In an experiment, one group of participants is exposed to treatment, another is exposed to an application identified to them as treatment, and another is not exposed to any treatment. In such a procedure, the participants who are not exposed to any form of treatment, either genuine or false, are classified as the ________ group.
A) rival
B) placebo
C) experimental
D) control
D
You might also like to view...
Americans may exhibit a social desirability bias?that is to say exactly how they feel and get it all out in the open
Indicate whether this statement is true or false.
Which of the following is associated with the concentration of new immigrants in a few metropolitan regions in the United States?
a. Uneven distribution adds to the costs of education and healthcare in cities where immigrants are concentrated. b. Immigrants face intense competition and at times, direct hostility from non-immigrants and immigrants who have lived there for longer periods. c. Children and adolescents form defensive gangs to shelter themselves from prejudice. d. All of the above. e. None of the above.
Ethnicity for the Polish is described as all but the following:
a) what is taught b) what is refused c) what is inherited d) what is reclaimed
Which of these statements regarding the practice of embalming the dead body is true?
a. After embalming the skin retains its normal color. b. A body must be embalmed if the person died of cancer. c. A body must be embalmed if it is shipped by plane to another state. d. The body will not decompose if it is embalmed.