SOLVED2398

A screening test for detecting dementia in the elderly is found to have a sensitivity of 85% and a specificity of 90%. These results pertain to its administration to 50 elderly people with dementia and 50 elderly people without dementia. A family nurse-practitioner decides to screen all of the elderly people in her clinic, where the prevalence of dementia is estimated to be around 15%. Which of the following statements will be true about the predictive value of a positive result on this screening test when it is used in this clinic? Group of answer choices it will decrease as the specificity increases in the new setting it will decrease because the prevalence of dementia decreased in the new setting it will be change in relation to the change in the sensitivity of the test it will not change
SCIENCE
HEALTH SCIENCE
NURSING

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