1. New auxiliary types Dental hygienist with expanded dutiesDental licentiate, dental aideTechnotherapistFrontier auxiliariesQuestion 1 of 20 2. Ability of screening test to correctly identify the diseaseNegative predictivePositive predictiveSpecificitySensitivityQuestion 2 of 20 3. Incidence can be calculated byCase control studyCross sectional studyProspective studyRetrospective studyQuestion 3 of 20 4. Degree of relationship between cause and effect is represented byRisk ratioP valuePower of studySignificanceQuestion 4 of 20 5. EnameloplastyFissures are broadened and made self-cleansable1/3 of enamel is removed1/2 of enamel is removed1/4 of enamel is removedQuestion 5 of 20 6. A dentist assigns a specific task to be done on a patient to a junior doctor. The dentist remains in the set up while the task is carried out but does not continuously watches the task is being carried out. What is this called:Personal supervisionGeneral supervisionDirect supervisionIndirect supervisionQuestion 6 of 20 7. When analyzing a small sample with two sets of observations where values of observations are dependent on each other, which test will be used:Unpaired T testPaired T testFisher F testZ testQuestion 7 of 20 8. Savlon containsCetrimide + CetavlonCetrimide + ChlorhexidineCetrimide + butyl alcoholCetrimide + Chlorhexidine + butyl alcoholQuestion 8 of 20 9. Simplest commonly used method of measuring variation in a population isMedianMeanRangeSDQuestion 9 of 20 10. Which of the following characteristics is not of much importance in a screening testHigh sensitivityHigh specificityHigh safety marginLow costQuestion 10 of 20 11. 85% of lung cancer among smokers was due to their smoking. This is an example ofOdds ratioAttributable riskRelative riskPopulation attributable risk.Question 11 of 20 12. In a study, significant relation is found between obesity and caries. However, the data for the study was collected only from food manufacturers and hospitals. This type of study design is calledEcological studyPsephological studyCross sectional studyRandomized trialQuestion 12 of 20 13. While calculating Infant mortality rate, which of the following is not includedStill birthPerinatal deathPostnatal deathNatal deathQuestion 13 of 20 14. 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 14 of 20 15. Which one of the following is a good index of the severity of an acute disease?Five year survival.Cause specific death rate.Standardized mortality ratio.Case fatality rate.Question 15 of 20 16. The most suitable method for presenting frequency distribution of data gathered from continuous variables isLine diagramHistogramPictogramBar graphQuestion 16 of 20 17. The purpose of double blinding in clinical trials is toAvoid subject biasAvoid observer and subject biasAchieve comparability between study and controlAvoid observer biasQuestion 17 of 20 18. Anganwadi Worker (AWW) is appointed for population500010003000020000Question 18 of 20 19. Which is not an epidemiological method of population surveyTwin studiesCorrelational studiesCommunity trialsEcological studiesQuestion 19 of 20 20. All of the following are true about standard error of mean except:As the sample size increases, standard error will also increaseUsed to estimate confidence limitIt depends on standard deviation of meanBased on normal distributionQuestion 20 of 20 Loading...
