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10 Cards in this Set
- Front
- Back
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What does 2 dependent samples evaluate? |
Evaluates whether the mean of the difference between 2 variables is significantly different from 0 |
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A Dependent measures or within-subjects design |
The dependent variables is measures two or more times for each individual in a single sample - the same group of subjects are all used in all treatment conditions Ex. Group A measured in pre-treatment, during treatment & post-trratment |
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Hypothesis for Dependent samples |
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Forumla for dependent samples t-test |
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Assumptions for a Dependent Samples t-test |
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How to Check Assumptions |
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Cohen's d |
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Effect Size |
A measure of the absolute magnitude of an effect or relationship |
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Evaluation of effect size for Cohen's d |
Small = 0.2 Medium = 0.8 Large => 0.8 |
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Confidence intervals |
Intervals are produced that include the population parameter a certain percentage of the time Most common is 95% Ex. n=25 and running the repetition is 100, 95% of those repeated samples would produce intervals containing the true population value |
