Introduction a Main Difference Between Laboratory Experiments and Nonexperimental

question 35

Multiple Choice

Introduction A main difference between laboratory experiments and nonexperimental
Studies is that nonexperimental studies

• A)are easier to replicate.
• B)often achieve higher external validity.
• C)provide more objective data.
• D)provoke greater reactivity.

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Definitions:

Barium Enema

A diagnostic medical imaging procedure used to examine the interior of the colon by filling it with a barium sulfate contrast material.

Small Lesions

Minor or small areas of damaged tissue or abnormality in the body.

Barium Swallow

A radiologic procedure that involves oral administration of a barium sulfate drink to help diagnose and evaluate obstructions, ulcers, polyps, diverticuloses, tumors, or motility problems of the esophagus, stomach, duodenum, and small intestine; also called an upper GI (gastrointestinal) series.

Upper GI Series

A series of X-rays of the esophagus, stomach, and small intestine that uses a contrast material to diagnose problems in the upper gastrointestinal tract.