Author Question: Sometimes a sample of research participants consists of several smaller groups that are different ... (Read 49 times)

Beheh · **on:** Jun 20, 2018

Sometimes a sample of research participants consists of several smaller groups that are different from one another in critical ways. A correlation coefficient in this situation would be lower than if the sample consisted of similar people.

This illustrates the problem of
a. restricted range.
b. heterogeneous subgroups.
c. a third variable.
d. directionality.

Question 2

The ethical principles developed by the American Psychological Association contain guidelines for achieving the highest ideals of psychology. These principles are called

a. aspirational goals.
b. ethical standards.
c. enforceable rules.
d. principles of beneficence.