Quality of intervention delivery: Numerical results of process analysis not stated; "In structors completed delivery process questionnaires daily, weekly and immediately post program. Classroom teacher observers were surveyed weekly. The school staff was interviewed during the week immediately following the class sesion". Parents signed when student-parent homework was complete; the authors commented "Fidelity of implementation was assured through curriculum delivery by trained health educators [but] Unfortunately the television programming was poorly executed and there was significant variability in the integrity of classroom program delivery"
Statistical quality:
Was a power computation performed? No.
Was an intention-to-treat analysis performed? Not stated.
Was a correction for clustering made? Yes.
Were appropriate statistical methods used? Results were adjusted for clustering using ML3 multilevel analysis programme for unbalanced data that uses iterative generalized least-squares estimation