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Statistical Tests
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1Statistical tests are needed to tell us whether there is enough evidence to accept or reject the alternative [blank_start]hypothesis[blank_end]. The p-value is nearly always [blank_start]<0.05[blank_end].
Mann Whitney, Wilcoxon and [blank_start]Chi Squared[blank_end] are used in tests of difference. [blank_start]Spearman's Rank[blank_end] is used in tests of association or correlation.
Mann Whitney is used when the data is [blank_start]ordinal[blank_end] and when the experimental design is [blank_start]independent groups[blank_end].
[blank_start]Wilcoxon[blank_end] is used when the data is ordinal and when the experimental design is a repeated measures or [blank_start]matched pairs[blank_end].
Chi Squared is used when the data is [blank_start]nominal[blank_end] and the experimental design is an [blank_start]independent groups[blank_end] design.
Spearman's Rank is used when the data is [blank_start]ordinal[blank_end] and the test is of [blank_start]association or correlation[blank_end]- Ahypothesis
- B<0.05
- CSpearman's Rank
- DChi Squared
- Eordinal
- Findependent groups
- GWilcoxon
- Hmatched pairs
- Inominal
- Jindependent groups
- Kordinal
- Lassociation or correlation
2What is an example of nominal data?
- APreferred type of chocolate (dark, milk or white)
- BAge
- CLevels of fanciness
Information
- Description
- Statistical Tests in Psychology AS Level, Edexcel Includes: Mann Whitney U, Wilcoxon, Spearman's Rank & Chi Squared
- Author
- Jahdai Grey
- Language
- English
- Views
- 25
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