A repeated-measures study using a sample of n = 20 participants would produce a t statistic with df = ____.

Question

A repeated-measures study using a sample of n = 20 participants would produce a t statistic with df = ____.​

BlackTom AI · Accepted Answer

The question asks about the degrees of freedom (df) for a repeated-measures study with n = 20 participants.
In a repeated-measures (paired) t-test, each participant contributes a pair of related observations, and the analysis is performed on the within-subject differences.
For this setup, the df are calculated from the number of subjects minus one, i.e., df = n − 1.
With n = 20, df = 20 − 1 = 19.
It’s also worth noting that the provided answer list is empty in this case, so there are no explicit options to assess here. Generally, for a between-subjects (independent groups) t-test, df would be n1 + n2 − 2, but that formula does not apply to a repeated-measures design.

2025FallC-P-HSE230-66225 Ch 11 Quiz

A repeated-measures study using a sample of n = 20 participants would produce a t statistic with df = ____.

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2025FallC-P-HSE230-66225 Ch 11 Quiz

A repeated-measures study using a sample of n = 20 participants would produce a t statistic with df = ____.​

View Explanation

Log in for full answers

Similar Questions

The degrees of freedom of a 4 x 5 table is:

What happens as the df of a dataset is increased?

​A researcher reports df = 18 for a repeated-measures t statistic. This research study used a total of n = 19 participants.

If the population variance is unknown, then a degree of freedom is lost in the calculation of sample variance.

In a contingency table, what does the degrees of freedom indicate?

Suppose that a study compares the means of two groups. There are 40 males in Group 1 and 35 females in Group 2. The degrees of freedom for this study when using the t-test for the difference between means is:

Based on the information in Question 1, what were the degrees of freedom (DF) for the interaction of color and style, C?

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A repeated-measures study using a sample of n = 20 participants would produce a t statistic with df = ____.

A researcher reports df = 18 for a repeated-measures t statistic. This research study used a total of n = 19 participants.