The CHN Can Enhance the Sensitivity and Specificity of a Test

question 9

Multiple Choice

The CHN can enhance the sensitivity and specificity of a test by using its predictive value. Which one of the following best defines positive predictive value?

• A) The proportion of persons with a negative test who are actually disease-free
• B) The variation inherent in the trait being measured
• C) Any inconsistency in the testing instrument
• D) The proportion of persons with a positive test who actually have the disease

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Definitions:

Intestines

The section of the digestive system where food is further digested after leaving the stomach, and where nutrients are absorbed into the body.

Eating Disorders

Mental disorders characterized by abnormal or disturbed eating habits that negatively affect one's health and emotions.

Anorexia Nervosa

A severe eating disorder characterized by an intense fear of weight gain and a distorted body image, leading to extreme food restriction and significant weight loss.

Bulimia Nervosa

A disorder characterized by episodes of excessive eating followed by actions like vomiting to avoid gaining weight.