Comparison 5. Teacher‐rated performance and grades in school.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 At end of treatment	5	642	Std. Mean Difference (IV, Random, 95% CI)	0.15 [‐0.01, 0.31]
2 At longest follow‐up	2	379	Std. Mean Difference (IV, Random, 95% CI)	‐0.01 [‐0.22, 0.20]