Asynchronous Access to Recent Workshops
Missed a workshop? No problem. Register for any workshop and get access to its replays and materials for 6 months following the last day of that workshop.
Network Analysis
Replay Access Available until
November 21, 2021
Recorded May 17-21, 2021
Instructor: Doug Steinley
Multilevel Modeling
Replay Access Available until
November 21, 2021
Recorded May 17-21, 2021
Instructors: Dan Bauer & Patrick Curran
Latent Class/Cluster Analysis and Mixture Modeling
Replay Access Available until
November 28, 2021
Recorded May 24-28, 2021
Instructors: Dan Bauer & Doug Steinley
Applied Measurement Modeling
Replay Access Available until
November 28, 2021
Recorded May 24-28, 2021
Instructors: Patrick Curran & Greg Hancock
Applied Research Design Using Mixed Methods
Replay Access Available until
December 4, 2021
Recorded June 3-4, 2021
Instructor: Greg Guest
Longitudinal Structural Equation Modeling
Replay Access Available until
December 11, 2021
Recorded June 7-11, 2021
Instructors: Dan Bauer & Patrick Curran
Applied Qualitative Research
Replay Access Available until
December 18, 2021
Recorded June 14-18, 2021
Instructors: Greg Guest & Emily Namey
Introduction to Quantitative Meta-Analysis
Replay Access Available until
December 18, 2021
Recorded June 15-18, 2021
Instructor: Tasha Beretvas
News & Updates
I fit a multilevel model and got the warning message “G Matrix is Non-Positive Definite.” What does this mean and what should I do about it?
Anyone who uses multilevel models will eventually encounter the dreaded “G matrix is non-positive definite” message (or “Tau Matrix” or “Psi Matrix”, depending on the labeling used by your software). This anxiety-inducing warning is often a signal that something is wrong in your model that needs fixing. With an NPD G matrix, the obtained estimates usually reflect an “improper” solution...
Introduction to Latent Curve Modeling at Society for Psychotherapy Research
On June 23, 2021, Patrick and Dan conducted a pre-conference workshop, Introduction to Latent Curve Modeling, at the 52nd Annual International Meeting of the Society for Psychotherapy Research. A copy of the notes for participants is available at https://centerstat.org/wp-content/uploads/2021/06/BauerCurran_handouts.pdf for those who may be interested.
I’m reporting within- and between-group effects in from a multilevel model, and my reviewer says I need to address “sampling error” in the group means. What does this mean, and what can I do to address this?
This is a long-neglected topic, and one that is receiving increasing attention in the methodological literature. The problem that the reviewer is referring to is that the usual ways we obtain within- and between-group effects for lower-level predictors within the multilevel model (MLM) oftentimes generate biased estimates. The same issue arises with any form of clustering, such as when trying...
My advisor told me I should group-mean center my predictors in my multilevel model because it might “make my effects significant” but this doesn’t seem right to me. What exactly is involved in centering predictors within the multilevel model?
This is an excellent question and the topic of centering is often a source of confusion when using multilevel models (MLMs) in practice. This confusion is in part due to the need to address a complexity that arises within the MLM but is not relevant within the traditional multiple regression model: when modeling the effect of a lower-level predictor on...
A reviewer recently asked me to comment on the issue of equivalent models in my structural equation model. What is the difference between alternative models and equivalent models within an SEM?
Differentiating between alternative models and equivalent models has long been a point of confusion in many research applications. Although the challenge of equivalent models can arise within almost any analytic setting, this is particularly salient within the structural equation model (or SEM). It is helpful first distinguish between alternative and equivalent models. To begin, one of the greatest strengths of...
New Just-in-Time Workshop for Self-Paced Learning on Structural Equation Modeling
In May of 2020, Dan Bauer and Patrick Curran offered a free three-day Livestream course titled Introduction to Structural Equation Modeling. There were 3,000 participants from 38 countries and six continents. Because many people were unable to register at the time, we are now offering the recordings and materials from this three-day class for just $49 (simply to cover infrastructure...
New Class on Applied Research Design Using Mixed Methods
We've often been asked if we could offer a class on the foundations of research methods and design. We're thus excited to offer Applied Research Design Using Mixed Methods by Greg Guest, acclaimed research scientist and instructor (and proud Canadian). Below, Greg tells us about his background, his class, and what he hopes participants will gain from taking the workshop.
Announcing Fall 2020 Workshops
For the first time, CBA will be hosting a Fall online workshop series this December, including a new 2-day workshop on Applied Research Design using Mixed Methods from acclaimed instructor Greg Guest. The course schedule is: December 2-4: Introduction to Multilevel Modeling December 7-8: Applied Research Design using Mixed Methods December 9-11: Introduction to Longitudinal Structural Equation Modeling December 14-16: Introduction to...
Quantitude Podcast Episode Dedicated to Diversity in Academia
Patrick Curran and Greg Hancock have dedicated a recent episode of their quantitative methods podcast, Quantitude, to diversity and equity in academia. As part of their summer Quanti•Qamp episode series, they welcome special guest Dr. A. Nayena Blankson, Professor of Psychology at Spelman College, to discuss how we can capitalize on the current national conversation about race and equity to...
CBA Completes 3-Day Intro to SEM Webinar
From May 6 to 8, CBA conducted a free 3-day Introduction to Structural Equation Modeling webinar, drawing participants from all around the world. Just for fun, we generated the map below to show the countries of origin of participants. To receive notices about future workshop offerings like this, follow us on twitter or facebook or subscribe to our newsletter ("Receive...
Subscribe to Our Newsletter
Please enter your name.
Please enter a valid email address.
Something went wrong. Please check your entries and try again.