A study that includes detailed descriptions of individual cases primarily falls into which type of research?

The correct answer is that a study including detailed descriptions of individual cases falls primarily into qualitative research. Qualitative research is focused on understanding and interpreting human behavior, experiences, or social phenomena through in-depth data collection methods like interviews, case studies, and observations. It emphasizes the richness of data gathered through techniques that provide deeper insights into specific instances or individual experiences, which is achieved through narrative descriptions rather than numerical metrics.

In qualitative studies, researchers aim to capture the complexity and context surrounding a case, allowing for the exploration of patterns, themes, and meanings that emerge from the data. This contrasts with quantitative research, which relies on statistical analysis of numerical data and often aims to test hypotheses or examine relationships between variables, emphasizing breadth over depth.