Answer:
Kept ignorant of the research hypothesis
Step-by-step explanation:
A research hypothesis is a real, simple, and testable proposition or predictive assertion about the potential outcome of a scientific research study based on a specific property. A hypothesis is a tentative statement about the relationship between two or more variables.
Dr. Shaw conducts research on marital behaviors that predict divorce, he trains his students to observe and code videotapes of couples interacting, but the students are unaware of the anticipated outcomes of the study. There are kept ignorant of the research hypothesis.