Posted: February 26th, 2023

Empirical Reasoning

Empirical Reasoning

• Textbook: Chapter 14
• Lesson 1, 2
• Myopia and Ambient Lighting at NightLinks to an external site.
• Myopia and Ambient Night-Time LightingLinks to an external site.
• What Are Clinical Trials and Studies?Links to an external site.
• Minimum of 1 scholarly source (in addition to the textbook and noted readings)

I n t r o d u c t i o n

As the text points out, causal reasoning is used in clinical studies. As a professional in
the health field, you will undoubtedly be referring to cause/effect studies for the rest of
your professional life. In this discussion, you are asked to expand and deepen your
understanding of clinical studies.

In 1999, a study on the causes of myopia appeared in the prestigious
journal Nature (Quinn). The study received wide-spread publicity in leading
newspapers, such as the New York Times, and on television outlets, such as CBS and
CNN. Within a year, another article in Nature followed up the 1999 study (Zadnik et al.,
2000). The studies had dramatically different findings.

I n i t i a l P o s t I n s t r u c t i o n s

Using what you have learned from the text, as well as any other sources you may find
useful (including the website in the Required Resources), analyze and evaluate the
methodology of both studies and how methodology affected the differences in how the
studies were reported.

Reportage of both studies can be found with an Internet search using all of the following
terms: .

W r i t i n g R e q u i r e m e n t s

• Minimum of 3 posts (1 initial & 2 follow-up)
• Minimum of 2 sources cited (assigned readings/online lessons and an outside

• APA format for in-text citations and list of references
• 1 page

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