A Researcher Uses a Repeated-Measures Study to Compare Two Treatment

question 42

Multiple Choice

A researcher uses a repeated-measures study to compare two treatment conditions with a set of 20 scores in each treatment.What would be the value of df for the repeated-measures t statistic?​

• A)​df = 18
• B)​df = 19
• C)​df = 38
• D)​df = 39

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