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27 Cards in this Set
- Front
- Back
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hypothesis
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an educated guess
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replicate
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repeated
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survey
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series of questions about a particular subject
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target population
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the whole group you want to study or describe
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sample
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a representative segment of a target population
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random sample
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a survey population, selected by chance, which fairly represents the general population
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stratified sample
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a sample drawn in such a way that known subgroups within a population are represented in a proportion to their numbers in the general population
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volunteer bias
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the concept that people who volunteer to participate in research studies often differ from those who don't volunteer
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case study
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an in depth investigation of an individual or a small group.
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longitudinal method
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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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cross-sectional method |
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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naturalistic observation
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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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laboratory-observation
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observing behavior in a laboratory rather than in the field
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correlation
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a measure of how closely one thing is related to another
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positive correlation
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a relationship between variables in which one variable increases as the other increases as well
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negative correlation
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as one goes up the other goes down
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experiment
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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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variable
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factors that can vary or change
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independent variable
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factor that researches manipulate so they can determine its effect
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dependent variable
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depends on something.
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experimental group
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receive the treatment
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control group
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do not get the treatment
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controlled experiment
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control and experimental groups
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placebo
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a substance or treatment that has no effect besides the belief in it.
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single blind study
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participants don't know if they are receiving the treatment or not.
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double blind study
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participants and experimenters are burn unaware of who has obtained the treatment.
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ethics
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rules and standards fur proper and responsible behavior
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