Purchase Solution

Screening for rare disease (sensitivity and specificity of 99%)

Not what you're looking for?

Ask Custom Question

You are examined by an excellent screening test (sensitivity and specificity of 99%) for a rare disease (0.1% or 1/100 of the population). Unfortunately, the test is positive. What is the probability that you have the disease.

Purchase this Solution

Solution Summary

The expert examines screening for rare disease. Sensitivity and specificity of 99% is examined.

Solution Preview

We can use the following table to depict the test results vs. actual presence of the disease.
Has Disease
+ -
Test Results + a b
- c d

Commonly the following are the ...

Purchase this Solution


Free BrainMass Quizzes
Terms and Definitions for Statistics

This quiz covers basic terms and definitions of statistics.

Know Your Statistical Concepts

Each question is a choice-summary multiple choice question that presents you with a statistical concept and then 4 numbered statements. You must decide which (if any) of the numbered statements is/are true as they relate to the statistical concept.

Measures of Central Tendency

Tests knowledge of the three main measures of central tendency, including some simple calculation questions.

Measures of Central Tendency

This quiz evaluates the students understanding of the measures of central tendency seen in statistics. This quiz is specifically designed to incorporate the measures of central tendency as they relate to psychological research.