33
/fr/
AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
November 1, 2025
4784307
446602
2
Public Timelines
FAQ Obtenir le Premium

1 janv. 2010 - Dunfield and Kuhlmeier

Description:

This study showed that we often help those who have helped us, a reciprocity norm. The study/experiment was done with infants and showed that infants were more helpful to an adult after the adult had given them a toy first.

Ajouté au bande de temps:

Date:

1 janv. 2010
Maintenaint
~ Il y a 15 ans