“…Fidelity of implementation (FOI) refers to the "extent to which intervention delivery adheres to the protocol or program model as intended by the intervention developers" (Mowbray, Holter, Teague, & Bybee, 2003). In implementation science, FOI is widely regarded as a multidimensional construct (Dane & Schneider, 1998;Durlak & DuPre, 2008;Dusenbury, Brannigan, Falco, & Hansen, 2003;Gould, Dariotis, Greenberg, & Mendelson, 2016;Gould at al., 2014). Dane and Schneider (1998) described five major dimensions of FOI which informed the theoretical basis of the NETWASS FOI assessment system: (1) adherence, which is the extent to which core activities and processes are implemented as prescribed by the program model; (2) dosage, which reflects the amount of intervention received by the participants, e.g., the number of training sessions;…”