applied linguistics
child development
child language
concepts
crying
developmental psychology
educational and child assessment
language and communication
Language development relates to the processes involved in the acquired, or untaught, ability of human beings to understand and produce speech communication. The study of the development of language ability encompasses many fields of inquiry, including linguistics, sociolinguistics, behavioral psychology, and speech and language proficiency. [Source: Encyclopedia of Identity; Language Development]
language development
mental development and functions