In the Roll et al. study, which was the main piece of research in the article Yoking Smoking about operant

The longest wavelengths we can see are experienced as __________ colors

a) red b) blue-violet c) green d) yellow

Devin is a 7-year-old boy. His religious beliefs are likely to be

A) concrete. B) based on his own internal sense of religion. C) abstract. D) integrated with his morals.