Which research approach typically involves experiments and uses numeric data?

Quantitative research is characterized by its focus on collecting and analyzing numeric data, which often involves the use of experiments to test hypotheses. This approach is grounded in the principles of statistical analysis and aims to quantify variables to establish patterns, relationships, and causal connections. By using controlled experiments, researchers can manipulate independent variables and measure their effects on dependent variables, allowing for conclusions that can be generalized to a broader population.

This method contrasts with qualitative research, which tends to emphasize subjective experiences and explores phenomena through non-numeric data such as interviews and observations. While mixed methods research combines elements of both quantitative and qualitative approaches, it does not solely focus on numeric data, and ethnographic research specifically involves in-depth understanding of cultural contexts rather than experimental manipulation. Thus, the focus on numeric data and experiments firmly aligns quantitative research as the correct choice.