How to report a t test in APA 7
An APA-style t-test result reports the test statistic with its degrees of freedom in parentheses, followed by the exact p value, an effect size, and—when available—a confidence interval. Italicize the Latin statistical symbols t, p, d, M, and SD. The confidence-interval label itself is not italicized. Because t, Cohen's d, means, standard deviations, and unstandardized confidence limits can exceed 1, they retain a leading zero. The p value does not: write p = .032, not p = 0.032.
Report exact p values to three decimal places unless the value is below .001. In that case, write p < .001; never write p = .000. A common mistake is omitting df, even though it is essential for interpreting the statistic. Another is mixing one-tailed and two-tailed values. This formatter defaults to a two-tailed recomputation and offers a one-tailed toggle so the consistency note fits the hypothesis you actually tested.
Worked example
Two independent groups had means of 24.60 and 21.80, with standard deviations of 4.10 and 3.70. The test returned t = 2.18 with 58 degrees of freedom, p = .033, Cohen's d = 0.57, and a 95% CI from 0.22 to 0.92.
Group 1 (M = 24.60, SD = 4.10) and Group 2 (M = 21.80, SD = 3.70) differed, t(58) = 2.18, p = .033, d = 0.57, 95% CI [0.22, 0.92].