Multiple Choice
If one selects the poorest readers from an elementary school class using a standard reading test and then places them in an ineffective reading program, retesting will likely show an improvement in scores due to
A) attrition.
B) regression to the mean.
C) regression to the mean and maturation.
D) instrumentation and history.
Correct Answer:
Verified
Correct Answer:
Verified
Q7: An uncontrolled threat to internal validity could<br>A)
Q8: Work or school absenteeism is a particularly
Q9: Comparison groups are best chosen in order
Q10: To show that a program had an
Q11: Using two time series with interventions delivered
Q13: Smoothing a graph of observations made over
Q14: The regression discontinuity design can be analyzed
Q15: In the graph below, all preintervention observations
Q16: A time series evaluation design leads to<br>A)
Q17: Suppose that a hospital made an effort