Multiple Choice
Repeatedly dividing the sample on the basis of demographic descriptors to look for differences in the means of outcome variables for different subgroups of the sample
A) raises the chances of a Type I error.
B) raises the chances of hindsight error.
C) lowers the internal validity of a study.
D) increases the level of external validity.
Correct Answer:
Verified
Correct Answer:
Verified
Q6: The question of how much improvement in
Q7: The threat to internal validity called "history"
Q8: The threat to internal validity called "testing"<br>A)
Q9: The threat to internal validity called "instrumentation"
Q10: Explain which threats to internal validity need
Q12: Pretest-posttest designs permit the evaluator to learn
Q13: The fact that people who choose to,
Q14: Internal validity refers to whether<br>A) a statistically
Q15: Consider a program to assist new parents
Q16: Retrospective pretests were developed to be sensitive