This week Patrick and Greg talk about one of Patrick’s favorite papers, which is a masterpiece not only in terms of its quantitative contribution in understanding the differential role of factor scores, but also as a model of clear and concise technical communication. Along the way they also mention Sandals and Motel 6, hotel hangers […]
S6E09 Masterpiece Theatre: Skrondal & Laake (2001) Read More »
In this week’s episode Greg and Patrick talk about the advantages of recent structural after measurement work, allowing us to break apart traditional structural equation models to analyze the measurement and structural portions separately. Along the way they also discuss the baseball playoffs, fire pit face plants, the gluten cabinet, pumpkin inadequacy, a soupçon of
S6E07 Structural After Measurement and the Muffin of Truth Read More »
In this week’s episode, Greg and Patrick talk about person-centered methods versus variable-centered methods with the punch line being that the historically contentious distinction between these two is unnecessary, unhelpful, and even counter productive. Along the way they also discuss lost luggage, Sabena Air t-shirts, the Inquisition, honey badger Americans, Fredrik Backman, punch lines, a
S6E04 Person-Centered vs. Variable-Centered Analysis Read More »
In this week’s episode Greg and Patrick explore the surprisingly tricky topic of multiple choice items: how to write them, how not to write them, and giving a well written test the respect it deserves. Along the way the also discuss recognizing emotions, laying down 50 feet of rubber, glass animals, rewriting your kid’s test,
S6E03 Multiple Choice Is ______ Read More »
In this week’s episode Greg and Patrick talk about different ways of assessing inter-rater agreement and reliability among two or more raters and the importance of doing so. Along the way they also discuss the summer Olympics, underdogs, monologue face-offs, Quincy Wilson, Boomers, the Soviet judge, biopsy subjectivity, the secret to college admissions reliability, skipping
S6E02 Judging Inter-Rater Reliability Read More »
In this week’s episode, Greg and Patrick talk about the challenges of combining confirmatory factor analysis and multilevel data, and the underappreciated but absolutely critical role that theory plays in choosing the proper model for your constructs. Along the way they also discuss learning in a second language, torn meniscuseseses, concert C trumpets, nosy neighbors,
S5E21 Multilevel Factor Analysis: But What Do The Factors Mean?! Read More »
In this week’s episode Greg and Patrick discuss the assessment of global vs. local model fit and they argue that although global measures of fit can be useful, carefully assessing local fit may be of much greater importance in practice. Along the way the also discuss cheap beach house rentals, misplaced sand dunes, Mrs. Lincoln,
S5E20 Local fit…Because Global Fit Measures Suck! Read More »
In this week’s episode Patrick and Greg provide an introduction to the Item Response Theory model: what it is, how it relates to traditional factor analysis, and how this modem approach improves upon some of the limitations of classical test theory. Along the way they also mention weinerness, memorizing Latin for punishment, eggszampke, in ether
S5E19 Item Response Theory, Q.E.D. Read More »
In this week’s episode Greg and Patrick take a walk down memory lane to rediscover classical test theory, although they revisit this through the lens of modern latent variable models. They describe how these classical methods are actually highly restricted latent measurement models and they explore how these restrictions can be relaxed and even tested.
S5E15 Classical Test Theory (in bed) Read More »
In today’s episode, Greg and Patrick dig into Confirmatory Composite Analysis, a very clever way to get formative factors and their causal indicators into the traditional structural equation modeling framework, along with any other latent factors and their effect indicators that might already be in the model. Along the way they also discuss full-contact Wordle,
S5E08 Confirmatory Composite Analysis: Enter the Hexagon Read More »
