If I do a research project and my hypothesis is that attitudes of human services providers towards HIV/AIDS would improve after participation in a program would my sampling method be simple random, stratified or cluster sampling? I think it would be simple random sampling but I am not sure. Could the data collection process be through surveys before and after the program and the research instrument be education? Please let me know if I am right or correct me if I am wrong.
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I suspect the attitudes of HService providers would be different in cities, and in geographic regions. Would you anticipate a difference in SanFrancisco and Dallas? I think I would use cluster sampling. But it really depends on what you mean by human service providers, I think.
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