Professor Aaron finds that when she smiles and makes eye contact with Jeanne, she becomes more responsive to her questions. She tries the same behavior on David, Chris, and Elena and finds that it also influences their responses to her questions. What type of single-case design did Professor Aaron employ?

C. Across subjects multiple-baseline design

Explanation:

According to a different source, these are the options that come with this question:

A. Across situations ABA design

B. Across behaviors multiple-baseline design

C. Across subjects multiple-baseline design

D. Across subjects ABA design

A multiple baseline design is a type of research used in various fields of science. One characteristic of this type of research is that the start of treatment varies across individuals. This helps the attribution aspect of the experiment. This type of experiment also gathers information from many subjects, which helps create more precise generalizations to the population.