In field experiments, researchers __________.
A. selectively assign participants to treatment conditions in natural settings
B. cannot used random assignment or manipulate treatment conditions
C. randomly assign participants to treatment conditions in natural settings
D. have stronger control over the treatment than in the laboratory
Answer:C
In field experiments, researchers __________.
A. selectively assign participants to treatment conditions in natural settings B. cannot used random assignment or manipulate treatment conditions C. randomly assign participants to treatment conditions in natural settings D. have stronger control over the treatment than in the laboratory