AP Psychology ALL Terms
Psychology - answerthe science of behavior and mental processes
nature-nurture issue - answerthe long-standing controversy over the relative contributions that
genes and experience make to the development of psychological traits and behaviors
natural selection - answerth...
correlation coefficient - answer✔a statistical measure of the extent to which two factors vary
together, and thus of how well either factor predicts the other
scatterplot - answer✔a graphed cluster of dots, each of which represents the values of two
variables. The slope of the points suggests the direction of the relationship between the two
variables. The amount of scatter suggests the strength of correlation (little scatter indicates high
correlation).
illusory correlation - answer✔the perception of a relationship where none exists
experiment - answer✔a research method in which an investigator manipulates one or more
factors (independent variables) to observe the effect on some behavior or mental process (the
dependent variable). By random assignment of participants the experimenter controls other
relevant factors)
placebo - answer✔an inert substance or condition that may be administered instead of a
presumed active agent, such as a drug, to see if it triggers the effects believed to characterize the
active agent
double-blind procedure - answer✔an experimental procedure in which both the research
participants and the research staff are ignorant (blind) about whether the research participants
have received the treatment or a placebo. Commonly used in drug-evaluation studies.
placebo effect - answer✔any effect on behavior caused by a placebo
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