Question

Explain the importance of validity and reliability in diagnostic testing or research. describe how validity relates to sensitivity and specificity in diagnostic testing. identify a health screen specific to a diagnostic test that is currently being debated regarding its use, recommended ages or frequency and discuss how validity and reliability plays into this debate. what other factors should you consider when you assess the recommendations for diagnostic test or screen?

Answer 1

Realibility is a consitency of a measure and validity is the accuracy of a measures. it is important to consider both in research design, planning methods, writing results in quantitative research. it helps generate our finding to major population.sensitivity and specificity measure for valid. it measures the accuracy and positive of the test. sensitivity is the ability of the test correctly to identify the disease. specificity is a ability of the test correctly to identify the results who do not have the disease, it wont provide false-positive results. sensitivity measures positive results for the people who have the condition that is being tested that provide true positive rate. screening female populaiton by cervical smear test is a sensitive test. many women with positive cervical smear have colposcopy found to have no underlying pathology. research results pertain to validity.validity is a measure refer to the degree to actual measure. Reliability refers to the degree in which that measure the result than be replicated. Factors to be considered when you assess the recommendations for diagnostic test include patient population, size, age factors, disease to be diagnosed, study length, patient compliance and efficacy of the treatment.