The most respected jobs of 2013 based on ratings of the honesty and ethical standards of occupations include ____

Albert is in a psychiatric institution. He receives a poker chip every time he shaves in the morning, dresses appropriately and has an appropriate conversation with one of the staff. He can exchange the chips for candy, gum and various privileges

What type of treatment is Albert receiving? a) interpersonal therapy b) participant modeling c) systematic desensitization d) token economy

In order to develop chicken pox, one must be exposed to the virus that causes chicken pox. Note, however, that not everyone who is exposed to the virus is affected. In other words, the virus is a

A) risk factor. B) contributory cause. C) sufficient cause. D) necessary cause.