Question: Hi, using the formula for effect size r = s q r t ( t 2 / ( t 2 + d f ) )

Hi, using the formula for effect size r=sqrt(t2/(t2+df)), how can I interpret an effect size of 0.269?

These are from a table in a textbook

r = 0.1 - Small effect

r = 0.3 - Medium effect

r = 0.5 - Large effect.

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