HCIprepost dataset consists of the pretest and
  posttest score of 16 students to Homeostasis Concept Inventory (HCI).
  Between the pre-test and post-test, the students received
  instruction on homeostasis within a physiology course.
data(HCIprepost)HCIprepost is a data.frame consisting of 16
  observations on the 2 variables.
Anonymized respondent ID.
Pretest score.
Posttest score.
McFarland, J. L., Price, R. M., Wenderoth, M. P., Martinkova, P., Cliff, W., Michael, J., ... & Wright, A. (2017). Development and validation of the homeostasis concept inventory. CBE-Life Sciences Education, 16(2), ar35. 10.1187/cbe.16-10-0305
HCIdata for HCI full dataset
HCI for HCI dichotomous dataset
HCItest for HCI multiple-choice dataset
HCIkey for key of correct answers for HCI
HCIgrads  for HCI dataset of graduate students
HCItestretest for HCI test-retest dataset