¿Qué es el ANÁLISIS DE VARIANZA en SPSS?

SUBSCRIBE FOR MORE POLITICAL DATA VIDEOS! Created by: Christian Chiroque Ruiz Analysis of Variance in SPSS (ANOVA and Kruskal-Wallis) | SPSS 7 Tutorial In this video, we'll learn how to compare means across multiple population groups. To do this, we use the two tools provided by SPSS. One-way ANOVA, which is the parametric method, and the other, the Kruskal-Wallis test, which is the nonparametric method. To apply both tests, we'll analyze the steps in a decision flowchart. For one-way ANOVA, after considering that our variable of interest has a normal distribution, we apply the ANOVA statistical test, then analyze the variance across groups, and finally perform multiple comparison tests (also called post hoc tests). This type of test helps us identify, once we have confirmed that there are at least two groups with different means, which groups have the difference. The types of post hoc tests will depend on whether we assume equal variances or not. In the case of the nonparametric method, we use the Kruskal-Wallis test. Once the null hypothesis (the means in all groups are equal) is rejected, we display the multiple comparisons test (default). Database used: Lapop Peru