Question: A repeated-measures study examines the change in inmate behavior before and after a new correctional program. If all participants show improved behavior of approximately 8

A repeated-measures study examines the change in inmate behavior before and after a new correctional program. If all participants show improved behavior of approximately 8 points after the program, what should the researcher find regarding the variance of the difference scores? Option A The sample mean difference score is near zero. Option B The t-statistic is near zero. Option C The variance of the difference scores is near zero. Option D This is impossible to determine based on the provided information

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