An Experimental Design Is

question 76

Multiple Choice

An experimental design is:

• A) one in which the investigator has direct control over at least one independent variable.
• B) less capable of providing evidence of causal relationships than is an exploratory design.
• C) less internally valid than a descriptive study.
• D) used only in realistic situations.
• E) best suited for longitudinal analysis.

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Definitions:

Psoriasis

A common skin condition characterized by reddish-silver, scaly lesions most often found on the elbows, knees, scalp, and trunk.

Dorsiflexion

The movement that brings the top of the foot toward the shin, decreasing the angle between the foot and the leg.

Plantar Flexion

The movement of the foot that points the toes downward, away from the leg.

Eversion

The process of turning inside out or being turned inside out.