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| a prediction or assumption about behavior that is tested through scientific research |
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| build, make, create, come up with |
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| a repeated research study, usually with different participants and in different situations, to confirm the results of the original study |
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| a research technique for acquiring data about the attitudes or behaviors of a group of people, usually by asking them questions of a representative, random sample |
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| the total group to be studied or described and from whom samples may be drawn |
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| a representative segment of a target population |
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| a survey population, selected by chance, which fairly represents the general population |
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| a sample drawn in such a way that known subgroups within a population are represented in proportion to their numbers in the general population |
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| influence in an unfair way, favor one more than another |
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| the concept that people who volunteer to participate in research studies often differ from those who do not volunteer |
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| an in-depth study of a single person or group to reveal some universal principle |
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| a type of research in which the same people are studied over a long period of time |
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| a method of research that looks at different age groups at the same time in order to understand changes that occur during the life span |
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| the study of behavior in naturally occurring situations without manipulation or control on the part of the observer |
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| the study of behavior in a controlled situation |
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| the relationship between variables |
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| a relationship between variables in which one variable increases as the other variable also increase |
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| an unpleasant stimulus between two variables in which one variable increases as the other variable decreases |
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| a controlled scientific procedure to determine whether certain variables manipulated by the researcher have an effect on other variables |
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| factors that are measured or controlled in a scientific study |
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| the factor that is manipulated by the researcher to determine its effect on another variable |
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| in an experiment, the factor that is being measured and that may change in response to manipulations of the independent variable |
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| in a study, the participants who receive the treatment/action |
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| in an experiment, the group that does not receive the treatment (compare data to this) |
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| an experiment that uses both a control group and an experimental group to determine whether the independent variable influences behavior and, if so, how it does. |
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| an inert/motionless substance used in controlled experiments to test the effectiveness of another substance |
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| a study in which the participants are unaware of whether they are in the control group or the experimental group |
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| an experiment in which neither the participant nor the researcher knows whether the participant has received the treatment/action or the placebo |
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| a measure of the distance of every score to the mean |
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| rules and standards for proper and responsible behavior |
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| an agreement by an individual to participate in research after receiving information about the purpose of the study and the nature of the treatment |
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