Question

Nadine conducted a pretest-posttest control group design. The comparison group received a traditional lecture of course content while the treatment group received the lecture and instructor-provided summary notes. She found, however, no differences between conditions, due in part to students sharing the instructor summaries across conditions. This is an example of

Answer 1

Treatment diffusion

Step-by-step explanation:

This is when Some participants share information regarding their treatment to other test subjects who then modify their treatment plan.