Question

I am a researcher interested in children’s reading. I feel children should be reading more as they get older and feel generally interested in learning about current reading trends. I feel a good way to learn about the current reading trends to learn about their Accelerated Reader points. I feel older students are already reading more and should have more AR points than younger students. I predict that the older children will have more AR points than younger children.

What kind of sampling method is this? Why do you think this is a good method? Conversely, do you think this is a bad method?

Answer 1

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• This is a Judgement Sampling (Purposive sampling) method. Here the researcher selected the study variable according to his or her feel.
• If we want to claim this method is good, then the population should follow that intuition. Usually in fact that is going to be true, because older are much better reader than younger. Then we can apply this Method. In that sense we can say it is good here. ( Remember it is not a good procedures, but your question is to justify it is good )
• This is a non random sampling method. We cannot assure its validity in terms of probability. It is purely based on investigators taste. So it is a biased sampling technique. How can we assure youngers are poor readers than olders. So it is bad sampling procedure