Which of the following is a threat to internal validity?
a. Differential selection of participants
b. Selection-treatment interaction
c. Posttest sensitization
d. Multiple-treatment interference
a
Education
You might also like to view...
Teachers cannot influence social competence of their students
a. true b. false
Education
Answer the following statement(s) true (T) or false (F)
The mode is always the middle score in a distribution.
Education
Describe the who, what, where, when, how and why method of documentation
What will be an ideal response?
Education
The "boy problem" is the term used to describe the concern that boys tend to dominate the classroom and don't give girls a chance to participate.
Answer the following statement true (T) or false (F)
Education