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7 Cards in this Set
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Independent-measures design
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A research design that uses a separate sample for each treatment condition or each population being compared
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Between-subjects design
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An alternative term for an independent-measures design
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Repeated-measures design
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A research design that uses the same group of subjects in all of the treatment conditions being compared
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Within-subjects design
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An alternative term for a repeated-measures design
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Pooled variance
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A single measure of sample variance that is obtained by averaging two sample variances. It is a weighted mean of the two variances
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homogeneity of variance
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An assumption that the two populations from which the samples were obtained have equal variances
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Hartley's F-max test
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test used to determine whether or not the homogeneity assumption is satisfied. this assumption must be satisfied to justify pooling two sample variances and using this pooled variance in the calculation of the t statistic
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