These SLA - CP theories mainly attempt to explain apparent differences in language aptitudes of children and adults by distinct learning routes , and clarify these differences by discussing psychological mechanisms .
SLA theories explain learning processes and suggest causal factors for a possible CP for second language acquisition .
These CP     theories mainly attempt to explain apparent differences in language aptitudes of children and adults by distinct learning routes , and clarify these differences by discussing psychological mechanisms .
SLA theories explain learning processes and suggest causal factors for a possible CP for second language acquisition .