When a researcher wants to determine if two means of two different questions using the same scale format and answered by the same respondents in the sample are significantly different,they would use what type of test?
A)Paired samples test for the difference between respondents
B)Paired samples test for the difference between two means
C)Paired samples test for the difference between two medians
D)Non-paired samples test for the difference between two means

Question

Quizplus · Accepted Answer

A paired samples test for the difference between two means is appropriate in this scenario as it compares the means of two related samples (i.e. the same respondents) on the same scale format. Non-paired samples test for the difference between two means would not be appropriate as the two groups being compared are not independent. Paired samples test for the difference between two medians is not appropriate as it is used when comparing two medians of related samples, and may not be as powerful as a test for means.

When a Researcher Wants to Determine If Two Means of Two