Heidi is conducting research for a large mental health center. She is responsible for assigning participants to one of two conditions--either the condition that receives the medicine being tested or a placebo pill. The actual nurses and doctors administering the medication or placebos do not know which they are giving, nor do the patients know which they are receiving. Only Heidi tracks this information. Heidi's study uses a(n) ____ design.

Question

Quizplus · Accepted Answer

In a double-blind design, neither the participants nor the administrators know who is receiving the treatment or placebo, which is the case in Heidi's study.

Heidi Is Conducting Research for a Large Mental Health Center