Should we check reliability and validity of the tool/test at the time of Piloting ( at the time of item analysis)? Or have to take another sample?

05 October 2023 1 4K Report

Suppose we pilot a first draft of the test on a sample of 300. From the data we will calculate Discrimination value, CVI etc.. and we finalise the items

After that should we have to take data for reliability and validity ? Or we can use the same data?

Rhianon Allen

It's the practical choice to use the same sample.

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