BIOSTATIC EMQ MOCK EXAM
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Question 1 of 50
1. Question
Option List
A. 20%
B. 10%
C. 66.6%
D. 90%
E. 52.9%
F. 50%
G. 100%
H. 25%
I. 33%
J. 40%
K. 16%
L. 18%
M. 4%
N. 81%
Lead in: A diagnostic accuracy study of a new test to diagnose UTI in women reveals following data.Urine dipstick plus Culture POSITIVE
Urine dipstick plus Culture NEGATIVE
NEW TEST +ve 40 20 NEW TEST -ve 160 180 1. What is the sensitivity of the new test?
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Question 14 of 50
14. Question
2. What is the specificity of new test?
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Question 14 of 50
14. Question
3. What is the PPV of new test?
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Question 14 of 50
14. Question
4. What is the NPV of new test?
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Question 14 of 50
14. Question
Option List
A. 20
B. 25
C. 30
D. 70
E. 120
F. 77
G. 14
H. 180
I. 100
J. 200
K. 90
L. 250
M. 50
N. 270Lead in:
New diagnostic study is being evaluated for its accuracy to diagnose Hydatidiform mole. The sensitivity was 70% and specificity was 90%. In the study there were 100 patients who truly had H.mole and 200 who truly did not.
5. How many false negatives in the study?
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Question 15 of 50
15. Question
6. How many false positive in the study?
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Question 14 of 50
14. Question
Option List
A. 5%
B. 15%
C. 95%
D. 85%
E. 100%
F. 11%
G. 10%
H. 115%
I. 105%
J. 68%
K. 99%
L. 97%
M. 33.33%
N. 66.66%Lead in:
A new study showed the mean Hb level in high risk pregnancy was 10g% and in Normal pregnancy was 11g%. The probability that this was due to chance was 0.05. And the probability of telling there is no difference when there is in reality is 0.15.7. What is the p vale?
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Question 14 of 50
14. Question
8. What is the power?
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Question 15 of 50
15. Question
Option List
A. 100%
B. 50%
C. 3%
D. 33.3
E. 97%
F. 5%
G. 80%
H. 68%
I. 95%
J. 25%
K. 75%
L. 10%
M. 70%
N. 4%Lead in:
The West of Scotland Coronary Prevention Trial (WOSCOP) study was a randomized clinical trial that tested the efficacy of Pravastatin (a cholesterol lowering “statin” drug) in several thousand men with hypercholesterolemia, but no previous history of coronary heart disease, over a 5 year period. There were 100 “events” in the 3,000 men in the intervention arm, and 200 “events” in the 3,000 men in the placebo arm.
9. The relative risk in the above study is?
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Question 14 of 50
14. Question
10. The relative risk reduction in the above study is?
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14. Question
11. What is the Absolute risk reduction in the above study?
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14. Question
12. The number needed to treat in the above study is?
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Question 14 of 50
14. Question
Option List
A. 20
B. 5
C. 40
D. 1
E. 80
F. 98
G. 49
H. 100
I. 82
J. 118
K. 5000
L. 4500
M. 500
N. 400Lead in:
A test for the presence of cancer has an 80% true positive rate and a 2% false positive rate.
13. Of 25 patients with cancer, how many can be expected to have a negative result?
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Question 14 of 50
14. Question
14. Of 50 patients known not to have cancer, how many will have a negative result?
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Question 14 of 50
14. Question
Option List
A. Lecture
B. Reading
C. Audio visual
D. Demonstration
E. Discussion group
F. Practice by doing
G. Teach others/ImitateLead in:
The above are different learning methods. Lecture is delivering information. Reading is self regulated activity. Audio visual is looking at a video of a particular concept explanation with flow chart and animations. Demonstration is showing of how it is done by a teacher. Discussion groups are people who try to solve a problem by themselves in a series of sessions. Practice by doing is repeating the skills oneself. Teaching others is to transfer your knowledge and skill to others and making them learns.
15. Which of the learning method has least retention rate has the least average retention rate?
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Question 7 of 50
7. Question
16. Which of the learning method has maximum retention rate?
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Question 7 of 50
7. Question
Option List
A. Brainstorming
B. The Delphi technique
C. Direct observation of procedural Skills
D. Lectures
E. The 1-minute preceptor
F. Peer coaching
G. Problem-based learning
H. Schema activation
I. Schema refinement
J. Simplified procedural hierarchy
K. Complex procedural hierarchy
L. Snowballing
M. Self directed learning17. A consultant asks a trainee to assist in the operation of total abdominal hysterectomy. After several such operations, during which the educational experience of the trainee consists of observing surgical techniques, there is a rapport between the consultant and the trainee. The consultant then asks the trainee to describe the operation in order to ascertain that they have grasped the steps, techniques and use of instruments that are vital to a safely conducted operation. The consultant then assists the trainee in the procedure. After several operations with ongoing assessment, evaluation and feedback, the consultant and trainee are in a position to judge progress. The safety of patients is of paramount consideration. The trainee is capable of carrying out uncomplicated abdominal hysterectomy independently; consultant assigns the task to trainee to carry out the operation while assisted by another trainee. The consultant would be immediately available. What is the above technique?
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Question 13 of 50
13. Question
18. In the task of teaching ethics to a group of 12 embryologists for 2 hours. The teacher is unsure of their current understanding of the subject. He starts by getting the students, in groups provide them bit of information and asks them, to discuss the terms of the Abortion Act 1967 with each other. Later this pair would discuss among other pair. And the group size increases to a certain limit, and then he bases further teaching on the knowledge displayed by the students.
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Question 13 of 50
13. Question
19. A teacher has been asked to instruct junior trainees on how to carry out diagnostic laparoscopy. The teacher initially shows the trainees how to assemble the laparoscopic equipment. No element of assessment and feedback was present. What is the above technique?
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Question 13 of 50
13. Question
20. A teacher uses a tutorial on the anatomy, physiology and endocrinology appropriate to amenorrhea followed by a series of clinical cases including post chemotherapy amenorrhea, Turner syndrome, hyperprolactinaemia and complete androgen insensitivity syndrome. Where the students are asked to recall their learning from tutorials and apply to solve clinical problems. What is the above technique?
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Question 13 of 50
13. Question
21. A consultant wants to teach examination of breast to a group of trainees. He is unsure of their present anatomy knowledge and wants to help them recall and which technique he would use?
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Question 13 of 50
13. Question
22. A trainee is asked to examine suspected ectopic pregnant women. After he does, the consultant asks the diagnosis, and the corroborative evidence for the same. He explains the general rules of ectopic and corrects his mistakes while giving encouragement for his correctly done steps. What is this technique?
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Question 13 of 50
13. Question
23. Several rounds of questionnaire were sent to panel of experts regarding guidelines for treatment of HIV positive pregnant women. After each round the expert opinion was anonymously summarized and the reason for their opinion and judgment was also given. After every round the expert were given an option of revising their opinion till an expert guideline was reached. What is this technique?
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Question 13 of 50
13. Question
24. A teacher observes an intern carrying out a task of inserting urinary catheter. He also records the steps and makes judgment. He then informs the learner of the opinion that has been formed and to demonstrate how the procedure should have been done. He informs the learner of the opinion that has been formed and to demonstrate how the procedure should have been done. What is this technique?
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Question 13 of 50
13. Question
Option List
A. Unpaired t test
B. Paired t test
C. Mann whitney U test
D. Wilcoxan sign rank test
E. One way ANOVA
F. Kruskal Wallis test
G. Chi square test
H. Fischer’s exact test
I. Pearson’s correlation test
J. Spearman correlation test
K. Simple linear regression
L. Multiple regression
M. Percentage differenceLead in
Study was conducted to assess if BMI was higher in 200 women with GDM compared to those without. BMI and FPG were normally distributed. They estimated height, weight, Fasting plasma glucose (FPG), HbA1c, Insulin level. They also noted down family history of DM, previous history of GDM and Insulin resistance by HOMA IR.
25. Which test is appropriate for establishing that BMI was in fact higher in women with GDM in the above study?
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Question 13 of 50
13. Question
26. Which test is appropriate to find the strength of association between FPG and BMI in the above study?
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13. Question
27. Which study is appropriate to find the strength of association between HOMA IR and family history of GDM?
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Question 13 of 50
13. Question
28. Which test is appropriate to quantify the strength of association between HbA1C and BMI in the above study?
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Question 13 of 50
13. Question
29. Which test is appropriate to quantify the strength of association between HbA1C and BMI, HOMA IR in the above study?
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Question 13 of 50
13. Question
Option List
A. Box plot
B. Histogram
C. Forest plot
D. Scale for statistic being displayed (SEM
E. Line of no effect
F. Confidence interval of pooled over all estimate
G. Pooled over all estimate
H. CI of individual study
I. Estimate of individual study
J. Weight of an individual study
K. Histogram
L. Nomogram
M. Log scale
N. Exponential scaleLead in:
Following are the graphical representation result of a meta analysis results.
30. What type of graph is this?
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Question 14 of 50
14. Question
31. Y axis represents?
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14. Question
32. X axis represents?
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33. Square box position represents?
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14. Question
34. Square box size represents?
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14. Question
35. Horizontal line across square box represents?
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36. Diamond mid point represents?
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14. Question
37. Diamond end points represents?
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Question 14 of 50
14. Question
Option List
A. One sample t test
B. Multiple regression
C. Pearson correlation test
D. ANOVA
E. Chi squared test
F. Two sample unpaired t test
G. Wilcoxon sign rank test
H. Spearman correlation test
I. Mann Whitney U test
J. Mean difference
K. Percentage difference
L. Proportion
M. Coefficient of variation
N. Inter quartile rangeLead in:
A study was done to assess delivery time in forceps, ventouse and caeserian delivery in diabetic mothers. HbA1C, Birth weight, age, parity, and smoking were also recorded. Which inferential test you would select for the following
38. To compare the weight loss in pregnant women before and after attending the healthy eating program (normally distributed).
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Question 14 of 50
14. Question
39. To determine whether forceps delivery increases chances of having pelvic floor surgery later in life.
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14. Question
40. To determine whether age, parity, smoking affects the birth weight
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14. Question
41. To assess whether HbA1c level is related to the birth weight in diabetic mothers
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14. Question
42. To compare the decision-delivery time interval in second stage for forceps, ventouse and caesarean section
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14. Question
43. To compare the mean time of delivery between ventouse and forceps delivery (normally distributed).
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14. Question
44. To compare the weight loss in pregnant women before and after attending the healthy eating program (Not normally distributed).
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14. Question
45. To assess whether HbA1c level is related to the birth weight divided into categories as LBW and NBW and High BW in diabetic mothers
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14. Question
46. To compare the time of delivery between ventouse and forceps delivery (not normally distributed).
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Question 14 of 50
14. Question
Option List
A. 102:150
B. 102:189
C. 63:150
D. 87:150
E. 63:111
F. 150:102
G. 87:63
H. 63:102
I. 189:102
J. 100:65
K. 66:99
L. 95:66
M. 70:66Lead in:
The Collaborative Depression study examined several factors impacting the detection and treatment of depression. One primary focus was to develop a biochemical test for diagnosing depression. For this research, a subpopulation of 300 persons was selected and subjected to the dexamethasone suppression test (DST). The results of the study are as follows:
Depression + Depression – DST + 102 87 DST -ve 48 63 47. Which of these ratios measures specificity?
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Question 13 of 50
13. Question
48. Which of these ratios measures positive predictive value?
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13. Question
49. Which of these ratios measures sensitivity?
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13. Question
50. Which of these ratio measures negative predictive value
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