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25 Cards in this Set
- Front
- Back
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Survey |
A research technique for acquiring data about the attitudes or behaviors of a group of people usually by asking questions of a representative, random sample. |
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Target population |
The total group to be studied or described and from whom samples may be drawn. |
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Sample |
A representative segment of a target population. |
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Stratified sample |
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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Random sample |
A survey population, selected by chance, which fairly represents the general population. |
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Bias |
A predisposition to a certain point of view despite the facts. |
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Volunteer bias |
The concept that people who volunteer to participate in research studies often differ from those who do not. |
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Case study |
An in-depth study of a single person or group to reveal some universal principle. |
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Longitudinal method |
A type of research in which the same people are studied. |
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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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Naturalist observation |
The study of behavior in naturally occurring situations without manipulation or control on the part of the observer. |
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Laboratory observation |
The study of behavior in a controlled situation. |
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Correlation |
The relationship between variables. |
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Positive correlation |
A relationship between variables in which one variable increases as the other also increases. |
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Negative correlation |
As one goes up the other goes down. |
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Variables |
Factors that can vary or change |
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Independent variable |
What you change |
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Dependent variable |
What changes based off of what you change |
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Experimental group |
Receives treatment |
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Control group |
Does not receive treatment. |
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Placebo |
Substance or treatment that has no effect apart from a person's belief in its effect. |
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Single-blind study |
Participants don't know whether they are in the experimental group or the control group. |
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Double-blind study |
Participants and researches are unaware of which group is experimental and which is the control. |
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Standard deviation |
Measure of distance of every score to the mean. |
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Ethics |
Standards for proper and responsible behavior. |
