Unit 3 · Compare groups
How to run a one-way ANOVA in SPSS
Run a one-way ANOVA in SPSS, read the ANOVA table, calculate eta squared and report F in APA style.
Pro lessonAbout 5 minutes6 practice questions
One-way ANOVA
Use it to compare the means of three or more independent groups, such as exam scores under Lecture, Seminar and Online teaching.
One-Way ANOVA
Contrasts…Post Hoc…3Options…4Bootstrap…
✓Estimate effect size for overall tests5
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- 1
Dependent ListThe Scale outcome, such as score.
- 2
FactorThe grouping variable with three or more groups.
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Post Hoc…Follow-up tests that tell you which groups differ. That's the next lesson.
- 4
Options…Tick Descriptive, Homogeneity of variance test and Means plot. Welch is your backup if variances are unequal.
- 5
Estimate effect sizeAdds eta squared (η²): how much of the variation in scores the groups explain.
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