How to report ANOVA results in APA 7
An ANOVA result places the numerator and denominator degrees of freedom inside the parentheses after F: F(df1, df2). Both F and p are italicized because they are Latin-letter statistical symbols. Partial eta-squared uses the Greek η symbol, so η is not italicized. Report F and partial η² to two decimals and the exact p value to three decimals. Omit the leading zero for p and partial η², but retain it for F.
For a factorial ANOVA, report each main effect and interaction separately. Naming the effect before each statistical result keeps the lines unambiguous. A frequent error is reporting only one degree of freedom or reversing the numerator and denominator values. Another is writing p = .000 when software rounds a very small probability; APA style requires p < .001. Repeated-measures analyses may use corrected, noninteger degrees of freedom, which should be retained rather than rounded away. If you used Greenhouse–Geisser or another correction, explain that correction in the surrounding prose.
Worked example
A one-way ANOVA comparing three groups produced F = 5.74 with 2 and 87 degrees of freedom, p = .005, and partial η² = .12.
Group: F(2, 87) = 5.74, p = .005, partial η2 = .12.
Common questions
Which degrees of freedom go inside F( )?
Both: the numerator (effect) degrees of freedom first, then the denominator (error), as F(df1, df2). Reporting only one, or reversing them, is a frequent error.
How many decimals should I use?
Report F and partial η² to two decimals and the exact p value to three. Omit the leading zero for p and partial η², but keep it for F.
Which symbols are italicized?
F and p are italicized because they are Latin-letter symbols. The Greek η is not.
How do I report a factorial ANOVA?
Report each main effect and interaction separately, naming the effect before each statistical result so every line is unambiguous.
What about repeated-measures corrections?
Corrected degrees of freedom may be non-integers. Keep them rather than rounding them away, and explain a Greenhouse–Geisser or other correction in the surrounding text.