A Researcher Computes a Correlation Coefficient Between Variables X and Y

question 71

Multiple Choice

A researcher computes a correlation coefficient between variables X and Y using a handheld calculator. Which of the following values would automatically tell the researcher that he or she made a mistake?

• A) 2.50
• B) .75
• C) 0
• D) -.98

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Definitions:

Lumbar Plexus

A network of nerve fibers in the lumbar region of the body, providing sensation and movement.

Cervical Plexus

A network of nerves in the neck that supplies movement and sensation to the neck, upper shoulders, and part of the arms.

Patellar Reflex

A reflex action in which the patellar tendon is tapped, causing the quadriceps muscle to contract and kick the lower leg forward.

Rectus Femoris Muscle

A muscle of the anterior thigh that is part of the quadriceps group, involved in knee extension and hip flexion.