> We found evidence for a moderate, overall transfer effect (g = 0.49, 95% CI [0.37, 0.61]) and identified a strong effect for near transfer (g = 0.75, 95% CI [0.39, 1.11]) and a moderate effect for far transfer (g = 0.47, 95% CI [0.35, 0.59]).

> Positive transfer to situations that required creative thinking, mathematical skills, and metacognition, followed by spatial skills and reasoning existed.