Researchers went door to door conducting structured diagnostic interviews to determine how common particular psychiatric diagnoses were. Which type of research was this?

A reinforcer that is reinforcing in and of itself is called a ______ reinforcer

a. direct c. primary b. delayed d. secondary

The supplementary motor area and the premotor cortex are in the

A) frontal lobe. B) temporal lobe. C) parietal lobe. D) occipital lobe. E) limbic lobe.