Timothy C. Guetterman is a methodologist focused on research design and mixed methods research. His research interests include advancing rigorous methods of quantitative, qualitative, and mixed methods research, particularly strategies for intersecting and integrating qualitative and quantitative research. Tim is the PI of NIH-funded research that uses quantitative, qualitative, and mixed methods research to investigate the use of virtual human technology in health, education, and assessment. He has been applying natural language processing techniques to the analysis of mixed methods datasets. He also conducts research on teaching, learning, and developing research methods capacity as Co-PI of a William T. Grant Foundation qualitative and mixed methods research capacity building grant and in his role as evaluator and Co-I for the NIH-funded Mixed Methods Research Training Program for the Health Sciences. Tim has extensive professional experience conducting program evaluation with a focus on educational and healthcare programs.