Which of the following disease outbreaks occurred between 1346 and 1352 and claimed up to one-third of the population of Europe:

The number of existing cases of a disease or health condition is known as the incidence.  

Those members of the population who are capable of developing a disease or condition are known as:

  Which of the following is a difficulty in using operant conditioning:  

According to ecopsychologists, because there is synergy between human health and planetary health

What has to happen for a conditioned stimulus to produce the conditioned response?

Feinberg found (in the Apocalypse Soon? article) that

According to the psychoanalytic perspective, people overconsume because they

  An example of a negative reinforcer for eating less red meat would be:  

If you want people to buy more sustainable products on a regular basis, which of the following would be more effective from a behavioral perspective: