title: Articulation development in children aged two to four years.
abstract: The articulation skills of 147 children aged 24 to 48 months were tested and the results compared with earlier classical studies and distinctive feature development. The results of the present study indicate consistently earlier age levels for the correct sound and feature usage than the previous studies, though the general sequences of development are strikingly similar in all studies.
mesh_terms: D002675:Child, Preschool; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D007223:Infant; D007804:Language Development; D008297:Male; D010700:Phonetics; D013060:Speech