9. ANOVA

1. Click on ANOVA in the Statistics category.

2. Choose the analysis method.

• One-way ANOVA / Two-way ANOVA

• ANCOVA

3. Display: Visualize the results.

4. Code View: Preview the generated code.

5. Data View: Preview the generated data.

6. Run: Execute the code.

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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.

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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.