A Repeated-Measures Study Comparing Two Treatments with a Sample of N

question 35

Multiple Choice

A repeated-measures study comparing two treatments with a sample of n = 4 participants produces a mean of M = 18 with SS = 24 for the scores in the first treatment,a mean of M = 14 with SS = 18 for the scores in the second treatment,and a mean of M_D = 4 with SS = 12 for the difference scores.What is the estimated standard error for the sample mean difference?

• A)4
• B)3
• C)2
• D)1

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Definitions:

Standard Deviation

A measure of the amount of variation or dispersion of a set of values; a low standard deviation indicates that the values are close to the mean.

Population

The complete set of items or individuals that are the objects of a statistical study.

Simple Random Sample

A subset of a larger population in which every member has an equal chance of being selected, ensuring the sample’s representativeness.

Annual Salary

The total amount of money that an individual earns in one year from their job before taxes and other deductions.