Which aspect of research methodologies includes the gathering of numerical data?

The gathering of numerical data is a hallmark of quantitative research methodologies. This approach focuses on quantifying variables and utilizing statistical analysis to draw conclusions. Quantitative research typically involves the use of structured instruments like surveys or experiments that yield numerical results, allowing researchers to test hypotheses and make predictions.

In contrast, qualitative research methodologies prioritize descriptive data that provides insight into concepts, thoughts, or experiences, often through interviews, focus groups, or open-ended questions. While both methodologies can inform research, it is specifically quantitative methods that concentrate on numerical data collection and analysis. This distinction is what makes quantitative research pivotal for studies that seek to measure and analyze trends, comparisons, or correlations quantitatively.

Case study methodologies, while valuable in exploring complex issues in depth, do not primarily emphasize numerical data unless they incorporate quantitative elements. Therefore, the selection of quantitative research methodologies as the aspect focused on gathering numerical data is accurate and aligns with established research practices.