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5 Cards in this Set
- Front
- Back
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What is the mean?
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an average compiled by summing the values of several observations and dividing by the number of observations.
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What is the mode?
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still another AVERAGE, representing the most frequently observed value or attribute. If a sample contains 1,000 people aged 65 or over, 275 people aged 45-66, and 33 persons aged 43 or younger, age 65+ is the modal category.
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What is a t-test?
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used when we wish to determine whether two groups representing nominal-level attitudes of an independent variable differ on some dependent variable measured at the interval or ratio level of measurement
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What is nominal measure?
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a level of measurement describing a variable the different attributes of which are ONLY differenct, as distinguished from ORDINAL, INTERVAL or RATIO Measures. Sex is an example of a nominal measure.
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What is a dependent variable?
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a variable assumed to depend on or be caused by another (called INDEPENDENT variable). If you find that income is partly a function of one's level of communication anxiety, INCOME is being treated as a DEPENDENT VARIABLE.
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