Quiz
Week 1
Questions in this quiz (8)
1Why should you use an ANOVA, rather than lots of t tests?
- APerforming lots of t test increases the probability of making a Type 1 error
- BPerforming lots of t tests increases the probability of making a Type 2 error
- CPerforming lots of t tests increases the chance of failing to reject a false null hypothesis
- DAll of the above
2The ANOVA statistic is calculated by __________
- AMultiplying the between groups variance by the within groups variance
- BSubtracting the between groups variance from the within groups variance
- CAdding the between groups variance to the within groups variance
- DDividing the between groups variance by the within groups variance
3You calculate an F ratio and get a value more than 1. How would you interpret this?
- AThere is the less between groups variance than within groups variance
- BThere is the same amount of between groups variance and within groups variance
- CThere is no within groups variance
- DThere is more between groups variance than within groups variance
4You have calculated the SSbetween as 10 and the SStotal as 15. What would the SSwithin be?
- A25
- B0.067
- C-5
- D5
5Your study has four conditions with 20 participants in each condition. What would the dfwithin be?
- A77
- B76
- C79
- D80
6Which of the following is the correct way to calculate the MSbetween?
- ASSbetween ÷ dfbetween
- BSSbetween ÷ SStotal
- CSSbetween x dfbetween
- DSSbetween x dftotal
7What does eta squared tell us?
- AIf homogeneity has been established
- BIf there is a significant difference between groups
- CHow much of the variance in the independent variable can be accounted for by the dependent variable
- DHow much of the variance in the dependent variable can be accounted for by the independent variable
8If an author reports the results of an ANOVA as F (4, 65) = 9.56, p = .01, what is the between-groups degrees of freedom?
- A5
- B65
- C9.56
- D4
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- User has deleted their subject information Quiz on Week 1, created by Deleted user on 19/05/2019.
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