What Is the Formula for the Pearson Correlation Coefficient?
A)

question 139

Multiple Choice

What is the formula for the Pearson correlation coefficient?

• A) \(\frac { \sum \left[ \left( X - M _ { X } \right) \left( Y - M _ { Y } \right) \right] } { \sqrt { \left( S S _ { X } \right) \left( S S _ { Y } \right) } }\)
• B) \(\frac { \sum \left[ \left( X - M _ { X } \right) \left( Y - M _ { Y } \right) \right] } { \sqrt { \left( S D _ { X } \right) \left( S D _ { Y } \right) } }\)
• C) \(\frac { \sum \left[ \left( X - M _ { X } \right) \left( Y - M _ { Y } \right) \right] } { \left( S S _ { X } \right) \left( S S _ { Y } \right) }\)
• D) \(\sum \left[ \left( X - M _ { X } \right) \left( Y - M _ { Y } \right) \right]\)

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Definitions:

Informed Consent

The process through which individuals are provided with sufficient information about a study to make an educated decision about their participation.

Institutional Safeguard

Measures and policies implemented to protect the integrity, security, and functionality of institutions.

Essential Elements

Fundamental components or aspects necessary for something to function or achieve its purpose.

Instrument Validity

The degree to which a tool, test, or measure accurately assesses the specific concept it is intended to measure.