deffinitions for chapter two
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| psychology | a study of thinking, feeling, and behavior
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| hypothesis | tentative statement about the relationship between two variables
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| variable | things controlled or observed in a study
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| experiment | when one o more variables is manipulated by the researcher to see if it affects another variable
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| independent variable | the variable that the researcher controls
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| dependent variable | the variable that is measured at the end, outcome variable
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| experimental group | gets the iv
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| control group | other group used as a control
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| surveys | asking people questions. to be valid, the sample must be a representation of the population. problems with this research designs include the fallibility of memory and social desirability bias.
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| social desirability bias | people say what would put them in positive light
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| case study | in depth study of one or a few subjects
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| observation | don't do anything, just watch
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| obtrusive observation | the observer is noticeable
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| unobtrusive observation | the observer is not noticeable, which creates a problem of ethics
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| correlation | shows a relationship between two things, can be positive or negative. Does NOT show cause and effect
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| correlational coefficient | numerical index of strength of relationship (r.)
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| cross sectional design | sampling subjects of different ages for one time
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| longitudinal study | study the same subjects over time
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| statistically significant | the probability that your findings are due to chance is 5% or less
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