Research and Report Consultancy

Why Data Aggregation Masks Inequality and Vulnerability

Why-data-aggregation-masks-inequality-and-vulnerability

Aggregated data often simplifies complex realities into a single number, such as a national poverty rate, an average test score, or a district-level health indicator. While these summaries support fast reporting, they also conceal inequality, mute vulnerability, and distort policy decisions. Policymakers, donors, and researchers frequently rely on aggregated indicators without examining underlying distributions. As … Read more

The Misuse of R² in Regression Analysis

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