Season: Season 3

S3E18: Aunt Roz’s Guide to Latent Means Models

In this week’s episode Greg and Patrick discuss latent means models to conduct group mean comparisons while controlling for measurement error, which gives you more power and more accurate standardized effect size estimates. Along the way, they also mention Aunt Roz, table 8, naughty pigs, crossing the streams, big twinkies, asbestos, It’s a Small World, …

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S3E17: Logistic Regression: 2 Logit 2 Quit

Greg and Patrick explore the generalized linear model as a powerful framework for building regression models for binary and other discretely distributed dependent variables. Along the way they also discuss stealing property, statistical conspiracy theories, mic drops, coming uncorked, getting punched by biostatisticians, big logistic, tapping out, the Oakland Raiders, being 8.5 feet tall, sheep …

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S3E16: Your COVID Rapid Test Result: Are You Positive You’re Positive?

In today’s episode, Patrick and Greg use the context of COVID rapid tests to discuss issues of sensitivity, specificity, positive and negative predicted values, and the generally questionable utility of test accuracy information. Along the way they also discuss escape rooms, C4, Embassy Suites, palak paneer, 93% accurate, astragali, SAT prep courses, the volume of …

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S3E15: Heywood You Help Me With Negative Residual Variances?

In today’s episode Greg & Patrick discuss the causes, consequences, and potential solutions associated with negative residual variances in factor analyses, a condition commonly called a Heywood case. Along the we way they also discuss vegetarian pepperoni, Jaws Part 2, coffin seat belts, balancing a ship, bad puns, sterilizing needles, dead canaries, hitchhikers, legal depositions, …

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S3E14: Patrick & Greg’s New Year’s Balls Drop

Greg and Patrick, perched in a glass booth high above New York’s Times Square, ring in 2022 with the help of some friends by counting down quantitative New Year’s resolutions. Along the way they also mention QPod catheters, Dr. Ruth Westheimer, groin height, yelling at NPR, Shimmer, O’Nuckles, intellectual gooses, European Quanterati, smoldering corpses, Dilbert, …

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S3E12: The History of Measurement: A Conversation with Derek Briggs

Patrick and Greg have an in-depth conversation with Derek Briggs, from the University of Colorado, about his new book exploring the fascinating and at times uncomfortable history of measurement and the people who helped develop methods we still use today. Along the way they also mention: outsourcing parenting, where do babies come from, hearing colors, …

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S3E10: Observation and Exploration

Patrick and Greg discuss the often forgotten importance of observation and exploration for the purpose of suggesting patterns and forming hypotheses, which can later be refined and rigorously tested within the framework of our well-developed confirmatory machinery. Along the they way they also discuss Orlando road trips, our inner child, crappy glue, melted chocolate, leaning …

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S3E09: Semi-Partially Clarifying Measures of Association in Regression

Patrick and Greg answer a mailbag question about some foundational principles of regression and correlation, specifically the differences among correlation, standardized regression weights, semi-partial correlations, and partial correlations. They also check in with someone from Season 2: Amanda Montoya’s undergrad mentee, Kat. Along the way, they also mention: Ap Olo Gies, mocking by text, particle …

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