What was the mode of delivery for the intervention (online, video, in-class activity, etc.)?

Was the intervention carried out as planned, or were there significant problems with its implementation?

Has the intervention been used in previous studies? What have these shown about the effectiveness of the intervention?

Critical analysis – were the activities in the intervention clearly mapped onto theoretical or explanatory factors?  

Did the design of the intervention follow? Logically from the identification of factors that contribute to the problem?