2. e) A discipline that is referred to often, as providing borrowing a theoretical base for CALL work is Psychology. f) Skinner thinks that learning can be broken up into a linear sequence of steps. g) The view that research on the language acquisition process should direct CALL research and development is evident in the writings of a number of authors. h) The concerns of cognitive psychologists who investigate language focus on how knowledge is represented in language use and how meanings are communicated and understood . i) A particular interest in human computer interaction , reflecting the shift in focus from computer to user is beginning to emerge in CALL.