When a change in the dependent variable could be due to internal changes within the participant that occurred over time, __________ is a threat to internal validity

a. history
b. maturation
c. regression to the mean
d. selection

B

Political Science

You might also like to view...

While gridiron cities are clearly organized, radiocentric cities were not designed with a specific purpose in mind

Indicate whether the statement is true or false.

Political Science

All of the following are reasons that government in the United States is becoming more complex every day EXCEPT ______.

A. institutions are more complex and numerous B. the mandate of maximum feasible participation C. subject matter is more complex and technical D. increasing requirements of accountability

Political Science