A Pearson's correlational analysis examines the relationship between variable A, hours of sleep per week, and B, symptom severity, in 43 women with post-polio syndrome
In accessing the table of values, the researcher uses which of the following numbers for degrees of freedom?
a. 2
b. 4
c. 41
d. 43
ANS: C
Every inferential statistic has is own formula for degrees of freedom (numbers of values that are free to vary). The formula for degrees of freedom (df) for a Pearson r is n – 2. Thus, in this case, the df is 43 – 2 = 41.
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