Interactions in statistical models are never especially easy to interpret. Throw in non-normal outcome variables and non-linear prediction functions and they become even more difficult to understand. (more…)
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Member Training: Interactions in Poisson and Logistic Regression – Part 2
December 1st, 2023 by Kim Love
Member Training: Frailty Models
November 2nd, 2023 by TAF Support
Most survival analysis models for time-to-event data, like Cox regression, assume independence. The survival time for one individual cannot influence the survival time for another.
This assumption doesn’t hold in many study designs. You may have animals clustered into litters, matched pairs, or patients in a multi-center trial with correlated survival times within a center.
Member Training: Group Comparisons
August 31st, 2023 by guest contributer
How do you know which method to use when you want to compare groups?
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Member Training: Using Macros, Loops, and Functions in Stata to Manage Your Data Software Tutorial
March 31st, 2023 by TAF Support
Many data sets are challenging and time consuming to work with because the data are seldom in an optimal format.
Member Training: Moderated Mediation, Not Mediated Moderation
February 28th, 2023 by TAF Support
Moderated mediation, also known as Conditional Process Modeling, is great tool for understanding one type of complex relationship among variables.
Member Training: Introduction to Stata Software Tutorial
September 30th, 2022 by TAF Support
In this 8-part tutorial, you will learn how to get started using Stata for data preparation, analysis, and graphing. This tutorial will give you the skills to start using Stata on your own. You will need a license to Stata and to have it installed before you begin.