Why will a researcher need more participants when there is a high degree of within-group variability?

a. the scores are spread out within the groups, which makes it more difficult to see differences between groups.

b. the scores are clustered together within the groups, which makes it more difficult to see differences between groups.

c. the scores are spread out within the groups, which makes it easier to see differences between groups.

d. none of the above?

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20 November, 23:23

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Nash · Answer 1

B. the scores are clustered together within the groups, which makes it more difficult to see difference between groups.