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, spring break, STDs, Southwest Airlines, radial arm saws, courage, buying paint at Home Depot, Agatha and Karl's corpses, and 737s vs. DC-3s. 

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