a systematic investigation that focuses on collecting and analyzing numerical data to identify patterns, measure variables, and test hypotheses. It emphasizes objectivity, reliability, and statistical analysis to draw conclusions about relationships, differences, or effects within a population. This type of research is commonly used to evaluate interventions, measure outcomes, and generate evidence that can be generalized to larger groups.
Example
A public health team conducts quantitative research to evaluate a smoking-cessation program. They survey 500 participants, record the number of cigarettes smoked per day before and after the program, and use statistical tests to determine whether there is a significant reduction in smoking rates.