Biological rhythms are typically in tune with ________ such as clock time, temperature, and daylight

Which of the following is the best example of a nonnormative developmental influence?

a. having a baby b. getting carjacked c. being in a recession d. going bald

If Billy was praised every 4th time he collected rocks without throwing them, his behavior would be on which schedule of reinforcement?

a. variable ratio b. fixed interval c. fixed ratio d. variable interval