Counterbalancing in Within-Subjects Designs Controls for the Effects of

question 14

Multiple Choice

Counterbalancing in within-subjects designs controls for the effects of

• A) the order of the treatment and control conditions.
• B) lack of random assignment.
• C) using different groups of subjects in each condition.
• D) history and maturation.

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Definitions:

Hemorrhoids

Swollen and inflamed veins in the rectum and anus that cause discomfort and bleeding.

Rectum

The rectum is the final section of the large intestine, terminating at the anus, where feces are stored until they leave the body.

Anal Canal

The last few centimeters of the rectum.

Contrast Medium

A substance used in medical imaging to improve the contrast of structures or fluids within the body to allow for clearer imaging results.