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15 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Alpha (level of significance)
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Refers to the the probabilty of rejecting the null hypo when it is true.
Value set by experimenter prior to collecting data. set at .01 or .05 |
Prob of making a Typoe I error
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Ancova (anaysis of covariance)
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version fo the Anova used to increase the efficiency of the analysis by statistically removing variability in the DV, due to extraneous variable.
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Autocorrelation
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occurs when performance of post-test correlates w/ performance of pretest.
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Between-Groups design
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Studies in which the effects of the different levels of one or more IV are compared by administering each level or combination of levels to a different group of participants.
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Central limit theorem
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Devrived probability theor. sampling size of mean will approach a normal shape as sample size increases.
Mean equals |
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Autocorrelation
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Inflates value fo t or F threfore resulting in increase prob of Type I error
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Central limit theorem
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mean equl to popluation mean
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Central limit theorem
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standard deviation equal to pop SD divided by sq root of the sample size
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Chi-square tests
single sample |
Inferential stat test on a nominal scale. one variable
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Chi-square tests
multiple sample |
Inferential stat test on a nominal scale. two or more variables
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Cluster sample
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units or groups of individuals from population
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Correlation Coefficient
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numerical index of degree of association of 2 or > V's.
magnitiude = strength of relat -+ indicates direction |
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Pearson r
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both V's represent a continuous scale
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point biserial
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one V is a true dichotomy and the other is continuous
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biserial
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one V is an artifical dichotomy and other is continuous.
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