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A researcher trains observers to complete checklists while observing children's behavior on the schoolyard during recess.Over the course of the study,observers become more reliable in their observations.Any effect of a treatment in this study might be confounded with an ____________ threat to internal validity.
Examination Position
A specific stance or posture a patient is asked to take during a medical examination to allow for better accessibility or visibility.
Knee-Chest Position
A body position used in medical examination or treatment where the patient kneels and then brings the chest down towards the examination table.
Access Drape
A specialized sterile cloth used in surgery to allow access to the surgical site while maintaining a sterile field around the area.
Colorectal Cancer
A type of cancer that begins in the colon or rectum, parts of the large intestine, and can involve either benign polyps becoming cancerous over time or malignant tumors forming.
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