1. Problem of recall bias is seen in:Case controlCross sectional studiesEpidemiological studiesCohortQuestion 1 of 20 2. The best indicator of current caries susceptibility of an adult Level of plaque at the time of examinationNumber of teeth with pit and fissure sealantsNumber of teeth presentNumber of filled teethQuestion 2 of 20 3. All of the following are true about cluster sampling except:The sample size may vary according to study designIt is a type of probability sampleSamples are similar to those in Simple Random SamplingIs a Rapid and simple methodQuestion 3 of 20 4. Universal Immunization Programme includes all except:HPVDPTBCGMeaslesQuestion 4 of 20 5. Study done on a group of patients showed coefficient of variance for BP and serum creatinine to be 20% & 15% respectively. Inference is that:Variation in serum creatinine is more than in BPStandard deviation of creatinine is more than of BP.Variation in BP is more than in serum creatinine.Standard deviation of BP is more than of creatinineQuestion 5 of 20 6. Crude death rate is usually measured per ___________ of population:100100001000100000Question 6 of 20 7. Education of young children in school about the harmful effects of soft foods leading to caries is done to prevent dental caries. What is this type of prevention calledPrimary preventionSecondaryTertiary preventionEducational interventionQuestion 7 of 20 8. Iceberg phenomenon differentiatesCases & carriersSymptomatic & asymptomaticDiagnosed and undiagnosedApparent & inapparentQuestion 8 of 20 9. An orphan population of 7-13 yrs age has been put on facto vegetarian diet, which study it wasTristan da cunha studyTurku studyVipehoirn studyHope wood house studyQuestion 9 of 20 10. Prevalence of disease will decrease in all of the following scenarios, exceptIf case-fatality rate is highAdvanced Treatment Modalities Are AvailableLack of Advanced Diagnostic Services at CentresImmigration of CasesQuestion 10 of 20 11. A test comes negative but the disease was present in subject. This isTrue positiveTrue negativeFalse negativeFalse positiveQuestion 11 of 20 12. Ability of screening test to correctly identify the diseasePositive predictiveSensitivitySpecificityNegative predictiveQuestion 12 of 20 13. Disinfectant used for blood spillsGlutaraldehydeSodium hypochloriteEthanolPhenolQuestion 13 of 20 14. QLF light emits blue colour when it is reflected on carious tooth which light is emitted?RedBlueVioletGreenQuestion 14 of 20 15. Recall bias is most commonly associated with which study designRandomized controlled trialCross-sectional studyCase control studyCohort studyQuestion 15 of 20 16. Mean respiratory rate in different kind of smokers and nonsmokers, categorized as four categories mild, moderate, heavy and nonsmoker. test used to assess the means between them -Two way ANOVAOne way ANOVAStudent t testChi square testQuestion 16 of 20 17. Reliability of a screening test refers to:The extent to which the observer can go in finding the resultAccurately measures what it is supposed to measureGives same values even on repeated testingDepends on knowledge of the observerQuestion 17 of 20 18. STROBE guidelines are applied to:Randomized trialsObservational studiesNon-concurrent studiesCross over studiesQuestion 18 of 20 19. Meta-analysis is helpful in dentistry to:Guide statistical testing for clinical proceduresDefine who is at risk of diseaseDecreases publication biasProvide quantitative summary measure from many studiesQuestion 19 of 20 20. In case of Confounding variable which type of association is seen between disease and factorIndirectSpuriousTemporalDirectQuestion 20 of 20 Loading...