Children from poor homes adopted into high-status families usually show:

1. Studies on adopted children test the role of environment. 2. Children from disadvantaged homes adopted into families with higher socioeconomic status show a large increase in their intelligence scores. 3. This points to the role of the environment. _Source: NCERT Class XII Psychology, Ch 1 Variations in Psychological Attributes, "Intelligence: Interplay of Nature and Nurture", p. 9_