Introduction to Path Analysis

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What path analysis can and can’t accomplish… Cans -- for a given structural model you can… • evaluate the contribution of any path or combination of paths to the overall fit of that structural model • help identify sources of suppressor effects (indirect paths) Can’ts • non-recursive (bi-directional) models • help decide among alternative structural models • provide tests of causality (unless experimental data) So… You have to convince yourself and your audience of the “reasonableness” of your structural model (the placing of the predictors), and then you can test hypotheses about which arrows amongst the variables have unique contributions.
Alternative ways to “think about” path analysis… • to capture the “causal paths” among the predictors and to the criterion • to capture the “temporal paths” among the predictors and to the criterion • to distinguish “direct” and “indirect” paths of relationship • to investigate “mediation effects”
Page 1 and 2: Introduction to Path Analysis • W
Page 3: Where do the path coefficients come
Page 7 and 8: …to distinguish “direct” and
Page 9 and 10: … to investigate “mediation eff
Page 11 and 12: Some caveats about the “when” o
Page 13 and 14: Path Analysis - allows us to look a
Page 15 and 16: The things to remember are that: 1.
Page 17 and 18: About non-recursive (bi-directional
Page 19 and 20: Mediation Analyses The basic mediat
Page 21 and 22: Testing Causal Models Theory Trimmi
Page 23 and 24: Testing Over-identified models Test

Introduction to Path Analysis

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