Summary data from an unpublished study by Neil Thomason and colleagues, who were interested in ways to enhance students' critical thinking. They were investigating argument mapping, which is a promising way to use diagrams to represent the structure of arguments. Students in their study completed an established test of critical thinking (the Pretest), then a critical thinking course based on argument mapping, then a second version of the test (the Posttest).
data_thomason_1
data_thomason_1
A data frame with 12 rows and 3 columns:
factor
numeric
numeric