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May I ask about the method to compare means in data analysis? Suppose our organization has a 6-month social skill training for young offenders, we want to know its effectiveness, and we have done the pre-test and post-test.

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Discussion thread: Services for Offenders and Drug Abusers

Cindy Au

7 April 2021

May I ask about the method to compare means in data analysis? Suppose our organization has a 6-month social skill training for young offenders, we want to know its effectiveness, and we have done the pre-test and post-test.

May I ask about the method to compare means in data analysis? Suppose our organization has a 6-month social skill training for young offenders, we want to know its effectiveness, and we have done the pre-test and post-test.

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Karen Chan

7 April 2021

It's OK.

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Cindy Au

7 April 2021

Thank you for answering me.

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Karen Chan

7 April 2021

In your case, if it is two tests within one group without a control group, you may use the paired-samples T-test.

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