Which approach combines both qualitative and quantitative data collection in a single study?

The approach that combines both qualitative and quantitative data collection in a single study is known as mixed methods. This methodology is highly valuable because it allows researchers to leverage the strengths of both qualitative and quantitative data.

Qualitative data provides in-depth understanding of participants' perspectives, experiences, and motivations, which can reveal the context behind quantitative findings. On the other hand, quantitative data offers statistical analysis that can identify patterns, relationships, and generalizable results. By integrating these two types of data, mixed methods research enables a more comprehensive analysis of the research question, facilitating richer insights and a more nuanced interpretation of results.

Using this approach can enhance the validity and reliability of research findings, as it allows for triangulation, where different data sources can corroborate each other. This methodology is particularly effective when studying complex phenomena where neither qualitative nor quantitative methods alone would provide a complete picture.