This document provides an overview of quantitative and qualitative research methodologies. It discusses the aims of research as describing, predicting, explaining, and interpreting phenomena. Quantitative research aims to test hypotheses and establish causal relationships using measurements and statistical analysis, while qualitative research seeks to understand phenomena through methods like interviews and observation. The document also outlines the research process, provides examples of quantitative and qualitative methods, and discusses data analysis and choosing appropriate methodologies. It addresses implications and challenges of research for developing countries and communities.