A Researcher Conducts a Repeated-Measures Study to Evaluate a Treatment

question 34

Multiple Choice

A researcher conducts a repeated-measures study to evaluate a treatment with a sample of n = 16 participants and obtains a t statistic of t = 1.94.The treatment is expected to increase scores and the sample mean shows an increase.What is the correct decision for a hypothesis test using α = .05?​

• A)​Reject the null hypothesis with a one-tailed test but fail to reject with two tails.
• B)​Reject the null hypothesis with either a one-tailed or a two-tailed test.
• C)​Fail to reject the null hypothesis with either a one-tailed or a two-tailed test.
• D)​Fail to reject the null hypothesis with a one-tailed test but reject with two tails.

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Definitions:

Varicose Veins

Distended veins that result when vein valves are destroyed and blood pools in the veins, causing these veins to dilate.

Elastic Stockings

Specially designed hosiery that exerts pressure on the legs to improve blood flow, often used to prevent or treat venous disorders.

Vascular Disease

A class of diseases of the blood vessels, often leading to a reduced flow of blood to organs and tissues.

Fungal Infection

An infection caused by fungi, ranging from superficial skin conditions to more serious systemic infections.