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EXAM PRACTICE

Prometric DHA HAAD Mock Test - 12

1. 
Calculate the median of trhese ten values.

2. 
Random sampling or probability sampling includes all the following techniques, except:

3. 
Gender, age-class, religion, type of disease, and blood group are measured on:

4. 
Which of the following methods is a form of graphical presentation of data?

5. 
The proportion of observations fall above the median is:

6. 
The Median value is the:

7. 
The type of research focused on finding a solution to an immediate practical problem is termed as:

8. 
Which of the following is TRUE about features of quasi-experimental research design?

9. 
Studies that produce basic estimates of the rates of disorder in a general population and its subgroups is:

10. 
Number of births divided by total population includes men women and children (1000s) is:

11. 
Quantitative data can be best represented by:

12. 
In 11 babies born in a hospital is 5 above 2.5 kg and 5 below 2.5 kg. The value 2.5 is:

13. 
A number of cases of malaria are collected over 10 years with extreme variation in data. The best measure to calculate average is:

14. 
Calculate the mode of 70, 71, 72, 70, 70.

15. 
In a community of 3000 people, 80% are Hindus, 10% Muslims, 5% Sicks, 4% Christians, and 1% Jains. To select a sample of 300 people to analyze food habits, ideal sampling method would be:

16. 
Cholesterol value are obtained in a group of people before and after giving drug A. the appropriate statistical test used to analyze the data is:

17. 
In a group of 100m children, the weight of child is 15 kg. The standard error is 1.5 kg. Which of the following is true?

18. 
A useful measure of lethality of an acute infectious disease is:

19. 
In an outbreak of cholera in a village of 2,000 population, 20 cases have occurred and 5 died. Case fatality rate is:

20. 
Descriptive epidemiology is study in relation to:

21. 
Residents of three villages with three different types of water supply were asked to participate in a study to identify cholera carriers. Because several cholera deaths had occurred in the recent past, virtually everyone occurred in the time submitted to examination. The proportion of carriers in each village who were carriers was computed and compared. The study is a:

22. 
Study of a person who has already contacted the disease is called:

23. 
Which is false about cohort study?

24. 
True about case control study are all, except:

25. 
In a community with prevalence of HIV 5%, if the sensitivity is 95% and specificity is 95% of ELISA, what is the predictive value of the test?

26. 
A  sampling process where each element of the population that is sampled is subjected to an independent Bernoulli trial which determines whether the element becomes part of the sample during the drawing of a single sample:

27. 
Data collection about everyone or everything in group or population and has the advantage of accuracy and detail:

28. 
A type of longitudinal study in which data are collected from the same people at two or more points in time:

29. 
In a village of 1 lakh population, among 20,000 exposed to smocking, 200 developed cancer, and among 40,000 people unexposed , 40 developed cancer. The relative risk of smocking in the development of cancer is:

30. 
Case control study is used for:

31. 
Incidence is defined as:

32. 
Death rate of two countries is compared by:

33. 
Most important characteristic of case control study is:

34. 
Which is the most appropriate method of research for studying incidence of diarrhea in a community?

35. 
Best method to calculate the incidence rate is:

36. 
All are true about cohort studies, except :

37. 
Study of a person who has already contacted the disease is called:

38. 
A useful measure of lethality of an acute infectious disease is:

39. 
In an outbreak of cholera in a village of 2,000 population, 20 cases have occurred and 5 died. Case fatality rate is:

40. 
Residents of three villages with three different types of water supply were asked to participate in a study to identify cholera carriers. Because several cholera deaths had occurred in the recent past, virtually everyone occurred in the time submitted to examination. The proportion of carriers in each village who were carriers was computed and compared. The study is a:

41. 
Relative risk can be obtained from:

42. 
Epidemiologists are interested in learning about ________ .

43. 
Diseases that are always present in a community, usually at a low, more or less constant, frequency are classified as having an ____ pattern.

44. 
Find the median of the set of numbers: 1,2,3,4,5,6,7,8,9 and 10.

45. 
The following represents age distribution of students in an elementary class. Find the mode of the values: 7, 9, 10, 13, 11, 7, 9, 19, 12, 11, 9, 7, 9, 10, 11.

46. 
Find the mode from these test results: 90, 80, 77, 86, 90, 91, 77, 66, 69, 65, 43, 65, 75, 43, 90.

47. 
Find the mode from these test results: 17, 19, 18, 17, 18, 19, 11, 17, 16, 19, 15, 15, 15, 17, 13, 11.

48. 
These numbers are taken from the number of people that attended a particular church every Friday for 7 weeks: 62, 18, 39, 13, 16, 37, 25. Find the mean.

49. 
The following numbers represent the ages of people on a bus : 3,6,27,13,6,8,12,20,5,10. Calculate their mean of their ages

50. 
Find the mean of these set of numbers : 100, 1050, 320, 600 and 150.

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