Table 3.

Process evaluation indicators use

	Recruitment Random sequence generation (Selection Bias)	Reach	Dose	Fidelity	Satisfaction
Eather et al. 2013 [31]	√	√	√	x	√
Elder et al. 2013 [32]	x	x	x	√	x
Foley et al. 2016 [33]	x	x	√	x	√
Gerards et al. 2015 [34]	x	√	√	x	√
Maddison et al. 2014 [43]	x	x	x	√	√
Simon et al. 2008 [51]	x	x	x	√	x
Yin et al. 2012 [55]	x	x	x	√	x