Activity 3.3: Problem of the Week: Article Analysis

Introduction

This week’s POW requires you to do some research. Many journal articles contain some sort of statistical analysis, so if you search by your major or a topic of interest, you should be able to locate something compelling. While reading the article, you will see how statistics are used in your particular field either to support or reject a claim or hypothesis. Studies provide valuable information to keep moving a profession in a positive direction.

Activity Instructions

Find a journal article containing some type of statistical analysis from

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Tiffin University Library

directly related to your educational career path or interest. Read the article, then answer the following questions:

  • Give the citation link of the article.
  • Is the article about a population or a sample? Give evidence to support your answer.
  • Is the article about an observational study or an experimental study? Give evidence to support your answer.
  • What is the sample type used by the researchers in the article? What evidence supports the sample type you selected?
  • What is the level of measurement used in the article? Why did you choose that level of measurement?
  • List 2 different statistics found in the article and explain what they mean in this context, noting the page numbers where the statistics are found.
  • Do you find that the author’s use of statistics presents a compelling case for his/her point of view? Give evidence to support your opinion.
  • Provide a 1 sentence summary of the article in your own words.
  • MAT273 Synthesis of Concepts In Article
    Name: Example
    Citation:
    Knapik, J. J., Bauman, C. L., Jones, B. H., Harris, J. M., & Vaughan, L. (1991). Preseason strength and
    flexibility imbalances associated with athletic injuries in female collegiate athletes. The American journal
    of sports medicine, 19(1), 76-81.
    Choose one:
    sample
    Why did you choose that answer?
    The group had only 180 people, there would be many more in the population of female
    athletes
    Choose one: Observation study
    How do you know it was that type of study?
    There was no control group who received a placebo; the researchers did not manipulate
    the treatment, just observed and reported the injuries and conditions.
    Choose one for sample type:
    stratified
    Why did you choose that sample type?
    The article states that there were 138 female collegiate athletes for comparison. This
    best fits with the definition of stratified since female is the first strata, athlete is a second
    degree of strata, and collegiate athlete further separates the groups.
    MAT273 Synthesis of Concepts In Article
    Name: Example
    Choose one for Level of measurement:
    ratio
    Why did you choose that level of measurement?
    The data was quantitative in nature and could be listed as a fraction or multiple. Also,
    zero would mean the absence of an injury. This is important in the definition of any ratio
    level measurement.
    List 2 statistics in the article and explain what they mean in this context (note page numbers)
    1. x bar = 92. thirteen subjects had 92 degree flexibility in the right knee (p. 78)
    2. σ = 12. The standard deviation in right knee flexibility was 12 degrees. (p. 78)
    Do you find that the author’s use of statistics presents a compelling case for his point of view?
    Yes. The author provides a strong context for the observational study with clear
    descriptions of the measures taken in a clearly defined sample group. There does not
    appear to be any question, research, or participant bias.
    One sentence summary:
    The study demonstrated that specific strength and flexibility imbalances were associated
    in female collegiate athlete injuries.
    MAT273 Synthesis of Concepts in Article
    Name: Example
    Citation:
    Choose one: Population or sample
    Why did you choose that answer?
    Choose one: Observation study or experimental study?
    How do you know it was that type of study?
    Choose one for sample type:
    Census
    systematic
    cluster
    stratified
    convenience random
    Why did you choose that sample type?
    Choose one for Level of measurement:
    Nominal
    ordinal
    interval
    ratio
    Why did you choose that level of measurement?
    List 2 statistics in the article and explain what they mean in this context (note page numbers)
    1.
    ____________________________________________________________________________
    ___
    2.
    ____________________________________________________________________________
    ___
    Do you find that the author’s use of statistics presents a compelling case for his point of view?
    One sentence summary:

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