Multiple Choice
Sometimes it is not possible to separate subjects from experimental and control groups and the result is that they may discuss the research.What is the threat that this situation poses?
A) causal time order
B) experimental mortality
C) diffusion or imitation of treatments
D) statistical regression
Correct Answer:
Verified
Correct Answer:
Verified
Q3: Experimentation is best suited for hypothesis testing
Q4: In case-oriented research a large number of
Q5: In the case where the experimental groups
Q6: Shortening the time between pretest and posttest
Q7: When using a nonequivalent-groups design the researcher
Q9: What technique can be used to help
Q10: The defining feature of an experiment lies
Q11: The threat of history refers to:<br>A) some
Q12: In general,testing refers to changes in how
Q13: With respect to internal validity issues,testing refers