Theoretical Perspectives of Language Development

1. Behaviorist

1.1. Theorist: B.F. Skinner

1.2. Nurture

1.3. Focus is on Semantic, Syntactic and Morphemic Speech

2. Interactionist

2.1. Theorist: Lev Vygotsky

2.2. Nurture

2.3. Focus is on Pragmatic Speech

3. Nativist

3.1. Theorist: Noam Chomsky

3.1.1. Language Acquisition Device

3.2. Nature

3.3. Focus is on Syntactic Speech

4. Cognitive Developmentalist

4.1. Theorist: Jean Piaget

4.1.1. Object Permanence

4.1.2. Preoperational Stage

4.2. Nature

4.3. Focus is on Semantic and Morphemic Speech