“…However, beyond merely increasing the amount of parent-child play, parents were taught four teaching strategies, including modeling, prompting, add-ons, and reinforcement, which all have empirical support as e ective ways to increase play (DiCarlo & Reid, 2004;Guillaume, 1926Guillaume, /1971Kelly-Vance & Ryalls, 2008;Piaget, 1962;Singer, 1973;Smilansky, 1968, Vygotsky, 1978. Therefore, not only were the parents engaging in increased durations of parent-child play, but it could also be argued that the parent-child play interactions were more purposeful and allowed for opportunities for the child to practice new play behaviors.…”