Suppose You Compute the Correlation Coefficient Between Two Variables, X

question 50

Multiple Choice

Suppose you compute the correlation coefficient between two variables, X and Y, and obtain a value of 0.55.Then you realize that all the values for both variables have been corrupted in a way that their actual sign has been changed (positive values were turned into negative values and vice versa; only the signs have been changed) .Then the actual, corrected value of the correlation coefficient ______.

• A)is −0.55
• B)remains unchanged
• C)changes but there is not enough information to determine the correct value
• D)is 0
• E)is 0.50

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Definitions:

Aggregate Measurements

A type of measurement that combines data from multiple sources or individuals to provide a collective or summary measure.

Error Variance

Error variance refers to the portion of variability in a set of data that results from factors other than the independent variable, often attributed to random or uncontrolled variables.

Shyness

A temperament or personality condition characterized by a feeling of unease or inhibition in social situations, possibly leading to avoidance.

Measurement Principle

The fundamental concept that any phenomenon to be studied must have a corresponding method of measurement to be scientifically investigated.