Behaviorists suggest that the child who is raised in an environment where there are many stimulators which develop his or her capacity for appropriate responses will experience greater intellectual development 行动主义者认为如果孩子生活在有许多刺激的环境中，而这种刺激又会提高他采取适当反应的能力，那么，他将体念更好的智力上的进步。
