Which of the following are considered the most effective types of reward?
a. food and praise
b. light and sound
c. rest and isolation
d. noise and water

What are some similarities between islam and judaism?

What would happen if airlines and baseball stadiums priced all seats the same instead of using variable pricing

The primary purpose of a certificate of confidentiality is to: allow law enforcement to investigate abuse cases.protect researchers from disclosing conflicts of interest.prevent subjects from knowing the purpose of a study.protect identifiable research information from compelled disclosure.