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| "the tendency to believe, after learning an outcome, that one would have forseen it" |
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| tendency to overestimate the accuracy of one's beliefs and judgements |
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| sample that fairly represents a pop. b/c each member had an equal chance of inclusion |
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| assigning participants to experimental and control conditions by chance |
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| the perception of a relationship where none exists |
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| tendency to overestimate the extent to which others share our beliefs and behaviors |
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| treatment of a group in an experiment to compare w/ an experimental group |
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| statement of the procedures used to define research variables |
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| observation technique where one person is studied in depth in hope of revealing universal principles |
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| observing and recording behavior in naturally occuring situations w/o trying to manipulate and control the situation |
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| "statistical measure of the extent to which two factors vary together, and thus of how well either factor predics the other" |
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Definition
| any effect on behavior caused by a placebo |
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| "technique for ascertaining the self-reported attitudes or behaviors of people, usually by questioning a rep. Sample" |
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Definition
| experimental procedure in which both the research participants and the research staff are ignorant about whether the research participants have received treatment or a placebo |
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Definition
| experimental procedure where only the research participants are unaware of whether they are receiving treatment or a placebo |
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| a computed measure of how much scores vary around the mean score |
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Definition
| arithmetic average of a distribution |
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Definition
| the middle score in a distribution |
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Definition
| the most frequently occuring score in a distribution |
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Definition
| a graphed cluster of dots that represent the values of 2 variables; slope of the points suggests the strength and direction of the correlation |
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Definition
| symmetrical bell-shaped cure that descrives the distribution of many physical and psychological attributes |
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Definition
| the difference between the highest and lowest scores in a distribution |
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