Introduction To Research - Test 2
10 Questions
| Total Attempts: 626
Questions and Answers
- 1.Prevalence is the number of new cases in a population.
- A.
True
- B.
False
- 2.Sensitivity is the ability of a test to correctly identify those who have the disease, while specificity is its ability to identify those who don't have the disease.
- A.
True
- B.
False
- 3.The fecal immunochemical test is a screening test for colon cancer. If its specificity was 60% and its sensitivity was 80% and the negative predictive value was 25%. What is the prevalence of colon cancer?
- A.
0.9 (90%)
- B.
0.85 (85%)
- C.
0.8 (80%)
- D.
0.95 (95%)
- 4.HIV antibody conformation test is a screening test for AIDS. Based on the table below, what is the probability of getting a negative test if the person is infected? Test positive Test negative AIDS positive 420 90 AIDS negative 280 210
- A.
9/51
- B.
42/51
- C.
9/49
- D.
21/49
- 5.Verbal fluency test is a screening test used for dementia. Based on the table below, what is probability of getting a negative reult that is really negative? Dementia positive Dementia negative Positive test 640 100 Negative test 160 100
- A.
10/26
- B.
16/26
- C.
64/74
- D.
10/74
- 6.The largest collection of entities for which there is an interest at a particular time is:
- A.
Population
- B.
Sample
- C.
Inference
- D.
Statistic
- 7.Permitting examination of past trends is an advantage of which data collection techniques?
- A.
Using available information
- B.
Observing
- C.
Interviewing
- D.
Adminstering written questionnairs
- 8.Time consuming is a disadvatage of which type of non-probablistic sampling?
- A.
Judgment sampling
- B.
Quota sampling
- C.
Convenience sampling
- D.
2 of the answers are correct
- 9.An advantage of snowball sampling is that it is dependant
- A.
True
- B.
False
- 10.Interviewing is a data collection method that is suitable for illiterate.
- A.
True
- B.
False
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