Describe the Four Types of Internet Search Tools

question 20

Essay

Describe the four types of Internet search tools.

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Definitions:

Visual Acuity

The sharpness or clarity of vision, often measured by the ability to discern letters or numbers at a given distance according to a standardized chart.

Absolute Threshold

The minimum level of stimulus intensity needed for a stimulus to be perceived or detected at least half the time by an observer.

Perceptual Invariance

The ability to perceive the unchanging properties of objects (shape, size, brightness, color) despite variations in the sensory input.

Absolute Threshold

The smallest amount of stimulation needed for a stimulus to be detected by the senses 50% of the time.