For people to decide about participating in psychological research, they must be given full knowledge of the nature of the study and their rights. This principle is called:

Which correlation coefficient represents the weakest relationship?

College students who drink so much that it interferes with their lives, health, and academic careers are often not diagnosed as engaging in abnormal behavior because:

Not all participants are the same. Researchers use _____ to reduce the possibility that preexisting differences between groups are responsible for observed differences after experimental manipulation.

David Rosenhan sent pseudopatients to a mental hospital, where they pretended to be disturbed. The results of this study led him to conclude that _____ greatly affects mental illness.

44. Unemployment that occurs because job seekers and employers need time to find each other  

The purchase of new plants, new equipment, new buildings, and new residences, plus net additions to inventories

Those 16 years of age and older who are either working or looking for work

Fogel was also responsible for bringing the Body Mass Index (BMI) to the forefront of economic theories of population.  Fogel found that the better people ate, all of the following occurred  EXCEPT:   

Calculating GDP by adding up spending on all final goods and services produced in the nation during a year