In the Research Example That Used Starbucks Coffee, Participants Did

Multiple Choice

In the research example that used Starbucks coffee, participants did not know whether they were drinking regular or caffeine. They were later tested for memory by experimenters who did not know which group the participants were in. Which of the following is true about this study?

A) it failed to control for experimenter expectations
B) it illustrates the good subject effect
C) the participants were senior citizens, so it showed an especially high level of evaluation apprehension
D) the design was an example of a double blind procedure