Manova stata

A one-way ANOVA is used to determine whether or not there is a statistically significant difference between the means of three or more independent groups.

This type of test is called a one-way ANOVA because we are analyzing how one predictor variable impacts a response variable.

If we were instead interested in how two predictor variables impact a response variable, we could conduct a two-way ANOVA.

This tutorial explains how to conduct a one-way ANOVA in Stata.

Example: One-Way ANOVA in Stata

In this example we will use the built-in Stata dataset called systolic to perform a one-way ANOVA.

This dataset contains the following three variables for 58 different individuals:

• Drug used
• Patient’s disease
• Change in systolic blood pressure

We will use the following steps to perform a one-way ANOVA to find out if the type of drug used leads to a significant impact in the change in systolic blood pressure.

Step 1: Load the data.

First, load the data by typing webuse systolic in the command box and clicking Enter.

Step 2: View the raw data.

Before we pe

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