Patrick Curran

S4E14 Growth Trajectory Estimates…What’s My Line?

In this week’s episode Greg and Patrick explore all the ways they lie about things when they teach, not the least of which is that there are actually no individual growth trajectories estimated in an individual trajectory growth model. They discuss why this is, how individual trajectory estimates can be obtained, and how these might […]

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S4E13 Model-Based Power Analysis…The Power of *What*

In this week’s episode Greg and Patrick revisit a topic they addressed in their 2nd-ever episode: statistical power. Here they continue their discussion by attempting to clarify the power of what, and they explore ways of obtaining meaningful power estimates using the structural equation modeling framework. Along the way they also discuss tearing arms off, German

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S4E12 Secret Father Christmas Actually

In this week’s episode the employees of Quantitude International, including some very special guests, treat Greg and Patrick to a Secret Santa (ahem….secret Father Christmas) office party that they will not soon forget. Along the way they also mention mince meat pies, bangers, gits and tossers, Qurling (trademark pending), Vengeance Spice, hostage negotiation, Kevlar, Cantucky,

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S4E11 The Centrality of Noncentral Distributions

In today’s episode, Patrick and Greg talk about those critical distributions that often go un-discussed — noncentral distributions — including their relation to the more familiar central distributions, their role in power and sample size determination, and how they are used in assessing data-model fit. Along the way they also mention back porch reading, latent

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S4E10 Test Driving Model Identification

In today’s episode, Greg and Patrick talk about model under-, just-, and over-identification, starting with the algebraic foundations and moving into implications for the practice of structural equation modeling. Along the way they also mention shagging cars, new Ferraris, bank statements, prerecorded reactions, Quantitude implied contract, necessary & sufficient, walk of shame, Patrick’s Roz impression,

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S4E09 Intensive Longitudinal Data: Be Careful What You Wish For

In today’s episode Greg and Patrick talk about that sweet spot between panel designs and time series designs, intensive longitudinal data, both the logistical and analytical challenges but more importantly its tremendous potential.  Along the way they also discuss camp fire face-plants, fear of horses, your spare eyelid, polishing your Nobel Prize, ripples in a pond,

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S4E08 Missing Data: The New State Of The Art With Craig Enders

In this week’s episode Greg and Patrick get to explore modern methods for missing data analysis while belaboring quotes from Top Gun with their guest Craig Enders from the University of California at Los Angeles. Craig looks back over the past 20 years of developments in missing data analysis to discuss what has worked, what

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S4E07 The Quanti-House of Horror

In this week’s Halloween-themed episode, Greg and Patrick have fun talking about things in their academic jobs that scare them, from things that are a little scary to things that they find absolutely terrifying. Along the way they also discuss Mrs. Kopicky’s caramel popcorn balls, Wolf of Wall Street, Kenny T, forgetting you’ve told a

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S4E05 Moderated Nonlinear Factor Analysis: A Conversation with Dan Bauer

In this week’s episode Greg and Patrick spend a wonderful, if not at times awkward, hour talking with Dan Bauer about the genesis, application, and future directions of the what may be the world’s worst acronym: MNLFA, or moderated nonlinear factor analysis. Along the way they also discuss unsolicited help from teenagers, gold stars, acronyms,

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