TAF Support

Getting Started with Stata Tutorial #10: Four Commands to Create New Variables in Stata

April 29th, 2025 by

From our last article, you should feel comfortable with the idea of editing and saving data sets in Stata. In this article, we’ll explain how to create new variables in Stata using replace, generate, egen, and clonevar.

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Getting Started with Stata Tutorial #9: Saving, Reordering, and Dropping Data

March 17th, 2025 by

Stata makes it a breeze to edit or clean your data. If you’re unfamiliar with using data sets in Stata, check out these blog posts to get a good grasp on importing and browsing data in Stata.

For this tutorial we will be using Stata’s “auto” data set. If you haven’t loaded it in yet, type

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Member Training: Confirmatory Factor Analysis

March 3rd, 2025 by

There are two main types of factor analysis: exploratory and confirmatory.

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Member Training: Introduction to Binary Logistic Regression

December 3rd, 2024 by

Binary logistic regression is one of the most useful regression models. It allows you to predict, classify, or understand explanatory relationships between a set of predictors and a binary outcome.
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Member Training: Introduction to Item Response Theory and Rasch Models

November 1st, 2024 by

How do you know if the items of a test are hard or easy; fair or biased; accurate at measuring ability or not? 

Item Response Theory (IRT).

In this training, you will see, with real life examples, how IRT answers these questions to assess a test.

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Member Training: Types of Longitudinal, Repeated Measures, and Time Series

October 2nd, 2024 by

How do you know when to use a time series and when to use a linear mixed model for longitudinal data?

What’s the difference between repeated measures data and longitudinal?
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