Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Percent of Infants who Successfully Completed the Target Actions as a Function of Age and Phase of Testing
| Phase | 13-Month-Olds | 16-Month-Olds | 20-Month-Olds | |||
|---|---|---|---|---|---|---|
|
| ||||||
| Event | Location | Event | Location | Event | Location | |
| Baseline | 0% | 0% | 0% | 0% | 0% | 0% |
| Immediate imitation | 60% | 100% | 88% | 100% | 90% | 100% |
| Delayed recall | ||||||
| One month | 65% | 22% | 94% | 61% | 88% | 88% |
| Three months | 31% | 11% | 56% | 29% | 71% | 67% |
| Six months | 29% | 6% | 33% | 6% | 61% | 33% |
| Nine months | 33% | 6% | 20% | 0% | 50% | 22% |
| Twelve months | 33% | 0% | 0% | 6% | 44% | 17% |
