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20 Cards in this Set

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  • Back
hypothesis
a testable prediction about the conditions under which an event will occur
theory
an organized set of principles used to explain observed phenomena
basic research
research whose goal is to increase the understanding of human behavior, often by testing hypotheses based on a theory
applied research
research whose goals are to enlarge the understanding of naturally occuring events and to find solutions to practical problems
operational definition
the specific procedures for manipulating or measuring a conceptual variable
construct validity
the extent to which the measures used in a study measure the variables they were designed to measure and the manipulations in an experiment manipulate the variables they were designed to manipulate
interrater reliability
the degree to which different observers agree on their observations
random sampling
a method of selecting participants for a study so that every one in a population has an equal chance of being in the study
correlational research
research designed to measure the association between variables that aren't manipulated by the researcher
correlation coefficient
a statistical measure of the strength and direction of the association between two variables
experiment
a form of reserach that can demonstrate casual relationships because the experimenter has control over the events that occure and participants are randomly assigned to conditions
random assignment
a method of assigning participants to the various conditions of an experiment so that each participant in the experiment has an equal chance of being in any of the conditions
main effect
a statistical term indicates the overall effect that an independent variable has on the dependent variable, ignoring all other independent variables
interaction
a statistical term indicating the change in the effect of each independent variable as a fuction of other dependent variables
experimentor expectancy effects
the effects produced when an experimenter's expectations about the results of an experiment affect their behavior toward a participant and thereby influence the participants responses
external validity
the degree to which there can be reasonable confidence that the results of a study would be obtained for other people and in other situations
mundane realism
the degree to which the experimental situation resembles placed and events in the real world
experimental realism
the degree to which experimental procedures are involving to participants and lead them to behave naturally and spontaneously
deception
providing false information to participants
confederate
accomplice of an experimenter who, in dealing with the real participants in an experiment, acts as if s/he is also a participants