What distinguishes quantitative research from qualitative research?

Quantitative research is distinguished by its focus on data that can be quantified, allowing researchers to use statistical techniques to analyze numerical data. This type of research seeks to measure variables and identify relationships among them, leading to conclusions that can be generalized. The strength of quantitative research lies in its ability to provide measurable and objective data through structured methods, such as surveys and experiments, which often yield results that can be statistically validated.

By concentrating on quantifiable aspects, researchers can conduct analyses that uncover patterns, trends, and causal relationships. This systematic approach enables replication and enhances the reliability of the findings.

The other options do not accurately characterize quantitative research. For instance, it is not distinctively tied to interviews, which are more commonly associated with qualitative research. Quantitative research also typically involves closed-ended questions rather than open-ended ones, which allow for more subjective responses typically associated with qualitative methods. Moreover, while existing data can be utilized in quantitative research, it is not limited to that; new data can also be gathered through various methodologies.