Multiple Choice
One threat to the internal validity of research that affects both true experiments and quasi-experiments is
A) selection threats.
B) additive effects with selection.
C) experimenter expectancy effects.
D) all of these
Correct Answer:

Verified
Correct Answer:
Verified
Related Questions
Q49: Among the following research designs,which allows researchers
Q50: Program evaluation is a hybrid discipline whose
Q51: One of the main ways that true
Q52: In clinical trials involving tests of new
Q53: A researcher was asked to evaluate the
Q55: When individuals in one group of a
Q56: Which of the following is not one
Q57: The relationship between basic research and applied
Q58: The main problem associated with subject attrition
Q59: At a large university,a group of education