Introduction To Research - Test 2

10 Questions | Total Attempts: 626

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Research Quizzes & Trivia

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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