1. Which of the following statements about confidence limits/ interval is true:Sample size does not affect the confidence intervalSmaller the confidence level larger will be the confidence interval95% confidence interval will cover 2 standard errors around the meanLess variable the data, wider will be the confidence intervalQuestion 1 of 20 2. STROBE guidelines are applied to:Randomized trialsNon-concurrent studiesCross over studiesObservational studiesQuestion 2 of 20 3. Barefoot doctor term has evolved fromMesopotamianEgyptChineseGreekQuestion 3 of 20 4. Disinfectant used for blood spillsSodium hypochloriteGlutaraldehydeEthanolPhenolQuestion 4 of 20 5. n-3 PUFA is present in all except:Mustard oilCorn oilGroundnut oilFish oilQuestion 5 of 20 6. Which amongst the following is simplest most commonly used to describe the variation in a quantitative sampleStandard deviationModeMeanRangeQuestion 6 of 20 7. Common to both acute and chronic malnutrition isWeight for heightWeight for ageHeight for ageBMIQuestion 7 of 20 8. In case of Confounding variable which type of association is seen between disease and factorIndirectSpuriousDirectTemporalQuestion 8 of 20 9. According to ESI Act 1948, Which of the following is trueFuneral benefit is Rs. 50,000Employee has to contribute 4.75% and employer contributes 8.75%Person with daily wage of Rs. 70/- would contribute RS.300/- to ESI monthlyCentral government to pay 1/8th of the bill while the ESI would pay 7/8thQuestion 9 of 20 10. Reliability of a screening test refers to:Accurately measures what it is supposed to measureDepends on knowledge of the observerGives same values even on repeated testingThe extent to which the observer can go in finding the resultQuestion 10 of 20 11. Anti-Rabies vaccine is not indicated in:Monkey biteDog biteRat biteCat biteQuestion 11 of 20 12. Degree of relationship between cause and effect is represented byP valuePower of studyRisk ratioSignificanceQuestion 12 of 20 13. Simplest commonly used method of measuring variation in a population isSDMeanRangeMedianQuestion 13 of 20 14. In statistical studies, data represents:Whole sampleSample groupsObservational recordsEvery individual of sampleQuestion 14 of 20 15. Which of the following has got the highest fluoride content:Acidulated Phosphate fluorideCasein phosphopeptideFluorprotectorDuraphatQuestion 15 of 20 16. Cavity conditioning in ART is done by37% Phosphoric AcidCocoa Butter10% Polyacrylic AcidPetroleum JellyQuestion 16 of 20 17. Causative agent for AIDS was established in1994198319691972Question 17 of 20 18. In an epidemiological study, the first case which comes to the attention of the investigator isPrimary caseIndex caseSecondary caseReference caseQuestion 18 of 20 19. When chlorate in water starts to disappear and free chlorine starts to appear, it is calledEnd pointScreen pointFlow pointBreak pointQuestion 19 of 20 20. Age was found to be a factor affecting the relation of diabetes mellitus and periodonticsConfounding BiasSelection BiasInformation BiasSampling BiasQuestion 20 of 20 Loading...