The degree of relationship between two or more variables is __________.
A. a correlation
B. validity
C. reliability
D. a hypothesis
Answer: A
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The sleeper effect refers to the finding that, over time, ____
a. people tend to become more and more stubborn about their opinions (and less easily persuaded to adopt alternative points of view) b. people tend to become more open to, or accepting of, persuasive arguments that they hear repeatedly c. people tend to become inoculated against (better able to counter-argue) persuasive arguments that they hear repeatedly d. people tend to forget where (or from whom) they heard a persuasive argument or piece of information
Postpartum psychosis is the most severe form of postpartum depression
Indicate whether this statement is true or false.
Lashley found that a deep cut in a rat's cerebral cortex completely eliminated the effects of learning under what circumstances, if any?
A. if the cut was made after the learning B. if the learned task was simple C. if the learned task was complex D. under none of the circumstances he studied
In research, the target group you want to find out about, such as the "average American
teenager," comprises the research ______. a. sample c. cluster b. population d. set