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Paper Critique: Wilcoxon Matched-Ranks Analysis

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BIO360 Paper Critique

Objective

The objective of this study was to see if there was an increase in recovery rate of patients recovering from surgery when they are subjected to views of nature. It was hypothesized that individuals that were subjected to natural scenery would have a reduction in stress leading to a faster recovery. This topic is interesting because it allows one to see if different stimuli induce a pleasant reaction in individuals. If the stimulus is successful in making patients feel more relaxed and at ease then patients recovering from surgical operations might be assigned to a room with view of natural scenery. Moreover, it might encourage the building of hospitals near scenery with natural elements. Study Design The …show more content…
The predictor variable was the type of view the patient had and this is a binary, categorical variable. The response variables were the length of hospitalization, which is a quantitative and continuous variable (days) and the nurse’s notes (whether it was positive or negative) and this was a binary and categorical variable.

Ho: There is no difference in the length of hospitalization and the nurses’ notes between patients with a view of the window or the wall.

Ha: There is a difference in the length of hospitalization and the nurses’ notes between patients with a view of the window or the wall

The second test performed was a multi-variant two-sample Hotelling test. The predictor variable was what type of view the patient had and is a binary, categorical variable. The response variables were the strength of the antianxiety drugs (weak, moderate, strong) and this is a categorical, ordinal variable and the number of doses of analgesics, which is a quantitative and discrete variable.

Ho: There is no difference in the strength of antianxiety drugs taken and the number of doses of analgesics between patients with a view of the window or the wall

Ha: There is a difference in the strength of antianxiety drugs taken and the number of doses of analgesics between patients with a view of the window or the …show more content…
I had to draw upon my knowledge and assess if the test they used was appropriate and if the results were of significance. Furthermore, I had to assess if there was any biological relevance between the two variables of interest. In terms of statistics, I learned how important it is apply an appropriate test based on the assumptions and the data collected. Moreover, it taught me that even thou results obtained might be statistically significant one cannot take that at face value. This taught me that even if I had statistically significant result, it might not translate into being biological relevant. Therefore, I had to take into account multiple factors before assuming that just because one had a statistically significant result, it might not essentially work as such in real life. In the future, I will continue to evaluate and critique statistical studies by taking into account all factors of interest. Therefore, I can avoid making incorrect conclusions based off a single factor (such as just looking at the p-value and its significance). Lastly, this assignment also taught me the importance of statistics and its application to different

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