Bronfenbrenner
Source: This question is taken from the Pedagogy
Psychology
Post conventional
All of these
Preoperational stage
Exosystem
Three
Stern
Providing consistent emotional support
Industry vs Inferiority
Concrete operational stage
Sigmund Freud
Pre-conventional
Conventional
Both A&B
Two
generalization
Education
1840
Subject Centered
Sensorimotor stage
All of the above
Mesosystem
1923
Collaborative
Pre-operational Stage