With its emphasis on stimuli and responses, which school of thought helped make psychology a natural science, rather than a branch of philosophy?

The principle of _________________ holds that, when dealing with competing theories, the simplest one should be chosen

FIll in the blank with correct word.

The ________________ model of short-term memory proposes an active system of memory stores and a central executive, which together allow us to manage complex tasks

FIll in the blank with correct word.