Humans 15 human 15 child 11 male 11 Child 10 Male 10 female 10 Female 9 Adolescent 6 History of medicine 6 adolescent 6 Apraxia 5 Article 5 Child, Preschool 5 Language Development Disorders 5 Speech Disorders 5 classification 5 developmental language disorder 5 dysarthria 5 preschool child 5 speech disorder 5 speech motor delay 5 Cognition 4 History 4 United States 4 cognition 4 psychology 4 Adult 3 TJ Mechanical engineering and machinery 3 Wechsler Abbreviated Scale of Intelligence 3