I If There Is Absolutely No Relationship Between Two Variables

question 52

Multiple Choice

i. If there is absolutely no relationship between two variables, what will Pearson's r equal? ii. If the value of r is -0.96, what does this indicate about the dependent variable as the independent variable increases?
iii. What is the value of the correlation coefficient if there is perfect correlation?

• A) one (1); decreases; zero (0).
• B) one (1); increases; zero (0).
• C) zero (0); decreases; +/-1.0.
• D) zero (0); increases; +/-1.0.
• E) +/-1.0; nothing; +/-1.0.

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Definitions:

Intelligence Scores

Numerical assessments derived from standardized tests that attempt to measure an individual's cognitive abilities and potential.

Heredity

The transmission of traits or characteristics from parents to offspring through genes across generations.

Identical Twins

Twins that originate from the same fertilized egg, sharing 100% of their genetic material.

Fraternal Twins

Twins who are born at the same time but are not genetically identical; they developed from two different eggs fertilized by separate sperm cells.