Scales are composite measures that combine multiple items or questions into a single score. They are often...
Data Science
One of the common tasks in data cleaning is to create new variables from existing ones, such...
Steps to Creating Variables 1. First, investigate the existing data. Check the codebook or fre. The codebook...
Reasons to label variables and values Let’s see the example from STATA data browser: Data includes numeric...
First, you can see the list of variables in the data in the variable browser on the...
When we use a questionnaire to measure a concept that is not directly observable, such as quality...
Different methods of Inter-rater reliability Inter-rater reliability is used to assess the degree to which different raters...
One of the best ways to improve your programming/coding skills is by practicing with replication code. Luckily,...
A moderated moderation model, or three-way interaction, is an interaction between x, w, and z. In this...
Important Update on May 1st, 2023 Reddit decided to charge API, and Pushshift API is no longer...
Hierarchical regression (also known as sequential regression or nested regression) is a method for building regression models...
Stata has features for analyzing Structural Equation Models (e.g., sem, gsem, or sembuilder), but some advanced analyses...
In the previous post, we learned how easy it is to map a map of the United...
Stata is probably not the best statistical software for geospatial analysis (yes, there are more tools in...
Understanding the measures of segregation If you are viewing this post, you may be interested in creating...
