<prompt> Ideal screening test should beSafeReliableValidAll of the above  <response>: The criteria for screening are based on two consideration :Disease to be screened, andScreening test to be applied.A Disease to be screenedThe disease should be an important health problem with a recognizable latent or asymptomatic stage.There should be a test screening test which can detect the disease prior to clinical stage, with also availability of a diagnostic confirmatory test.There should be an effective treatment which should reduce morbidity and mortality if started early. B Screening test to be appliedThe screening test to be applied should fulfil following criteria 1 AcceptibilityThe test should be acceptable to the people whom it is aimed. 2 Repeatability reliabilityThe test must give consistent results when it is repeated more than once on the same individual under same condition, i.e. results of test must by precise exact.Thus, repeatability is also known as precision, reliability or reproducibility. 3 Validity accuracyIt refers to what extent the test accurately measures which is purports to measure.Validity has two componens : i Sensitivity ii Specificity.A test should have high sensitivity and specificity 