Example APA-style Write-up

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Section 4.9 Example APA-style Write-up

The following example demonstrates one acceptable way to report a comparison of two means in APA style.

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Independent Samples t-Test

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An independent samples $t$-test was conducted to examine whether the average number of runs scored differed between the New York Yankees and the New York Mets across the first 20 games of the season. The Mets scored more runs on average ($M = 6.00, SD = 4.79$) than the Yankees ($M = 3.85, SD = 2.13$); however, this difference was not statistically significant, $t(25.9) = 1.80, p = .084\text{.}$ Although the Mets had a higher mean score, this result indicates insufficient evidence that the teams differed in average runs scored.

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Reporting Note:.

The degrees of freedom ($25.9$) reflect a Welch’s $t$-test, which is the default in R and does not assume equal variances between groups.

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