Nancy is studying after-school programs that are housed in the district's school buildings. She interviews staff, students, and parents, observes programs, and reviews school board documents that illustrate how the after-school programs developed. She then administered a survey to enrolled children that rated satisfaction with their program in order to generalize her findings. Which type of research design does Nancy's study illustrate?
◦ Explanatory sequential
◦ Qualitative
◦ Exploratory sequential
◦ Quantitative