The Purpose of Matching in Designs with Subject Variables Is

question 26

Multiple Choice

The purpose of matching in designs with subject variables is to:

• A) directly measure the influence of matched variables across groups
• B) avoid the possibility of selection bias
• C) increase the sensitivity of the dependent variable
• D) minimize confounding

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Definitions:

Rods

Light-sensitive cells in the retina that function in low light.

Color Vision

The ability of an organism to differentiate various light wavelengths, enabling it to see and interpret a range of colors.

Hue

A color or shade, representing the aspect of color that is determined by the wavelength of light.

Saturation

The point at which a substance can absorb or dissolve no more of another substance, or in signal processing, the maximum limit of signal strength.