“…All of the programs designed clear criteria for participants, provided detailed description of interventions, and defined prespecified outcome measures. Only nine parenting programs reported the entire implementation process of randomization, including how the random allocation sequence was generated, the random allocation mechanism, who implemented the randomization, and who was blinded (Armstrong, Fraser, Dadds, & Morris, 1999; Barlow et al, 2007; Duggan et al, 2007; Duggan et al, 1999; DuMont et al, 2008; Guterman et al, 2013; Jouriles et al, 2010; Olds, Henderson, Chamberlin, & Tatelbaum, 1986; Oveisi et al, 2010). All studies were included because the studies provided sufficient data to compute effect sizes with satisfactory methodological quality scores (example.g., mean, SD , p , events rate, odds ratio, and sample sizes).…”