Sarah is 25 years old. she was born and raised in canada, but moved to san francisco, california, to start a new job. she has not applied for u. s. citizenship. can sarah vote in the u. s.?

Psychologists studying infant memory want to determine at what age babies can remember specific events. an experimenter uses several puppets to demonstrate a series of actions while the infant watches. after a delay, the experimenter records how many of the actions the child imitates when playing with the puppets. what is the dependent variable?