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 »
Patrick and Greg open with a disagreement about time travel movies, which then somehow devolves into a discussion of alternative approaches to modeling longitudinal data. They agree that a core issue to consider is the separation of within-person and between-person components of change over time, both theoretically and analytically. Throughout the discussion they also mention
S2E02: The Auto-Regressive Cross-Lagged Horror Picture Show Read More »
Greg and Patrick are inspired by possibly the greatest Western movie ever filmed as they navigate The Good, The Bad, and The Ugly of factor analysis. In addition to arguing that exploratory factor analysis isn’t really exploratory and confirmatory factor analysis isn’t really confirmatory, they adroitly traverse topics including sabbatical do-overs, Corona Academy, leeches, tall
S1E22: Factor Analysis — The Good, The Bad, & The Ugly Read More »
Greg and Patrick waste an hour of your time drunkenly wandering along the dangerous cliffs overlooking mixture modeling. In addition to exploring the potential promises and unadulterated dangers of mixture models as a mode of scientific inquiry, they also mention drama nerds, hunchbacks, date night for the Lincolns, name dropping, UConn women’s basketball, inductive-deductive wishin’-and-a-hopin’,
S1E20: Finite Mixture Modeling & Sir Mixture-A-Lot Read More »
Greg and Patrick start with what seems like a reasonable metaphor linking musical compositions to planned missing data designs, and then they proceed to beat it to death. Then, just when you think they’ve buried it, they dig it back up and beat the carcass some more before eventually just running out of time. In
S1E17: Planned Missing Designs (or, How to Beat a Metaphor to Death) 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 »
Patrick and Greg take on the topic of model evaluation and fit, particularly as applied to structural equation models. They also discuss compulsive counting, mashed potatoes, letting the horses out of the barn, building model 747s, Jenga, Moses’s third tablet, the Pirate Code, demon conferences, and Roo Mates.
S1E14: Model Fit & The Curse of the Black Pearl Read More »
In this episode, Patrick and Greg respond to a call-in question that raises a host of issues revolving around measurement invariance testing. In addition to complaining about horrible terminology commonly used in quantitative methodology, they also address pirate mothers, irreverance, time machines, quadruple negatives, buying firewood, digging up bodies, the Schotz clock, and dumpster fires.
S1E12: Measurement (Non)Invariance — Can We Ever Fail to Not Incorrectly Reject It? Read More »
In Episode 6 of Quantitude Greg and Patrick take their very first phone-in question, which seems to confuse both of them as they are on the computer and not the phone. Regardless, they talk with Tessa from the University of Maryland about her question of how to best use modification indices when fitting confirmatory factor
S1E06: Model Modification and Whac-a-Mole Read More »
