Try the following self-assessment questions. When you have decided on your answer, mouse over the answer button to check:

 

1. For each of the following features, say whether it applies to a Pearson correlation?

  • Nonparametric test. The answer is no
  • Numbers plugged into the formula for the statistic are frequencies . The answer is no
  • Numbers plugged into the formula for the statistic are ranks. The answer is no
  • Used if the differences between samples need to be assessed. The answer is no
  • Used on related data. The answer is yes
  • Uses a statistic called a correlation coefficient. The answer is yes
  • Uses the r statistic. The answer is yes
  • Reject the null hypothesis if the calculated statistic is greater than the critical value of the statistic looked up in a table. The answer is yes
  • Reject the null hypothesis if P on the SPSS printout is less than 0.05.  The answer is yes