In a factorial experiment, if the experimenter is concerned about demand characteristic, s/he can _____
a. use a within subjects design
b. increase the size of the sample
c. use a simple experiment instead of a factorial experiment
d. disguise the real purpose of the experiment
D
Demand characteristics occur when participants know what the experiment is about. One way to reduce demand characteristics is to disguise the purpose of the experiment; for example, by using a cover story.
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A group is defined as
a. a set of individuals who interact over time and have shared fate, goals, or identity. b. a set of rigid boundaries and norms. c. people engaged in a common activity with or without direct interaction. d. a social category.
Rice, Thapar, and colleagues (2007, 2009) attempted to uncouple the effects of genetics and the effects of smoking while pregnant on birth weight and elevated antisocial behavior. They found that
a. birth weight was unrelated to smoking. b. antisocial behaviors elevated the risk for smoking. c. antisocial behavior could be linked to genes but not to smoking. d. genetic factors appear to cause smoking.
The term zygote refers to:
a. the genetic material from the father b. the genetic material from the mother c. the genetic material from both mother and father before it pairs up d. the fertilized egg in its initial stage
In developing countries, _____ of those who finish primary school are likely to go on to secondary school
A) essentially all B) very few C) about half D) only one in three