Easy
ANOVA (One-Way and Two-Way)
SPSS
Free
A researcher compares mean exam scores across three study-method groups (Flashcards, Practice Tests, Re-reading) using a one-way ANOVA. In SPSS, the ANOVA table shows: F(2, 57) = 4.20, Sig. = .019. What is the correct conclusion at α = .05?
A
Fail to reject H₀: the three population means are equal, because .019 is greater than .05
B
Reject H₀: at least one group mean differs from the others
C
Reject H₀: all three group means are different from each other
D
Fail to reject H₀: because ANOVA cannot be used unless there are exactly two groups