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With Regard to Item-Discrimination Indices,a D Equal to -1 Is

question 24

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With regard to item-discrimination indices,a d equal to -1 is


Definitions:

Cholecystography

A radiographic examination of the gallbladder after the administration of a radiopaque contrast medium.

Gastroduodenoesophagoscopy

A diagnostic procedure that allows a doctor to examine the lining of the esophagus, stomach, and beginning of the duodenum using a flexible scope.

Cholangiography

A medical imaging technique used to visualize the bile ducts to diagnose obstructions or diseases.

Esophagogastroduodenal Endoscopy

A medical procedure that involves the insertion of a flexible tube with a light and camera to examine the lining of the esophagus, stomach, and upper duodenum.

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