The phenomenon of IQ test scores rising 3 points per decade is referred to as the _____

According to the text, which ethical principle holds that people should participate voluntarily, should be told fully of the nature and possible consequences of the experiment, and should not be offered excessive rewards to participate?

a. privacy b. beneficial treatments c. informed consent d. protection from harm

Jeanine has been studying the personalities of the same group of 50 men and women for more than a decade now. Jeanine is in the process of conducting a(n) __________

a. cross-sectional study b. longitudinal study c. experiment d. field study