In this week's episode, Greg and Patrick have great fun talking about the inclusion of time-varying covariates within growth models. They differentiate time invariant from time varying predictors, explore how these are differentially incorporated in the MLM and SEM, and conclude with both the strengths and the limitations of these models in practice. Along the way they also discuss Herb Alpert, incessant complaining, downtown Charlotte, Spinal Tap drummers, back dating checks, John Stuart Mills' corpse, time machines, blind squirrels, making good choices, pokes and prods, twitching eyes, mutually assured destruction, being quant curious, high school hallways, it's not fair, and chewing on your stitches.

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In this week's episode, Greg and Patrick magically find themselves at trivia night in the Rusty Mackerel pub in Teelin, Ireland, where a secret celebrity trivia master puts them on the spot to test their knowledge of statistics and statisticians. Along the way they also discuss St. Paprikash, no back story, Hooker Oklahoma, The Karate Kid 2 soundtrack, the fourth wall, magically delicious, tau or taw, taco inception, Ted 2, the ESPN curse, 4.1% alcohol, lightning rounds, doohickeys, never Belgium, and The Rev.

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In this week's episode Patrick and Greg talk with Ken Bollen who is a Professor of Psychology and Sociology at the University of North Carolina at Chapel Hill. In addition to exploring topics including home made rockets, sitars, and Jimi Hendrix, Ken talks with them about his brand new book Elements of Structural Equation Models and how he aspired to capture the many recent developments in SEM that have occurred since his monumental 1989 book on the same topic. Along the way they also discuss brushes with greatness, naughty bits, Mick Jagger, sharing a urinal, marginal notes, stranded in Brussels, matching t-shirts, asbestos walls, ruby rods, choosing between physics, chemistry, or terrorism, General Motors, the Berlin Wall, dust cover quotes, the fine print, side effects, elevated heart rates, cited but not read, Ravi Shankar, and matching BMWs.

Stay in contact with Quantitude!

• Web page: quantitudepod.org
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