The purpose of Isabel’s study is to compare differences in critical thinking skills between graduating seniors from a high school at which the curriculum was problem-based and a high school with lecture-based curriculum, and afterward to observe classroom experiences at both high schools to explain any differences in critical thinking skills. Which of the following best represents the type of study design? a.
Phenomenology
b.
An explanatory quantitative-qualitative sequential mixed methods
c.
An exploratory qualitative-quantitative sequential mixed methods
d.
A convergent mixed methods