One Way to Increase the Power of a Planned Study

question 11

Multiple Choice

One way to increase the power of a planned study by altering the amount of variance within each of the two distributions is to:

• A)use the variance of the experimental group instead of the variance from the comparison distribution
• B)plan to exclude any scores in the sample that are not outliers
• C)use more precise measures
• D)reduce the number of items on any questionnaires employed

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Definitions:

Androgens

Androgens are a group of steroid hormones that play a key role in male traits and reproductive activity, present in both males and females.

Testes

The male reproductive glands where sperm and male sex hormones (such as testosterone) are produced.

Cryptorchidism

A condition where one or both of the testes fail to descend from the abdomen into the scrotum before birth.

Premature

Occurring or done before the usual or expected time, often referring to actions or events that happen earlier than anticipated.