1. Which of the following is true about Epidemiological survey as compared to clinical trial: 1. Sample size small 2. Cross sectional and longitudinal approach 3. Dental indices are used 4. Control and experimental group1,2 and31,4All are true2,3Question 1 of 20 2. According to Consumer Protection Act 1987, compensation against State consumer protection forum can be made up to20 lakhs - 1 croreLess than 20 lakhs1 crore - 9 croresMore than 10 croresQuestion 2 of 20 3. Ability of the test to correctly identify those who have disease:SpecificityReliabilitySensitivityAccuracyQuestion 3 of 20 4. A Path finder survey for oral health needs to be done at 12 sites for 4 index age groups at each site. What should be the sample size for the survey30015004001200Question 4 of 20 5. The avian flu H5N1 has high mortality in humans. However it has not been able to become a pandemic infection. What is the reason:Poor man to man transmissionIt causes serious illness leading to death of the patientIt easily spreads in wild birds but not in domestic poultryIts DNA has avian characteristicsQuestion 5 of 20 6. The no. of death due to oral carcinoma divided by mid-year population?Case fatality rateSpecific death rateProportional death rateCrude death rateQuestion 6 of 20 7. Meta-analysis is helpful in dentistry to:Decreases publication biasGuide statistical testing for clinical proceduresDefine who is at risk of diseaseProvide quantitative summary measure from many studiesQuestion 7 of 20 8. The recent spread of Swine flu was in the news, this type of transmission can be termed:SporadicEpidemicEndemicPandemicQuestion 8 of 20 9. While calculating Infant mortality rate, which of the following is not includedPerinatal deathStill birthNatal deathPostnatal deathQuestion 9 of 20 10. Which is not an epidemiological method of population surveyEcological studiesCorrelational studiesTwin studiesCommunity trialsQuestion 10 of 20 11. Mean bone density amongst two groups of 50 people each is compared with each other. The test of significance used would be:Paired-t-testStudent t-testAnalysis of varianceChi-Square testQuestion 11 of 20 12. Richest source of vitamin D isFish oilGreen leafy vegetablesMilkEggQuestion 12 of 20 13. Change in event with respect to time is best depicted byPie chartDot diagramBar diagramLine diagramQuestion 13 of 20 14. In which of the following disease, the overall survival is increased by screening procedureOvarian CaColon CaLung CancerProstate CaQuestion 14 of 20 15. Which of the following types of bias can be reduced by allowing equal interview timeRecall biasBerkesonian biasSelection biasInterviewer biasQuestion 15 of 20 16. All of the following are true about standard error of mean except:It depends on standard deviation of meanBased on normal distributionUsed to estimate confidence limitAs the sample size increases, standard error will also increaseQuestion 16 of 20 17. A standard z score is related to?Measure of central tendencyScore which is away from medianScore which is away from meanNone of the aboveQuestion 17 of 20 18. Which of the following exposure carries the maximum risk of transmission of HIV?Blood TransfusionSexual IntercourseTraits- placentalNeedle prickQuestion 18 of 20 19. A- learned behaviour which is permanent and consistent but liable to changeKnowledgeCultural beliefAttitudePracticeQuestion 19 of 20 20. Dentist act was passed in1942194519501956Question 20 of 20 Loading...
