Multiple Choice
When the change in the dependent variable could be due to extreme scores moving to the mean on subsequent testing, __________ is a threat to internal validity.
A) history
B) maturation
C) regression to the mean
D) selection
Correct Answer:

Verified
Correct Answer:
Verified
Q10: Extraneous variables are controlled for by the
Q11: Demand characteristics are a threat to internal
Q12: _ variables are not controlled for in
Q13: Threats to internal validity are threats to
Q14: _ variables are variables that influence all
Q16: When a change in the dependent variable
Q17: A _ is an inert substance.<br>A)maturation<br>B)regression to
Q18: Imagine a study where participants were given
Q19: Psychological studies involve the use of many
Q20: Which of the following statements regarding threats