According to Research by Barr, Rovee-Collier, and Campanella (2005), Six-Month-Olds

According to research by Barr, Rovee-Collier, and Campanella (2005) , six-month-olds evidenced deferred imitation over a 10-week period after they:

A) Were offered a reward for correct responses
B) Had seen the target actions modeled not once, but twice
C) Had been given the opportunity to engage in repeated retrieval of the action
D) Saw a peer act out the behaviour
E) Witnessed two adults modeling the behavior