

N

N

N

U

N

N

Clark, 2015 [1]

U

U

N

Y

N

Y

U

N

N

University of Edinburgh, 2015 [44]

U

U

Y

Y

Y

Y

U

N

N

Africa Check, 2017 [45]

U

Only citations

N

Y

N

Y

U

N

N

Cabell’s - Clarivate, 2017 [46]

Y

U

N

N

Y

Y

U

N

N

Duke University Medical Center, 2017 [47]

U

U

N

N

N

N

U

N

N

University of Calgary, 2017 [48]

U

U

N

Y

N

Y

U

N

N

Coopérer en information scientifique et technique, 2018 [49]

U

U

N

N

Y

Y

U

N

N

Eaton, University of Calgary, 2018 [50]

U

Y

N

Y

Y

Y

U

N

N

Lapinski, Harvard University, 2018 [51]

U

U

N

N

N

N

U

N

N

Sorbonne Université, 2018 [52]

U

U

Y

Y

Y

Y

U

N

N

University of Alberta, 2018 [54]

U

U

N

N

N

N

U

N

N

University of British Columbia, 2018 [53]

U

Only citations

Y

N

N

Y

U

N

N

University of Toronto Libraries, 2018 [55]

Y

U

N

N

N

N

U

Y

N

Dalhousie University, 2019 [56]

U

U

Y

Y

N

Y

U

N

N

McGill University, 2019 [57]

U

U

N

Y

N

Y

U

N

N

McMaster University, 2019 [58]

U

U

N

Y

Y

Y

U

N

N

Prater - American Journal Experts, 2019 [59]

Y

U

N

N

N

N

U

N

N

Ryerson University Library, 2019 [60]

U

U

N

Y

N

Y

U

N

N

Université Laval, 2019 [61]

U

U

N

Y

N

Y

U

N

N

University of Cambridge, 2019 [62]

U

U

N

Y

N

Y

U

N

N

University of Pretoria, 2019 [63]

U

U

N

Y

Y

Y

U

N

N

University of Queensland Library, 2019 [65]

U

U

N

Y

N

Y

U

N

N

University of Queensland Library, 2019a [64]

U

U

N

Y

N

Y

U

N

N

University of Witwatersrand, 2019 [66]

U

U

Y

N

Y

Y

U

N

N

Canadian Association of Research Libraries, ND [67]

U

U

N

Y

Y

Y

U

N

N

Columbia University Libraries, ND [68]

U

U

N

Y

N

Y

U

N

N

Technion Library, ND [69]

U

U

N

Y

N

Y

U

N

N

UC Berkeley, ND [70]

U

U

N

Y

N

Y

U

N

N

University of Ottawa Scholarly Communication, ND [71]

U

U

N

Y

N

Y

U

N

N

Checklists from YouTube (n = 10) [URLs available athttps://osf.io/eds9f/]

[REFERENCE CHECKLIST] Shamseer, 2017 [13]

U

Y (cross-sectional study on journals)

Y

Y

Y

Y

U

N

N

Robbins S, Western Sydney University, 2015 [72]

U

U

Y

Y

Y

Y

U

N

N

Attia, 2017 [73]

U

U

Y

N

N

Y

U

N

N

Kysh, USC Keck School of Medicine, 2017 [74]

U

U

Y

Y

Y

Y

U

N

N

McKenna, Rhodes University, 2017 [75]

U

U

Y

Y

Y

Y

U

N

N

Nicholson, University of Witwatersrand, 2017 [76]

U

U

Y

N

N

Y

U

N

N

Raszewski, 2017 [77]

U

U

Y

Y

N

Y

U

N

N

Seal-Roberts, Springer Healthcare, 2017 [78]

U

U

Y

Y

Y

Y

U

N

N

Menon, SCMS Group of Educational Institutions, India and Berryman, Cabells, 2018 [79]

U

U

Y

Y

Y

Y

U

N

N

Office of Scholarly Communication, Cambridge University, 2018 [80]

U

U

N

N

Y

Y

U

N

N

Weigand, UNC Libraries, 2018 [81]

U

U

N

Y

Y

Y

U

N

N

  1. *Y Yes, N No, U Unclear