| A | B |
| Adducted | Referring to movement of the extremities toward the center of the body. |
| Initiative | Erikson's task for the preschool child demonstrated by pretend, exploration, and trying on of new roles. |
| Conscience | A person's internal system of values, similar to the superego. |
| Cooperative/Associative Play | A play style typical of preschool children in which they begin to take turns and share in a cooperative manner. |
| Enuresis | Bedwetting |
| Preschool period | refers to ages three to six years of age |
| Four year olds | Able to walk on their tiptoes |
| Five year olds | Able to jump rope |