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Asked by YikOn Cheung on Jul 11, 2024

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A researcher comparing the means of two groups calculates the t-test for independent means and reports the following result: t(22) = -3.54, p <.01. This research study consisted of a TOTAL of ______ participants.

A) 20
B) 22
C) 24
D) 26

T-test

A statistical procedure used to determine if there is a significant difference between the means of two groups under consideration, often used in small sample sizes.

Independent Means

A statistical method comparing the means of two independent groups to assess whether there is a significant difference.

Participants

Participants are individuals who take part in a research study, contributing data for analysis.

  • Ascertain the cumulative number of subjects in an investigation through analysis of degrees of freedom.
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Sydney McDanielsJul 12, 2024
Final Answer :
C
Explanation :
The t-test for independent means indicates that there were two groups in the study. The degrees of freedom (df) is 22, which means that the total number of participants in the study was 22 + 22 = 44. Therefore, the answer is C) 24, which is the closest even number to half of the total number of participants (44/2=22) and represents the sample size of each group.

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