Yes - as long as you can establish a control group under randomised conditions. The problem being - to what extent do you want to generalise the findings? You can only generalise the findings against other schools of very similar qualities.
Yes - as long as you can establish a control group under randomised conditions. The problem being - to what extent do you want to generalise the findings? You can only generalise the findings against other schools of very similar qualities.
And you have to ensure that the intervention is not imitated or copied by the control group.
From the characteristics for RCT is the high control on extraneous variables. Doing the study in one setting will support the needed control in your design rather than have heterogeneous sample.
Shahnawaz, you cannot do an RCT in 2 schools, one treatment and one control, as that is considered an (n = 1 confounding factor) according to the WWC. Please see slide 5 in the link below.
https://ies.ed.gov/ncee/wwc/Docs/OnlineTraining/wwc_training_m4.pdf
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