Figure 4. This graph displays the difference in intrinsic motivation found from the motivation test for treatment and control group. Some students felt now difference between the classes (n=13)

From

Effects of Animals in Post-Secondary Science Classrooms on Academic Achievement, Academic Retention, and Intrinsic Motivation

Casey Krull, Josie Suchomel, Michael Bechtel

American Journal of Educational Research. 2015, 3(9), 1193-1207 doi:10.12691/education-3-9-21