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Statistical Reporting Standards

Complete Statistical Reporting

The APA Publication Manual and JARS (Journal Article Reporting Standards) require: exact p-values (p = 0.034, not p < 0.05), effect sizes with confidence intervals, sample sizes for all analyses, test statistics (t, F, χ², etc.), degrees of freedom, and a clear description of the analysis method. A complete report reads: 'Participants in the treatment group (M = 74.2, SD = 12.1, n = 45) scored significantly higher than the control group (M = 68.5, SD = 11.8, n = 43), t(86) = 2.27, p = .026, d = 0.48, 95% CI [0.06, 0.90].' This single sentence communicates: what was found, how large the effect is, how precise the estimate is, and whether it is statistically significant. Incomplete reporting hides information needed to evaluate the finding.

Statistical Reporting Standards

Complete Statistical Reporting

The APA Publication Manual and JARS (Journal Article Reporting Standards) require: exact p-values (p = 0.034, not p < 0.05), effect sizes with confidence intervals, sample sizes for all analyses, test statistics (t, F, χ², etc.), degrees of freedom, and a clear description of the analysis method. A complete report reads: 'Participants in the treatment group (M = 74.2, SD = 12.1, n = 45) scored significantly higher than the control group (M = 68.5, SD = 11.8, n = 43), t(86) = 2.27, p = .026, d = 0.48, 95% CI [0.06, 0.90].' This single sentence communicates: what was found, how large the effect is, how precise the estimate is, and whether it is statistically significant. Incomplete reporting hides information needed to evaluate the finding.