ment ▁requires ▁gain ing ▁information ▁from ▁research ▁literature ▁and ▁existing ▁practices ▁to ▁assess ▁various ▁components ▁of ▁the ▁program ▁theory . ▁The ▁evalu ator ▁can ▁assess ▁whether ▁the ▁program ▁theory ▁is ▁con gru ent ▁with ▁research ▁evidence ▁and ▁practical ▁experiences ▁of ▁programs ▁with ▁similar ▁concepts . ▁▁ ▁Ass ess ment ▁via ▁pre lim inary ▁observation ▁ ▁This ▁approach ▁involves ▁incorpor ating ▁first hand ▁observations ▁into ▁the ▁assess ment ▁process ▁as ▁it ▁provides ▁a ▁reality ▁check ▁on ▁the ▁conc ord ance ▁between ▁the ▁program ▁theory ▁and ▁the ▁program ▁itself . ▁The ▁observations ▁can ▁focus ▁on ▁the ▁att ain ability ▁of ▁the ▁out comes , ▁circumstances ▁of ▁the ▁target ▁population , ▁and ▁the ▁pla us ibility ▁of ▁the ▁program ▁activities ▁and ▁the ▁supporting ▁resources . ▁ ▁These ▁different ▁forms ▁of ▁assess ment ▁of ▁program ▁theory ▁can ▁be ▁conducted ▁to ▁ensure ▁that ▁the ▁program ▁theory ▁is ▁sound . ▁ ▁Wright ▁and ▁Wall is ▁( 2 0 1 9 ) ▁described ▁an ▁additional ▁technique ▁for ▁assess ing ▁a ▁program ▁theory ▁based ▁on ▁the ▁theory ' s ▁structure . ▁This ▁approach , ▁known ▁as ▁integr ative ▁propos itional ▁analysis ▁( IP A ), ▁is ▁based ▁on ▁research ▁streams ▁finding ▁that ▁theories ▁were ▁more ▁likely ▁to ▁work ▁as ▁expected ▁when ▁they ▁had ▁better ▁structure ▁( in ▁addition ▁meaning ▁and ▁data ). ▁IP A ▁involves , ▁first , ▁ident ifying ▁the ▁propos itions ▁( stat ements ▁of ▁cause - and - effect ) ▁and ▁creating ▁a ▁visual ▁diagram ▁of ▁those ▁propos itions . ▁Then , ▁the ▁research er ▁exam ines ▁the