Describe Research Methodologies That Involve Manipulation of an Independent Variable

question 109

Essay

Describe research methodologies that involve manipulation of an independent variable.What relationship does the dependent variable have to the independent variable? Include an explanation of experimental group,control condition,and random assignment.

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Definitions:

Ultrasound

A technique that uses high-frequency sound waves to create images of the inside of the body.

Heart Motion

The movement of the heart as it contracts and relaxes to pump blood throughout the body.

PVC

Polyvinyl chloride, a synthetic plastic polymer used in a wide variety of applications, from piping and clothing to furniture and signage.

ECG

Electrocardiogram, a medical test that records the electrical activity of the heart over a period of time using electrodes placed on the skin.