Since we are working with your research on Grammarly's impact on writing, here is a manual output for a Paired Samples T-Test. This dataset represents the average number of...
Since we are working with your research on Grammarly's impact on writing, here is a manual output for a Paired Samples T-Test. This dataset represents the average number of grammatical errors found in a 500-word essay before and after students used the tool.
T-Test Output: The Impact of Grammarly on Writing Accuracy
1. Descriptive Statistics
| Condition | N | Mean (M) | Std. Deviation (SD) |
| Pre-test (No Grammarly) | 10 | 14.20 | 3.12 |
| Post-test (With Grammarly) | 10 | 6.80 | 2.44 |
2. Inferential Statistics
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$t$-value: $t(9) = 6.45$
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Degrees of Freedom ($df$): 9
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$p$-value: $p < .001$
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Effect Size (Cohen’s $d$): $d = 2.04$ (Large effect)
3. APA-Style Summary
A paired-samples t-test was conducted to evaluate the impact of Grammarly on students' writing accuracy. There was a significant decrease in grammatical errors from the pre-test ($M = 14.20$, $SD = 3.12$) to the post-test ($M = 6.80$, $SD = 2.44$), $t(9) = 6.45$, $p < .001$, $d = 2.04$.