Uncategorized – Page 13

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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S3E08: Statistical Degrees of Freedom…An Intimate Stranger

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In today’s episode Patrick and Greg talk about statistical degrees of freedom: what they represent, how they are computed, and the importance they play in daily life. Along the way they also mention color blindness, the Skinnylicious menu, Kevin Bacon, Elmo’s Diner, the flatties, Amtrak, drinking Guinness at room temperature, sudoku, courage, paying the reaper,

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S3E07: In Defense of Researcher Degrees of Freedom

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In this episode, Greg and Patrick discuss the many places where researchers make decisions throughout the research process, and they weigh the pros and cons of those researchers having such decision-making freedom. Along the way, they also mention Lucky Charms, frozen waffles for dinner, the fifth down, forking paths, Dirty Deeds Done Dirt Cheap, sharks

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S3E06: Item Parcels: What Could Possibly Go Wrong?!

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In today’s episode Patrick & Greg talk about the use of item parcels in latent variable modeling: what they are, what might motivate you to use them, and what unexpected complications can arise. Along the way they also mention wheel extenders, walking toward the light, logorrhea, party bands, corpse sniffing dogs, boxes of human heads,

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S3E05: Pop Quiz 3: Ethan’s Revenge

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What starts as a friendly check-in with our intern Ethan McCormick in the Netherlands turns into Ethan’s Pop Quiz Revenge around the themes of statistical paradoxes and distributions. Along the way, Greg and Patrick also discuss headlamps, airport carousels, prostrate vs. prostate, operatic ambulances, ungulates, how X-mas got its X, Cobra Kai, bromeo, metric time,

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S3E04: Two Time Point Data: What Is Your Quest?

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Patrick and Greg talk about the potential advantages and disadvantages of alternative approaches to analyzing two time-point data. They discuss traditional models for raw and residualized change scores, and describe how each of these remains baked into the soul of contemporary models for repeated measures data. Along the way they also mention: 24 inch pizza

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S3E03: Principal Components Analysis is your PAL

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Greg and Patrick discuss Principal Components Analysis: what it is, what it absolutely isn’t, and what kind of cool things it can do in its own right. Along the way, they discuss Twinkle Twinkle Little Star, the division symbol, Spider Pig, croissants & skewers, doing a nickel in the big house, jumping the starter solenoid,

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S3E02: Johnson-Neyman Regions of Significance

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In this episode, Patrick leads Greg and the rest of us through the incredibly cool and powerful topic of regions of significance, a way to help unpack under what moderating conditions treatments and variable relations are statistically significant. Along the way, they also mention: parallelism, Olivia Newton-John, going to the wrong church, laws in Vermont,

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S3E01: Leaping to Statistical Conclusion Validity

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In the inaugural episode of Season 3, Patrick and Greg argue (more than usual) about statistical conclusion validity: what it is, what affects it, and how it fits in with other types of validity. Along the way they also mention: FrogFest2021, fostering illusions, coughing up a thorax, entrée vs. entry, 50 hours of community service,

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S2E37: A Summer of Love History of Quant, part 3

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In this, the third and final episode of SummerQamp, Greg and Patrick embark on a cross country journey in a VW van in quest of the Summer of Love. Along the way they explore three lines of historical development that ultimately come together to close out the 1960’s: multiple regression, path analysis, and confirmatory factor

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