Adolescent 1 Child Child Behavior 1 Child Language 1 Child, Preschool 1 Female 1 Humans 1 Imitative Behavior 1 Interpersonal Relations 1 Linear Models 1 Male 1 Social Behavior 1 Speech 1 Speech Production Measurement 1 Time Factors 1 adolescent 1 adult 1 article 1 child 1 child behavior 1 controlled study 1 female 1 human 1 human experiment 1 human relation 1 imitation 1 language development 1 male 1 physiology 1 preschool child 1