This document discusses data analysis and report writing. It focuses on the initial phases of data analysis: data preparation and description. This includes editing data to ensure accuracy, coding responses numerically for analysis, and creating descriptive statistics. The document outlines best practices for editing data at both the field and central levels. Coding involves assigning numeric codes to categorical responses so the data can be analyzed efficiently. Proper interpretation is also discussed as key to drawing meaningful inferences from the analysis and establishing explanatory concepts and continuity in research. Techniques like considering all relevant factors and consulting experts can help ensure accurate interpretation.