Explain Why the Validity of Quasi-Experimental Designs Is Strengthened by Using

question 16

Essay

Explain why the validity of quasi-experimental designs is strengthened by using multiple pretests, switching replications, and selecting a comparison group as similar as possible to the experimental group:​

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Definitions:

Young-Helmholtz Trichromatic Model

A theory of color vision proposing that the human eye has three types of receptors with different sensitivities to different light wavelengths.

Primary Color

Fundamental colors (typically red, yellow, and blue) that cannot be created by mixing other colors and from which other colors can be derived.

Trichromatic Theory

A theory of color vision that suggests the human eye has three types of receptors sensitive to different wavelengths of light, corresponding to red, green, and blue colors.

Afterimage

A visual image or illusion that continues to appear in one's vision after the exposure to the original image has ceased.