Practice Quiz

EPPP Psychology

Category - Research Methods and Statistics

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Choosing what type of bivariate correlation coefficient to use in statistical analysis depends on what type of data variable X and variable Y are. You are analyzing the results of a survey about satisfaction with current political happenings in which subjects answered questions on a scale of 0-5, 0 being not at all satisfied and 5 being completely satisfied. They also answered questions about amount of time spent reading or watching news on a similar scale. What bivariate correlation coefficient might you use?
  1. Pearson r
  2. Spearman’s Rho
  3. Phi
  4. Tetrachoric
Explanation
Answer: B - Spearman’s Rho is the best choice for this study because both variables are ordinal-they are discrete values that can be ranked. Kendall’s Tau is another coefficient used with this type of data.
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