Research has supported the idea that obesity is a matter of will power or lack thereof

Dr. Andrew Wakefield has speculated that the measles/mumps/rubella vaccination may be responsible for 12 cases of autism. A Danish study of half a million children found

a. weak evidence to support this theory. b. strong evidence to support this theory. c. no evidence to support this theory. d. evidence that rubella itself is part of the cause of autism.

A sample whose characteristics are the same as those of the population it is intended to reflect is called a ____ sample.

a) representative b) characteristic c) typical d) prototypical