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Why Do Experimenter Expectancy Effects Lower the Internal Validity of Experiments

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Why do experimenter expectancy effects lower the internal validity of experiments?


Definitions:

Straight Photography

A style of photography that emphasizes sharp focus, clear depiction of the subject, and straightforward composition without manipulation or artistic effects.

Edward Weston

An influential American photographer known for his images of the natural forms, nudes, and landscapes, contributing to the field of art photography in the 20th century.

Man Ray

An American visual artist who spent most of his career in France, contributing significantly to both the Dada and Surrealist movements with his innovative photographic techniques and works.

Edward Weston

An influential American photographer known for his images of the natural form, landscapes, and still lifes.

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