Biostatistics and Epidemiology Question Set 2

by Lecturio USMLE

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The lecture Biostatistics and Epidemiology Question Set 2 by Lecturio USMLE is from the course Biostatistics and Epidemiology – Board-Style Questions.

Included Quiz Questions

1. If the null hypothesis is true, there is a 10% probability to get this difference of 0.4 gm/dl or higher, due to chance.
2. If the null hypothesis is not true, 10% or higher , of the students still do not show any association between haemoglobin value and weight.
3. If the null hypothesis is true, there is a 10% probability to get this difference of 0.4 gm/dl due to chance.
4. If the null hypothesis is true, there is still a 10% probability not to get this difference of 0.4 gm/dl or higher, due to chance.
5. If the null hypothesis is not true, there is still a 10% probability not to get this difference of 0.4 gm/dl or higher, due to chance.
1. Odds of smoking, in bladder cancer patients, were 2.7 times to that of those without bladder cancer.
2. The smokers had 2.7 times increased risk of developing bladder cancer when compared to those who do not smoke.
3. Bladder cancer patients had 2.7 times increased risk of smoking when compared to those without bladder cancer.
4. Odds of smoking in bladder cancer patients were 2.7 times higher when compared to those who do not smoke.
5. Odds of smoking was 2.7 times higher in those patients who had a risk of developing bladder cancer in future.
1. The association is not statistically significant and low education is not a risk factor.
2. The association is not statistically significant but low education is a risk factor.
3. The association is statistically significant but low education is not a risk factor.
4. The association is statistically significant and low education is a risk factor.
5. Cannot comment as the p value is not given.
1. Total sample size of the study
2. The mean height of the male students in that college
3. Total number of male students in that college who did not take part in the study
4. A sampling frame of all the male students in the college
5. Given data is adequate and no more data is needed.
1. 129 mg/dl
2. 127 mg/dl
3. 128 mg/dl
4. 130 mg/dl
5. 132 mg/dl
1. Phase 3
2. Phase 2
3. Phase 1
4. Phase 0
5. Phase 4
1. Community Trial
2. Crossover Study
3. Explanatory Study
4. Case-Control Trial
5. Cross-sectional Study
1. Carryover effect
2. Increasing selection bias
3. Hawthorne effect
4. Increasing confounding bias
5. Decreasing power

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