Which of the following is true about the Pearson product moment correlation?
a. Determines relationships between a set of predictors and one outcome
b. Examines bidirectional relationships between two variables
c. Investigates relationships between an independent and dependent variable
d. Measures variables at the nominal level
ANS: B
Correlational analyses are performed to identify relationships between or among variables. Variables can vary (change in different directions) or change in the same direction.
The Pearson product moment correlation does not determine relationships between a set of predictors and one outcome. Correlational analyses are performed to identify relationships between or among variables. Variables can vary (change in different directions) or change in the same direction.
It measures the extent of relationship between two variables or among variables. Correlational analyses are performed to identify relationships between or among variables. Variables can vary (change in different directions) or change in the same direction.
Data do not need to be nominal level for this statistic. Correlational analyses are performed to identify relationships between or among variables. Variables can vary (change in different directions) or change in the same direction.
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