In defense of a developmental dogma: children acquire propositional attitude folk psychology around age 4.
https://www.psych.uni-goettingen.de/de/development/publications_department/articlereference-2017-03-12-0111218230
https://www.psych.uni-goettingen.de/@@site-logo/university-of-goettingen-logo.svg
and H Rakoczy
In defense of a developmental dogma: children acquire propositional attitude folk psychology around age 4.
Synthese