Term
| Statistics vs. Parameters |
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Definition
STATISTICS: mean, median, mode, SD for a sample.
PARAMETERS: estimates of statistics for the population.
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Term
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Definition
| All the scores on a particular variable |
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Term
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Definition
Cut off 5% of sample means.
CRITICAL VALUE:
2.5% (negative c.) - 2-5% (positive c.) |
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Term
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Definition
Findings are unlikely to be due to chance
p-value: estimation of likelihood of data being part of NULL hyp.
p<.05 significant
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Term
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Definition
TYPE I: rejecting null hyp. when it is true.
TYPE II: accepting null hyp. when it is false. |
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Term
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Definition
Standard deviation of sample means.
Summarises diversity of sample means.
Calculated from estimated SD. |
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