Term
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Definition
Inferential Statistics
Hypothesis Testing |
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Term
| Inferential Statistics (2) |
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Definition
Systematic Variance
Error Variance |
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Term
| Systematic variance (aka between-groups variance) |
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Definition
| part of the total variance that reflects differences among the experimental groups |
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Term
| Error Variance (aka within-groups variance) |
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Definition
| the result of unsystematic differences among participants; they differ at the time they enter experiment, ability, personality, mood, etc. |
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Term
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Definition
Treatment Variance,
Confound Variance |
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Term
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Definition
| the portion of the variance in participants' scores that is due to the independent variable (aka primary variance) |
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Term
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Definition
| when a variable other than the independent variable differs between the groups (aka secondary variance) |
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Term
| Sources of error variance (5) |
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Definition
individual differences
transient states,
environmental factors,
differential treatment,
measurement error |
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Term
| total variance = treatment variance + Confound variance + _________ |
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Definition
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Term
| Total variance = systematic variance + ________ |
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Definition
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Term
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Definition
| maximize treatment variance, eliminate confound variance, and minimize error variance |
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Term
| Two types of hypothesis testing |
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Definition
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Term
| research hypothesis testing |
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Definition
| what you think will be the outcome of the research; ex. Expressing gratitude will improve well-being |
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Term
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Definition
| mathematical statements concerning population values |
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Term
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Definition
| Fail to reject null hypothesis |
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