Who am I?

123456789
Across
  1. 3. Children are inherently bad
  2. 6. He argued that studies of children in unfamiliar laboratory environments with other person usually a stranger, were ecologically invalid.
  3. 8. Infant is at blank state waiting to be written by his or her experiences
  4. 9. He gave great ideal of importance of the social environment in person's Psychosocial Development.
Down
  1. 1. The one who made Theory of Cognitive Development
  2. 2. Children innately born good
  3. 4. His theory states that social interaction plays very important role in cognitive development.
  4. 5. The one who made Psychoanalytic Development Theory
  5. 7. The one who made Psychological Development of Human Being