Table 4.

Magnitude thresholds for Cohen’s d and Pearson’s r.

Cohen’s d	Effect	Pearson’s r	Relationship
0–0.2	Trivial	0.0–0.1	Trivial
0.2–0.6	Small	0.1–0.3	Small
0.6–1.2	Moderate	0.3–0.5	Moderate
1.2–2.0	Large	0.5–0.7	Large
>2.0	Very Large	0.7–0.9	Very Large
--	-	1.0	Perfect