1. Measure of dispersion in normal distribution from mean is known asMedianVarianceStandard deviationRangeQuestion 1 of 20 2. The purpose of double blinding in clinical trials is toAvoid subject biasAchieve comparability between study and controlAvoid observer biasAvoid observer and subject biasQuestion 2 of 20 3. Barefoot doctor term has evolved fromMesopotamianChineseGreekEgyptQuestion 3 of 20 4. A boy was bitten by a stray dog. The dog was caught by the authorities and appeared normal. What is the protocol for further treatment?Give cell culture derived anti- rabies vaccine to the childWait and watch the dog for 10 days for signs of rabies and then administer the antirabies vaccine to the child as recidiredInvestigate the dog serum for presence of anti-rabies antibodiesEuthanize the dogQuestion 4 of 20 5. A screening test is used in the same way in two similar populations; but the proportion of false positive results among those who test positive in population A is lower than those who test positive in population B. What is the likely explanation?The specificity of the test is lower in population A.The specificity of the test is higher in population A.The prevalence of the disease is higher in population AThe prevalence of the disease is lower in population A.Question 5 of 20 6. According to Dunning classification, the screening procedure only using tongue depressor and available illumination inspection in school children and to identify the treatment needsType 3Type 2Type 4Type 1Question 6 of 20 7. Most common occupational cancer in India?Skin cancerLung cancerBladder cancerBrain cancerQuestion 7 of 20 8. In statistical studies, data represents:Sample groupsObservational recordsWhole sampleEvery individual of sampleQuestion 8 of 20 9. Helsinki declaration is forEthical duties and rules for dentists in general practiceAll of the aboveEthical duties for biomedical research involving human subjectsEthical duties and rules for physicians in general practiceQuestion 9 of 20 10. Which of the following is cariogenicSeleniumStrontiumMolybdenumFluorideQuestion 10 of 20 11. The recent spread of Swine flu was in the news, this type of transmission can be termed:PandemicSporadicEndemicEpidemicQuestion 11 of 20 12. 85% of lung cancer among smokers was due to their smoking. This is an example ofAttributable riskPopulation attributable risk.Odds ratioRelative riskQuestion 12 of 20 13. The best indicator of current caries susceptibility of an adult Number of teeth presentNumber of filled teethLevel of plaque at the time of examinationNumber of teeth with pit and fissure sealantsQuestion 13 of 20 14. Vitamin A prophylaxis is an example ofSpecific protectionDisability limitationPrimordial preventionHealth promotionQuestion 14 of 20 15. Occurrence of malocclusion in a given population termed as?ProbabilityIncidenceMortalityPrevalenceQuestion 15 of 20 16. In a study in UK, an association was found between sale of an antiarrhythmic drug and an increase in deaths due to asthma. This is an example of:Cohort studyCase reference studyExperimental studyEcological studyQuestion 16 of 20 17. Which amongst the following is simplest most commonly used to describe the variation in a quantitative sampleStandard deviationModeRangeMeanQuestion 17 of 20 18. Paired t test is equivalent in non parameteric testMann-Whitney TestMc Nemar's TestKruskal-Wallis TestWilcoxon Signed TestQuestion 18 of 20 19. In a study done in 2014, the socioeconomic status of subjects was associated with incidence of new carious lesions. This type of study design is called:RetrospectiveDescriptiveAnalyticCase controlQuestion 19 of 20 20. Patient can be diagnosed for improper oral hygiene maintenance byLactobacillus countSwab testProper dietary historyDisclosing agentsQuestion 20 of 20 Loading...
