| A | B |
| Reflex | An automatic body response toa stimulus |
| Motor sequence | Order in which a child is able tp perform new movements. |
| Object permanence | An understanding that objects continue to exist even if a person cannot see them |
| Deferred imitation | Watching another person's behavior, then acting out that behavior |
| Telegraphic speech | Two-words phrase used by toddlers when they first learn to combine words |
| Temperament | Qualityy and intensity of children's emotional reactions to their environment, such as passivity, irritability, and activity pattern |
| Attachment | The strong emotional connection that develops between people |
| Separation anxiety | A child's difficulty in separating from parents, often occurring between 9 and 18 months of age |