A researcher is asked to distribute medication to the participants of a study. Although each cup of medication is labeled with the participant's number, neither the researcher nor the participants know who is getting the placebo and who is getting the actual treatment. What type of experimental method does this example illustrate?
A. deception procedure
B. researcher blindness procedure
C. placebo effect procedure
D. double-blind procedure
B. researcher blindness procedure
Political Science
You might also like to view...
Most information about political scandals comes from
A) investigative journalism. B) official government statements and reports. C) yellow journalism. D) muckraking. E) insider leaks to the press.
Political Science
Who among the following is a modern President?
a. James Buchanan b. Theodore Roosevelt c. Bill Clinton d. Calvin Coolidge e. Warren Harding
Political Science