In an Experimental Study

question 54

Multiple Choice

In an experimental study

• A)1 variable is measured and 2 groups are compared
• B)2 variables are measured and 2 groups are compared
• C)1 variable is measured and there is only 1 group of participants
• D)2 variables are measured and there is only 1 group of participants

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Definitions:

Müller-Lyer Illusion

Illusion of line length that is distorted by inward-turning or outward-turning corners on the ends of the lines, causing lines of equal length to appear to be different.

Properties of Sound

Characteristics of sound waves, including frequency, amplitude, and timbre, that determine the pitch, loudness, and quality of sounds.

Brightness

The perception of how luminous an object appears; the intensity of light emitting from or reflecting off its surface.

Perceptual Expectancy

The predisposition to perceive things in a certain way due to previous experiences or assumptions.