A researcher is interested in investigating whether people perform better at dexterity tests while listening to classical music or to no music.He designs a dexterity test,and first gives it to his participants while classical music is playing,and then while no music is playing.
A)Paired t-test,since there are two sets of measurements on the same subjects,providing a natural linking.
B)One-sample t-test,since there is only one sample of subjects taking the dexterity tests.
C)z-test,since the researcher can find the standard deviation of his population.
D)Two-sample t-test,since how a subject performs with music should have no influence on how he performs without music,creating two independent samples.
E)Not enough information is given to determine the best type of test.

Question

Quizplus · Accepted Answer

The researcher is interested in comparing the performance of the same participants on two different conditions (with music vs without music). A paired t-test is appropriate for this type of study as it compares the means of the two conditions within the same individuals.

A Researcher Is Interested in Investigating Whether People Perform Better