One of Camille's 10th grade algebra students, Angelique, is constantly late to class. To reduce Angelique's tardiness, she decides to give Angelique detention every time she is late for class. To justify the need for such an intervention, Camille must first demonstrate that Angelique is consistently tardy by observing the number of times she is tardy for two consecutive weeks. Camille then uses her intervention for the next six weeks and measures how often Angelique is tardy. After seeing a decrease in tardiness, Camille stops giving Angelique detentions for two weeks, but then resumes the punishment once it appears that Angelique is late for class again. What type of design is Camille using?

Group of answer choices

factorial design

AB design

one-group pretest posttest design

ABAB design