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10 cards from this deck
Results unlikely by chance; suggest genuine effect or difference
Non-parametric test for difference between related data sets
Observed value must be ≤ critical value
Count the less frequent sign
Omit them from the analysis
+1.0 to -1.0
+1.0 (one variable increases, other increases)
-1.0 (one variable increases, other decreases)
0.7 to 1.0 or -0.7 to -1.0
Spearman's: non-parametric; Pearson's: parametric
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