The posttest-only control group design is a basic experimental design where participants get randomly assigned to either receive an intervention or not, and then the outcome of interest is measured only once after the intervention takes place in order to determine its effect. This design differs from the pretest-posttest randomized controlled trial by requiring no measurements before the intervention. I request the experts to share opinions on this.....
Post design only can be considered an RCT or True Experient as long as it satisfies the criteria such as Randomization, Control and Manipulation. There are instances that the outcome variable can not be measured pre test example would br compliance to tretament, or performace of tasks that are supposed to be demonstrated only after the intervention.
Hi Ramesh
I strongly agree with Torres’s comment on your query.
The RCT research design is mostly used in evaluating the efficacy of a newly prepared therapeutic drugs by the pharmaceuticals.
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