Dedoncker J.a,b, Brunoni, A.R., Baeken, C., and Vanderhasselt, M.A. (2015). The effect of the interval-between-sessions on prefrontal transcranial direct current stimulation (tDCS) on cognitive outcomes: a systematic review and meta-analysis. Journal of Neural Transmission

Corresponding author; Dedoncker J.:

aGhent University, Faculty of Psychology and Educational Sciences, Department of Experimental-Clinical and Health Psychology,Ghent, Belgium

bGhent University, University Hospital Ghent (UZ Ghent), Department of Psychiatry and Medical Psychology, Ghent, Belgium

Online Resource 4: Quality Assessment. Assessment of sequence generation, allocation concealment, blinding of participants and personnel, blinding of outcome assessment, incomplete outcome data and selective reporting.

Sequence Generation / Allocation Concealment / Blinding Participants / Blinding of Outcome Assessment / Incomplete Outcome Data / SelectiveOutcome Reporting
Andrews (Exp-1) / 2011 / Unclear / Unclear / Unclear / Low / Low / Low
Axelrod (Exp-1) / 2015 / Low / Unclear / Low / Low / Low / Low
Balconi (Exp-1) / 2014 / Low / Unclear / Low / Low / Low / Low
Balconi (Exp-1) / 2013 / Low / Unclear / Low / Low / Low / Low
Beeli (Exp-1) / 2008 / Low / Unclear / Unclear / Low / Low / Low
Berryhill (Exp-1) / 2012 / Unclear / Unclear / Low / Low / Low / Low
Boggio (Exp-1) / 2006 / Low / Unclear / Low / Low / Low / Low
Boggio (Exp-1) / 2009 / Low / Unclear / Unclear / Low / Low / Low
Bona (Exp-1) / 2014 / Low / Unclear / Unclear / Low / Low / Low
Cerruti (Exp-1) / 2008 / Low / Unclear / Low / Low / High / High
Dockery (Exp-1) / 2009 / Low / Unclear / Unclear / Low / High / Low
Fertonani (Exp-1) / 2014 / Unclear / Unclear / Low / Low / Low / Low
Fertonani (Exp-1) / 2010 / Unclear / Unclear / Low / Low / Low / Low
Filmer (Exp-1) / 2013 / Low / Unclear / Unclear / Low / Low / Low
Foldal (Exp-1) / 2015 / Low / Unclear / Unclear / Low / Low / Low
Fregni (Exp-1) / 2005 / Low / Unclear / Low / Low / Low / Unclear
Gill (Exp-1) / 2014 / Low / Unclear / Unclear / Low / Low / Low
Gladwin (Exp-1) / 2012a / Low / Unclear / High / Low / Low / Low
Gladwin (Exp-1a) / 2012b / Low / Unclear / Low / Low / Low / Low
Gorini (Exp-1) / 2014 / Low / Unclear / Unclear / Low / Low / Low
Hammer (Exp-1) / 2011 / Low / Unclear / Low / Low / Low / Low
Harty (Exp-1) / 2014 / Low / Unclear / Low / Low / Low / Low
Hoy (Exp-1) / 2014 / Low / Low / Unclear / Low / Low / Low
Hoy (Exp-1) / 2013 / Low / Low / Low / Low / Low / Low
Hsu (Exp-1) / 2015 / Low / Unclear / Unclear / Low / Low / Low
Javadi (Exp-1) / 2013 / Low / Unclear / Low / Low / Low / High
Jo (Exp-1) / 2009 / Low / Unclear / Unclear / Low / Low / Low
Jones (Exp-1) / 2015 / Low / Unclear / Low / Low / Low / Low
Kang (Exp-1) / 2009 / Low / Unclear / Unclear / Low / Low / Low
Kang (Exp-1) / 2012 / Low / Unclear / Low / Low / Low / High
Keeser (Exp-1) / 2011 / Low / Unclear / Low / Low / Low / Low
Keshvari (Exp-1) / 2013 / Low / Unclear / Unclear / Low / Low / Low
Knechtel (Exp-1) / 2014a / Low / Unclear / Low / Low / Low / Low
Knechtel (Exp-1) / 2014b / Low / Unclear / Unclear / Low / Low / Low
Leite (Exp-1) / 2013 / Low / Unclear / Unclear / Low / Low / Low
Leite (Exp-1) / 2011 / Low / Unclear / Unclear / Low / Low / Low
Metuki (Exp-1) / 2012 / Unclear / Unclear / Low / Low / Low / Low
Mulquiney (Exp-1) / 2011 / Low / Unclear / Unclear / Low / Low / Low
Mylius (Exp-1) / 2012 / Low / Unclear / Unclear / Low / Low / Low
Nelson (Exp-1) / 2014 / Low / Unclear / Unclear / Low / Low / Low
Nieratschker (Exp-1) / 2014 / Low / Unclear / Unclear / Low / Low / Low
Nilsson (Exp-1) / 2015 / Low / Unclear / Unclear / Low / Low / Low
Nozari (Exp-1) / 2013 / Low / Unclear / Low / Low / Low / Low
Ohn (Exp-1) / 2008 / Low / Unclear / Unclear / Low / Low / Low
Penolazzi (Exp-1) / 2010 / Low / Unclear / Unclear / Low / Low / Low
Plewnia (Exp-1) / 2013 / Low / Unclear / Unclear / Low / Low / Low
Powell (Exp-1) / 2014 / Low / Unclear / Unclear / Low / Low / Low
Saidmanesh (Exp-1) / 2012 / Low / Unclear / Unclear / Low / Low / Low
Sela (Exp-1) / 2012 / Low / Unclear / Unclear / Low / Low / Low
Smirni (Exp-1) / 2015 / Unclear / Unclear / Low / Low / Low / Low
Teo (Exp-1) / 2011 / Low / Low / Unclear / Low / Low / Low
Turi (Exp-1) / 2014 / Low / Low / Unclear / Low / Low / Low
Vanderhasselt (Exp-1) / 2013a / Low / Unclear / Low / Low / Low / Low
Vanderhasselt (Exp-1) / 2013b / Low / Unclear / Low / Low / Low / Low
Vannorsdall (Exp-1) / 2012 / High / Unclear / Unclear / Low / Low / Low
Vercammen (Exp-1) / 2011 / Low / Unclear / Unclear / Low / Low / Low
Wirth (Exp-1) / 2011 / Low / Unclear / Low / Low / Low / Low
Wolkenstein (Exp-1) / 2013 / Low / Low / Unclear / Low / Low / Low
Wolkenstein (Exp-1) / 2014 / Low / Low / Unclear / Low / Low / Low
Wu (Exp-1) / 2014 / Low / Unclear / High / Low / Low / Low
Zmigrod (Exp-1) / 2014 / Low / Unclear / Low / Low / Low / Low

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