Hi, I have a doubt...I am doing a research in which I am planning to do a knowledge-cum-skill based intervention on a single group. I am not able to make out if I can use the same questions for pretest and posttest. If I use different questions in each, how will I relate the results between the two and credit the intervention for the difference (if any) between these 2 tests?
I am aware of the memorization effect if these two tests are same. How to minimize that too?
Kindly help....same questions or different (yet equivalent ----how to measure this equivalence in knowledge based questions) questions in pretest and posttest?
Clearly, you could hardly relate both lists of responses if the questions are different. A potential solution (I don't know your experiment, so I cannot be sure) is using a memory-span test immediatelly between pre and post questions, in order to get the subject perform a different memory activity.
Pablo Delatorre - Thanks for your reply, could you please enlighten me on Memory Span Test that you mentioned?
This (or any other working memory span task) should help: https://englelab.gatech.edu/index
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