Hierarchical regression is a technique we can use to compare several different linear models. The basic idea is that we first fit a…
Stata Statistics Tutorial

 Hypothesis Tests in StataSoftware TutorialsStata Statistics Tutorial
How to Test for Normality in Stata
by Tutor AspireMany statistical tests require one or more variables to be normally distributed in order for the results of the test to be…
 ANOVA in StataSoftware TutorialsStata Statistics Tutorial
How to Perform a MANOVA in Stata
by Tutor AspireA oneway ANOVA is used to determine whether or not different levels of an explanatory variable lead to statistically different results in…
 Regression in StataSoftware TutorialsStata Statistics Tutorial
How to Test for Multicollinearity in Stata
by Tutor AspireMulticollinearity in regression analysis occurs when two or more explanatory variables are highly correlated to each other, such that they do not provide unique or…
 Regression in StataSoftware TutorialsStata Statistics Tutorial
How to Perform Quantile Regression in Stata
by Tutor AspireLinear regression is a method we can use to understand the relationship between one or more explanatory variables and a response variable.…
 Regression in StataSoftware TutorialsStata Statistics Tutorial
How to Create and Interpret a ROC Curve in Stata
by Tutor AspireLogistic Regression is a statistical method that we use to fit a regression model when the response variable is binary. To assess how well a…
 Software TutorialsStata Statistics TutorialVisualizations in Stata
How to Create and Modify Scatterplots in Stata
by Tutor AspireA scatterplot is a type of plot that we can use to display the relationship between two variables. It helps us visualize…
 Software TutorialsStata Statistics TutorialVisualizations in Stata
How to Create and Modify Box Plots in Stata
by Tutor AspireA box plot is a type of plot that we can use to visualize the five number summary of a dataset, which includes:…
 Regression in StataSoftware TutorialsStata Statistics Tutorial
How to Create and Interpret QQ Plots in Stata
by Tutor AspireA QQ plot, short for “quantilequantile” plot, is often used to assess whether or not the residuals in a regression analysis are normally…
 Software TutorialsStata Statistics TutorialVisualizations in Stata
How to Create a StemandLeaf Plot in Stata
by Tutor AspireA stemandleaf plot is a chart we can use to display data by splitting up each value in a dataset into a stem and…