To evaluate the success of a health program, which method can be employed to gather quantitative data?

Gathering quantitative data is essential for assessing the success of a health program, as it provides measurable information that can be analyzed statistically. The method of conducting statistical analysis of pre- and post-intervention surveys is particularly effective for this purpose. This approach allows for the collection of numerical data before and after the implementation of a health program, enabling health educators to quantify changes in knowledge, attitudes, behaviors, or health outcomes resulting from the program.

By utilizing pre- and post-intervention surveys, evaluators can assess any significant differences in the data, applying statistical tests to determine if observed changes are likely due to the intervention rather than random chance. This method provides clear evidence of program effectiveness, allowing stakeholders to make informed decisions regarding the continuity or modification of the program based on solid empirical data.

In contrast, surveys with open-ended questions primarily yield qualitative data, making it challenging to measure success in numerical terms. Comparative analysis, while informative, does not specifically quantify changes from an intervention. Group discussions provide rich qualitative insights but lack the structured quantitative measures needed for statistical evaluation. Therefore, the method involving statistical analysis of pre- and post-intervention surveys is the most appropriate for gathering quantitative data to evaluate the success of a health program.