ADD Test: Sensitivity, Specificity, Positive/Negative Prediction
Not what you're looking for?
A diagnostic test for attention deficit disorder (ADD), determines that 83 children have the disorder and that 1,325 do not. However, 4 of the children that were diagnosed as having ADD, do not actually have it. Furthermore, 15 children that were diagnosed as not having ADD, actually do have ADD. What is the sensitivity, specificity, positive predictive value and negative predictive value of this test?
Purchase this Solution
Solution Summary
The expert examines the test used to diagnose ADD. Sensitivity, specificity and positive/negative predictions are examined.
Solution Preview
Sensitivity = # of true positives / # of true positives + number of false negatives = 94 / 94+ 15 = 94/109 = 86.2%
True positive: Sick people correctly diagnosed as sick = ...
Purchase this Solution
Free BrainMass Quizzes
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.
Terms and Definitions for Statistics
This quiz covers basic terms and definitions of statistics.
Measures of Central Tendency
Tests knowledge of the three main measures of central tendency, including some simple calculation questions.
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.