The Correlation Between X and Y Holding at Least One

question 29

Multiple Choice

The correlation between X and Y holding at least one other variable constant for only X or only Y is known as:

• A) partial correlation.
• B) unconditional correlation.
• C) semi-partial correlation.
• D) linear regression.

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Definitions:

Nosepiece

The part of a microscope that holds the objectives and can be rotated to change the magnification.

Objective Lenses

Lenses closest to the specimen in a microscope that magnify the image of the sample.

Focus Knobs

Controls on a microscope that adjust the clarity and sharpness of the specimen being viewed by moving the lenses closer or farther from the specimen.

Iris Diaphragm

A mechanical device, typically part of a camera or microscope, that controls the amount of light passing through a lens or onto a specimen.