Child development researcher, Lian Tong, analysed the results from a Haley and Stansbury experiment saying, "Parent responsiveness also facilitates cognitive, social, and emotional development and reduces negative emotions in infants." That is, the amount of time that a parent or teacher is willing to spend teaching, listening to, playing with, and exploring with the child the more socially, emotionally, and educationally developed the child will become. Whether that child receives the majority of his or her care at a center or at its house, the biggest factor in deciding what will have the best effect on the child will be those willing to put in the time and effort it takes to properly develop a child's social, physical, and academic skills.