"A researcher is

conducting a study to investigate the relationship between students'

self-efficacy in mathematics and their actual math performance in a middle

school. The researcher plans to collect quantitative data on math test scores

and self-efficacy questionnaires from a large sample of students. Additionally,

the researcher intends to conduct in-depth interviews with a subset of students

to gain deeper insights into the factors influencing their self-efficacy

beliefs and math performance."

Which mixed methods research design is the

researcher most likely employing?