A researcher performs a study with independent variable A as a between-subjects

Question

A researcher performs a study with independent variable A as a between-subjects variable and independent variable B as a within subject variable. If a=4, b=3, and n=10, how many total subjects are needed for the study?

a) 120

b) 10 (was wrong answer)

c) 40

d) 30

A researcher performs a study with independent variable A as a between-subjects variable and independent variable B as a within subject variable. If a=4, b=3, and n=10, how many total subjects are needed for the study?

a) 120

b) 10 (was wrong answer)

c) 40

d) 30

Explanation / Answer

The total number of subjects that would be needed for the study should involve all the possible combinations.

So the total number of subjects that would be needed for the study would be the Lowest Common Multiple of 4,3 and 10 which is 120.

Hence option (a) is correct.

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