Flashcards
Correlations
Cards in this deck (9)
- 1What is the correlation coefficient?The correlation coefficient is r.
- 2Where does positive correlation start and end from?From 0 to +1
- 3State the strength and direction of this correlation coefficient: r = -0.77The strength is Strong and the direction is negative.
- 4State the same for this one r = 0.0There is no relationship.
- 5Can a correlation be used to infer causality between two variables?No, rather it is an association between two variables, you cannot establish a causal relationship.
- 6What sort of data does Pearson's r which is parametric require?Interval or ratio data
- 7What sort of graph is associated with correlations?Scatterplot
- 8How do you check for homogeneity of variance?Use Levene's test
- 9What is the equivalent of Independent samples t-test?Mann-Whitney U test
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- Flashcards on Correlations , created by Nisa Limbu on 15/02/2021.
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- Nisa Limbu
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