Quality Domains		Alonso N. P. et al. (2017)	Byrne P. J. & Senk P. A (2017)	Frost J et al. (2020)	Hauze. S. et al. (2018)	Lai C. L. & Chang Y. M. (2018)	Teng C.C et al. (2019)	Vaughn K. et al. (2016)	Wuller H. et al. (2018)	Wunder L. et al. (2020)	Yoshida S. et al. (2015)
1	Abstract/title	G	G	G	G	G	G	G	G	G	G
2	Introduction/Aims	G	G	F	G	F	F	F	G	G	P
3	Method/Data	F	P	G	F	F	G	P	P	F	P
4	Sampling	G	P	P	F	N/A	N/A	P	P	F	VP
5	Data Analysis	F	F	P	P	N/A	N/A	P	P	F	P
6	Ethic/Bias	P	G	G	P	P	VP	P	VP	G	P
7	Results	F	P	F	P	P	VP	P	P	F	VP
8	Transferability/Generalizability	F	F	F	F	F	P	F	F	F	F
9	Implications/Usefulness	F	F	F	F	F	P	F	F	F	F

G = Good; F = Fair; P = Poor; VP = Very Poor.