In this episode Patrick and Greg compare and contrast multiple regression and the structural equation model and argue that although regression has brought us far, there are numerous reasons to turn to the SEM to continue to drive us forward. Along the way they also address gad flies, the Louisiana Purchase, Kool-Aid, high school friends, […]
S2E18: Regression — Like That Old High School Friend You’ve Outgrown Read More »
Greg and Patrick ring in the new year with a rambling discussion of univariate and multivariate normality: what it is, when and why we assume it, and does it really matter. (Spoiler alert — it DOES). Along the way, they also discuss statistics history, supplement #2, Larry the Book Shop Guy, Isaac Newton’s BFF, platypuses,
S2E17: Embracing Your Non-Normality Read More »
Greg and Patrick discuss issues of controlling for extraneous variables, by randomization and by design, but especially the challenges and assumptions associated with statistical control. Along the way they also mention drag racing, Volkswagen Bugs, Seabiscuit, Harrison Bergeron, Diet Coke, Janet Jackson, John Denver, gastrointestinal distress, Sewall Wright, and babies and bathwater.
S2E14: Control (Variable) Issues Read More »
Greg and Patrick talk about the control of Type I error rate. Well, more like… they say stuff, change their minds, say stuff, change their minds… and in the end — spoiler alert — reach no unified conclusion whatsoever. But they do manage to hit a number of the relevant issues around Type I error
S2E10: Type I Terror Read More »
Patrick and Greg hold a traditional Irish funeral for multivariate analysis of variance, starting with a heartfelt eulogy in front of family and friends in the church and then moving to a more honest reckoning with Mom and Aunt Dotty at the reception in the school gym following the service. Along with a celebration of
S2E09: MANOVA Must Die Read More »
In this episode Patrick and Greg follow up last week’s discussion of moderation by tackling its partner in crime, mediation, including causal challenges, ways of testing, and how they think about it as part of a larger analytical system. Along the way they also manage to discuss word association, personal grievances, light switches, the Concord,
S2E08: Mediation and the Art of Squid Spleening Read More »
In this episode, Greg and Patrick bicker about moderation and discuss the critical importance of moving our science away from thinking in terms of main effects and towards the conceptualization of the conditions under which an effect might hold. Along the way they also discuss the Carsophagus, Sisyphean tasks, the London Museum, pineapples, 9.8m/sec^2, military
S2E07: Moderation — Well, It Depends Read More »
In this episode Greg and Patrick wander semi-drunkenly around the topic of model-based inference and discuss how this perspective can help move us forward as a scientific discipline. They also somehow manage to discuss explosives, sniffing glue, homemade 787s, catfish noodling, the Ikea helpline, Calvinball, Ludwig Beethoven, Rube Goldberg, hell’s half acre, denouements, and intolerable
S2E05: Model Based Thinking Read More »
The episode begins with what Patrick believes will be a discussion of statistics in the news, but then turns into a surprise attack by Greg that rapidly devolves into a second edition of Pop Quiz (covering scales of measurement, probability and odds, intraclass correlation, null hypothesis significance testing, suppression, and Bayes’ Theorem). In addition to
S2E03: Pop Quiz 2020 — The Big Payback Read More »
In Episode 16 of Quantitude, Patrick and Greg have more fun than is probably socially acceptable when talking about missing data. In addition to embracing the Zen-like paradox of “the presence of missing data,” they also discuss West Point, “is” versus “are,” middle school English teachers, relentless tenacity, talking narwhals, being completely pregnant, taking in
S1E16: Missing Data: (IF EPISODE=16 THEN EPISODE=-999) Read More »
