Compare and Contrast the Visual Functions of Rods and Cones

question 41

Essay

Compare and contrast the visual functions of rods and cones.

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Definitions:

Predictive Validity

The extent to which a score on a scale or test predicts future performance on a related outcome.

Concurrent Validity

A measure of how well a particular test correlates with a previously validated measure taken at the same time.

Construct Validity

The extent to which a test measures the theoretical construct or concept it is intended to measure.

Content Validity

A type of validity that examines how well a test samples a universe of items.