Salma Is a Graduate Student Who Is Observing Children Playing

Multiple Choice

Salma is a graduate student who is observing children playing together after watching a film. She knows that some children saw a film that contained graphic scenes of violence and some children saw a non-violent film, but she doesn't know which film each child she is observing watched. In this case, Salma is recording data for

A) a double-blind research study.
B) a study with two independent variables.
C) an unethical research study.
D) a correlational study with confounded variables.