; (ii) consistent with previous studies of other recovery coaching programs that have been rigorously evaluated and shown to increase family reunification and protect children, measure outcomes for parents and guardians and their children over multiple time periods, including for a period of 5 years; and (iii) include measurements of family stability and parent, guardian, and child safety for program participants and the program control group that are consistent with measurements of such factors for participants and control groups from previous studies of other recovery coaching programs so as to allow results of the impact study to be compared with the results of such prior studies, including with respect to comparisons between program participants and the program control group regarding— (I) safe family reunification; (II) time to reunification; (III) permanency (such as through measures of reunification, adoption, or placement with guardians); (IV) safety (such as through measures of subsequent maltreatment); (V) parental or guardian treatment persistence and engagement; (VI) parental or guardian substance use; (VII) juvenile delinquency; (VIII) cost; and (IX) other measurements agreed upon by the Secretary and the entity or entities operating the family recovery and reunification program under the project. (D) Implementation study The implementation study component of the evaluation shall be conducted concurrently with the conduct of the impact study component and shall include, in addition to such other information as the Secretary may determine, descriptions and analyses of— (i) the adherence of the family recovery and reunification program conducted under the project to other recovery coaching programs that have been rigorously evaluated and shown to increase family reunification and protect children