9. ANOVA

1. Click on ANOVA in the Statistics category.

1. Choose the analysis method.

• One-way ANOVA / Two-way ANOVA

• ANCOVA

1. Display: Visualize the results.

2. Code View: Preview the generated code.

3. Data View: Preview the generated data.

4. Run: Execute the code.

---

One-way ANOVA / Two-way ANOVA

1. Data: Select the data for analysis. You can choose data that satisfies specific conditions through Subset.

2. Dependent Variable: Choose the dependent variable.

3. Factor: Select the factors. For Two-way ANOVA, choose factors A and B.

4. Significance Level: Enter the significance level. (default: 0.05)

5. Post hoc analysis: If there is a statistically significant difference in the mean between groups, go deeper to see which groups are different.

---

ANCOVA

1. Install Package: Automatically install the required packages for analysis.

2. Data: Select the data for analysis. You can choose data that satisfies specific conditions through Subset.

3. Dependent Variable: Choose the dependent variable.

4. Factor: Select the factors.

5. Covariate: Choose the covariate.