Dr. Mottle's experiment includes randomizing subjects to a group that gets a needle -stick or to a group that gets a "fake" needle-stick
Differentiate experimental group from control group.
What is the role of the placebo in experimental design? Give another example of use of a placebo.
What will be an ideal response?
Experimental group receives the active intervention, the control group receives no intervention or an inactive intervention such as a placebo. A placebo is an inactive substitute for a true intervention. It is sometimes called a sugar pill, but can be something other than a pill. For example a researcher could use a "fake" camera for a
placebo and a real camera in the experimental group.
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A legal rule established by a judicial decision that guides subsequent decisions in court rulings is known as which of the following?
a. per curiam b. case precedent c. coram nobis d. amicus curiae
Historically, Supreme Court justices used to be exclusively __________ upper- or uppermiddle-class males
A) powerful B) WASP C) New England D) Christian
Which of the following statements about gerrymandering today is accurate?
a. Democrats have a significant advantage because their irregular voters can easily be mobilized so that makes Republican House members more vulnerable. b. The adoption of nonpartisan commissions has wiped out any partisan advantage so every congressional district is competitive. c. Even with gerrymandering, House election results generally do not follow partisan leanings of the district because of ticket splitting. d. Republicans have an advantage because their regular voters are distributed more efficiently across House districts so fewer votes are wasted in highly skewed districts.
Giving the dependent measure before any manipulation of the independent variable in a nonequivalent control-group design allows the researcher to
A) assess the similarity of the experimental and control groups. B) determine what the range of scores will be after the manipulation. C) drop any participants that differ significantly from the norm. D) All of the above