The Misuse of R² in Regression Analysis
What R² Actually Measures Why High R² Is Often Misleading Overfitting & Inflated R² Model Misspecification & Nonlinearity Sampling Issues & Range Effects Better Metrics & Validation Techniques Adjusted R²: A Penalized Alternative Cross-Validation & Leave-One-Out R² Residual Diagnostics & Model Assumptions Practical Tips for Researchers R² is not magic. It’s a limited metric, useful … Read more