If you’ve tried coding in Stata, you may have found it strange. The syntax rules are straightforward, but different from what I’d expect. I had ... Continue Reading
If you’ve tried coding in Stata, you may have found it strange. The syntax rules are straightforward, but different from what I’d expect. I had ... Continue Reading
When analyzing longitudinal data, do you use regression or structural equation based approaches? There are many types of longitudinal data and ... Continue Reading
Ever consider skipping the important step of cleaning your data? It's tempting but not a good idea. Why? It's a bit like baking. I like to bake. ... Continue Reading
Structural Equation Modeling (SEM) is a popular method to test hypothetical relationships between constructs in the social sciences. These constructs ... Continue Reading
There are many designs that could be considered Repeated Measures design, and they all have one key feature: you measure the outcome variable for each ... Continue Reading
From our first Getting Started with Stata posts, you should be comfortable navigating the windows and menus of Stata. We can now get into programming ... Continue Reading
Regression is one of the most common analyses in statistics. Most of us learn it in grad school, and we learned it in a specific software. Maybe SPSS, ... Continue Reading
When you draw a graph- either a bar chart, a scatter plot, or even a pie chart, you have the choice of a broad range of colors that you can use. R, ... Continue Reading
I recently received a great question in a comment about whether the assumptions of normality, constant variance, and independence in linear models are ... Continue Reading
The objective for quasi-experimental designs is to establish cause and effect relationships between the dependent and independent variables. However, ... Continue Reading
A well-fitting regression model results in predicted values close to the observed data values. The mean model, which uses the mean for every predicted ... Continue Reading
In part 3 of this series, we explored the Stata graphics menu. In this post, let's look at the Stata Statistics menu. Statistics Menu Let’s use ... Continue Reading
Do you ever wish your data analysis project were a little more organized? ... Continue Reading
Tell me if you can relate to this: You love your field of study, you enjoy asking the big questions and discovering answers. But, when it comes to ... Continue Reading
If you have run mixed models much at all, you have undoubtedly been haunted by some version of this very obtuse warning: “The Hessian (or G or D) ... Continue Reading
One of those tricky, but necessary, concepts in statistics is the difference between crossed and nested factors. As a reminder, a factor is any ... Continue Reading
In statistical practice, there are many situations where best practices are clear. There are many, though, where they aren’t. The granddaddy of these ... Continue Reading
There are not a lot of statistical methods designed just to analyze ordinal variables. But that doesn't mean that you're stuck with few options. ... Continue Reading
One issue in data analysis that feels like it should be obvious, but often isn't, is setting up your data. The kinds of issues involved ... Continue Reading
Interactions in statistical models are never especially easy to interpret. Throw in non-normal outcome variables and non-linear prediction functions ... Continue Reading
Do you need sample sizes calculated for a grant or thesis proposal? Or simply to make sure you're appropriately sizing your study? You know how ... Continue Reading
Want some 1-on-1 time with one of our consultants? The Analysis Factor website is full of information about statistics and doing data analyses. But ... Continue Reading
statistical consulting Sometimes you need one-on-one intensive guidance. With ... Continue Reading
Hourly Statistical Consulting For when you need guidance and advice for a statistical plan or analysis. Perfect if you have: a need for help to ... Continue Reading
Linear Regression in SPSS A live, 3-session online tutorial, starts April 2nd, 2024 Enroll Now! You open SPSS menus for Regression and ... Continue Reading
Live, Currently Enrolling **** No Live Seminars Currently Scheduled **** Available Seminars Types of ... Continue Reading
Enrolling Linear Regression in SPSS Instructor: Kat Caldwell Stage: 2, Linear Models Software: SPSS Live Sessions: Tuesdays, ... Continue Reading
Levels of Measurement and Types of Variables Training Seminar Understand the nuances in determining the types of variables you're working with and ... Continue Reading
Types of Regression Models: Training Seminar 18 Types of Regression Models — What They Are and When to Use Them Enroll Now! Linear, Logistic, ... Continue Reading
Crossed and Nested Factors Training Seminar Understand the difference between crossed and nested factors in multilevel, mixed models, and ... Continue Reading
Multicollinearity Training Seminar Learn best practices for finding and fixing issues caused by multicollinearity in regression models Enroll ... Continue Reading
Introduction to Data Analysis using Stata 9 Module Tutorial — Currently Available Enroll Now! As a researcher, it’s critical for you to know ... Continue Reading
Introduction to Data Analysis with SPSS A 10-Module online tutorial with direct instructor support Enroll Now! OVERWHELMED trying to run ... Continue Reading
effect size statistics, power and sample calculations, and statistical inference Use these resources to learn with The Analysis Factor. Listed below ... Continue Reading
structural equation modeling resources Listed below are workshops, trainings, and articles to help you learn Structural Equation Modeling (SEM). SEM ... Continue Reading
how can The Analysis Factor help you with statistics? ... Continue Reading
Currently Enrolling Analyzing Repeated Measures Data: ANOVA and Mixed Model Approaches Instructor: Karen Grace-Martin Stage: ... Continue Reading
resources for fundamental statistics Use the resources here to learn fundamental statistics with The Analysis Factor. Listed Below are our Workshop, ... Continue Reading
Resources to improve your data analysis practice and skills As a data analyst, it's not enough to understand statistics or to be able to use the ... Continue Reading
Results Section Review Submit your paper with confidence that your results section is statistically sound and well written. Perfect if: You're ... Continue Reading