Franklin Stein

New York University
University of South Dakota · Occupational Therapy

Questions and Answers

  • Franklin Stein added an answer in Statistics:
    Spearman Rank Order Correlation
    Currently I am working on Spearman Rank Order Correlation. If my sample size is 14, p value = 0.003, r value= 0.511. Is it significant correlation? I found some articles said it is but others said it is not significant correlation. I have noted that the correlation depends on the sample size, if sample size is small, the r value should be greater. Am I correct? Can anyone clarify for me?
    Franklin Stein · University of South Dakota
    When interpreting an r value it is important for the researcher to understand that the r value simply describes the relationship between two variables. An r value of .51 demonstrates a moderate degree of relationship between two variables. Using a statistical table is only one way to interpret results. The researcher must look at the context of the results. If you are dealing with medical variables an r of .5 only accounts for about 50% of the relationship. In other words there are other factors in the relationship that may account for error. Take for example the relationship between smoking and lung cancer. Is there a strong correlation between these two variables? Can we predict with accuracy that smokers will develop lung cancer? Are there other variables that confound the relationship? Correlation as we know does not infer cause and effect. However correlation statistics is very useful in generating experimental designs.
  • Franklin Stein asked a question in Stress:
    I have been interested in stress management for the last 25 years. Stress is a significant factor along with lack of exercise and poor diet in the ons...
    I have been interested in stress management for the last 25 years. Stress is a significant factor along with lack of exercise and poor diet in the onset of symptoms in individuals who are vulnerable to specific medical conditions or diseases. In other words I have found that stress is a trigger to psychological problems such as depression and physical disabilities such as arthritis. I have found in my research that stress management activities such as meditation, exercise and music are helpful in alleviating stress and reducing symptoms.

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