Health Information Analysis And Presentation

56 Questions | Total Attempts: 43

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Health Information Analysis And Presentation

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Questions and Answers
  • 1. 
     This term describes the degree of conformity of a measured or calculated quantity to its actual (true) value.
    • A. 

      Variance

    • B. 

      Accuracy

    • C. 

      Precision

    • D. 

      Outlier

  • 2. 
    Which of the following is TRUE about Standard Deviation? 
    • A. 

      The more spread apart the data, the higher the deviation.

    • B. 

      A value much greater or much less than the others in a data set

    • C. 

      The more spread apart the data, the lower the deviation.

    • D. 

      The narrower spread apart the data, the higher the deviation.

  • 3. 
    Which one of the following is a calculation of practical significance for two measurement variables.
    • A. 

      Cohen's difference

    • B. 

      % difference between

    • C. 

      Pearson's r

    • D. 

      Raw difference

  • 4. 
    A situation in which the values of variables occur at irregular frequencies and the mean, median and mode occur at different points.
    • A. 

      Right Skewed Distribution

    • B. 

      Symmetrical Distribution

    • C. 

      Left Skewed Distribution

    • D. 

      Asymmetrical Distribution

  • 5. 
    How does outliers effect range in a set of data?
    • A. 

      Best statistic equipped to deal with outliers, in that they are, mostly, unaffected by it.

    • B. 

      If the outlier is high or low, it causes the mean to be high or low and makes it unreliable.

    • C. 

      Greatly affected by outliers, as it can change the actual calculations by extreme numbers, up or down.

    • D. 

      None of the Above

  • 6. 
    An outbreak or the spread of disease that is observed at higher than normal frequency is known as a/an: 
    • A. 

      Endemic

    • B. 

      Epidemic

    • C. 

      Pandemic

    • D. 

      None of the above

  • 7. 
    Epidemiology plays an integral role in: 
    • A. 

      Disease prevention

    • B. 

      Health promotion

    • C. 

      Both a and b

    • D. 

      None of the above

  • 8. 
    The scientific method of research: 
    • A. 

      Is a step-by-step approach

    • B. 

      Reduces bias in studies

    • C. 

      Increases the validity and reliability of the study

    • D. 

      All of the above

  • 9. 
    Bias is: 
    • A. 

      The conscious and unconscious error

    • B. 

      That all people and ideas are fairly distributed

    • C. 

      The random selection of population in a study

    • D. 

      None of the above

  • 10. 
    The ability to consistently measure what we think we are measuring is: 
    • A. 

      Validity

    • B. 

      Reliability

    • C. 

      Internal validity

    • D. 

      External validity

  • 11. 
    Studies designed to be internally valid:
    • A. 

      Show a cause-effect relationship in the sample or population studied.

    • B. 

      Can be generalized to a broader, more general population.

    • C. 

      Produce unbiased inferences or conclusions about a target population.

    • D. 

      All of the above

  • 12. 
    One of the largest publicly available databases of medical literature is: 
    • A. 

      PubMed

    • B. 

      Google scholar

    • C. 

      MeSH

    • D. 

      Proquest

  • 13. 
    Quantitative methods of research:
    • A. 

      Look for associations between interventions and outcomes.

    • B. 

      Involve the measurement and description of variables

    • C. 

      Include variables such as sex, age, height and weight.

    • D. 

      All of the Above

  • 14. 
    Which approach is most commonly used in a study design?
    • A. 

      Qualitative

    • B. 

      Quantitative

    • C. 

      Mixed

    • D. 

      None of the above

  • 15. 
    The two main study design strategies used in research studies are: 
    • A. 

      Correlational and cross sectional studies

    • B. 

      Descriptive and analytic studies

    • C. 

      Cohort and case control studies

    • D. 

      Case reports and case series

  • 16. 
    Which best describes a correlational study?
    • A. 

      It uses data from entire populations to compare disease frequencies between same/different groups during the same or different points in time.

    • B. 

      It cannot be used to test a hypothesis because of a number of limitations.

    • C. 

      It consists of the carefully detailed report by one or more clinicians of the profile of a single patient.

    • D. 

      Both a and b.

  • 17. 
    In a cohort study, the investigator selects a group of exposed individuals and a group of non exposed individuals and:
    • A. 

      Follows both groups prospectively to compare the incidence of disease.

    • B. 

      Follows both groups retrospectively to compare the prevalence of disease.

    • C. 

      Is a part of observational studies which comes under analytical studies.

    • D. 

      Both a and c

  • 18. 
    A retrospective cohort study: 
    • A. 

      Is referred to as a non-concurrent study.

    • B. 

      Can reduce the time required to under take the study.

    • C. 

      Can increase the time required to undertake the study.

    • D. 

      Both a and b.

  • 19. 
    Incidence of disease can be defined as the number of: 
    • A. 

      New cases in a given population over a given time period

    • B. 

      Persons exposed to the risk during the time period

    • C. 

      Existing cases at a single point in time

    • D. 

      Both a and b

  • 20. 
    Comparing the incidence of disease in persons with exposure to the incidence of disease in persons without the exposure is called: 
    • A. 

      Relative risk of disease

    • B. 

      Control

    • C. 

      Cases

    • D. 

      Sampling bias

  • 21. 
    In a study example where looking at the effects of caffeine on newborns' birth weight, caffeine is: 
    • A. 

      The outcome or the dependent variable

    • B. 

      Exposure or independent variable

    • C. 

      Confounding variable

    • D. 

      None of the above

  • 22. 
    The mode for the following data; 2,2,1,5,9,7,5,4,3
    • A. 

      3

    • B. 

      1

    • C. 

      9

    • D. 

      2

  • 23. 
    Used to compare parts to the whole
    • A. 

      Pie graphs

    • B. 

      Scatter plot

    • C. 

      Line graphs

    • D. 

      Bar charts

  • 24. 
    Used to show a relationship or correlation between two variables and how they interact with each other in either a positive ornegative relationship
    • A. 

      Line graphs

    • B. 

      Scatter plot

    • C. 

      Pie graphs

    • D. 

      Bar charts

  • 25. 
    Which of the following is NOT an Elements of data analysis?
    • A. 

      Data preparation

    • B. 

      Data Modeling

    • C. 

      Data exploration

    • D. 

      Data Statistical

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