# law of effect

> a psychological principle; champions trial and error as root of learning

**Wikidata**: [Q3174035](https://www.wikidata.org/wiki/Q3174035)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Law_of_effect)  
**Source**: https://4ort.xyz/entity/law-of-effect


## References

1. Freebase Data Dumps. 2013