Spearman’s Rho Flashcards

1
Q

What are three assumptions of Pearson’s r?

A
  1. Interval or ratio data
2. X & Y normally distributed
3. Linear relationship
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2
Q

Why use spearman’s rho? 3

A
  1. A variable is measured using ordinal scale
OR a variable must be recoded to ordinal scale because: 
2. Extreme scores 
3. Monotonic relationship
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3
Q

What is a monotonic relationship?

A

Variables change in the same direction but not always at the same rate. (Eg: ceiling effect)

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4
Q

When can spearman’s rho be evaluated for significance?

A

When N>30.

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