Manual Event (Session ID,DateTime,Event) = qe491i0u9bof4kmtvae07qpt0m 20231211003335 /tc/communities/dear-dr-mel-we-are-developing-an-evaluation-program-on-the-operation-of-the-action-committee-against-narcotics-acan-i-am-not-sure-about-the-sample-size-we-need-to-conduct-the-survey-could-you-pl/

Dear Dr. Mel, we are developing an evaluation program on the operation of the Action Committee Against Narcotics (ACAN). I am not sure about the sample size we need to conduct the survey. Could you please tell me if it is better to have a big sample size?

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Mission

2022年11月11日

Dear Dr. Mel, we are developing an evaluation program on the operation of the Action Committee Against Narcotics (ACAN). I am not sure about the sample size we need to conduct the survey. Could you please tell me if it is better to have a big sample size?

Dear Dr. Mel, we are developing an evaluation program on the operation of the Action Committee Against Narcotics (ACAN). I am not sure about the sample size we need to conduct the survey. Could you please tell me if it is better to have a big sample size?

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Macy

2022年11月10日

Thank you for asking.

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Mission

2022年11月10日

Thanks for answering!

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Macy

2022年11月10日

The sample size affects the power of a statistical test greatly. The larger the sample size, the smaller the variance of the sampling distribution of the mean. But you must remember that a larger sample size means a higher economic cost also. Hence, you may calculate the sample size based on your research funding.

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