You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Diagnostic accuracy of a test is determined by- and explain in detail?
<p>predictive value which reflects the diagnostic power of the test.the predictive accuracy depends upon specificity,and disease prevalence.the predictive value of a positive test indicates the probability that a patient with a positive test result has in fact the disease in question the more prevalent a disease is in a given in population,the more accurate will be the predictive value of a positive screening test.</p><p>ref:park&;s textbook,22 nd edition,pg no132 </p>