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Table 1 Quality index assessment scale ratings

From: Effect of Low-intensity Exercise on Physical and Cognitive Health in Older Adults: a Systematic Review

Study Reporting External validity Internal validity—bias Internal validity—confounding Power QI score
Full score, 11 Full score, 3 Full score, 7 Full score, 6 Full score, 1 Full score, 28
Blair et al., 2014 [54] 7 2 5 4 0 18
Brown et al., 2000 [55] 8 3 5 3 0 19
Dawe et al., 1995 [56] 7 3 5 4 0 19
DeVito et al., 2003 [57] 6 3 5 2 0 16
Lam et al., 2011 [58] 8 2 4 3 0 17
Li et al., 2005 [59] 8 3 5 2 0 18
Mangione et al., 1999 [60] 8 3 5 3 0 19
Means et al., 1996 [61] 9 3 4 2 0 18
Morey et al., 2009 [62] 7 2 6 3 0 18
Morgan et al., 2004 [63] 8 3 5 3 0 19
Motl et al., 2005 [64] 6 3 4 2 0 15
Rosie et al., 2007 [65] 9 3 5 2 0 19
Schnelle et al., 2003 [66] 8 3 6 3 0 20
Singh et al., 2005 [67] 8 3 6 3 0 20
Wolfson et al., 1996 [68] 9 3 5 3 0 20