This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: When there is a significant time lapse between pretest and posttest measures, the confounding ... (Read 98 times)

serike

  • Hero Member
  • *****
  • Posts: 542
on: Aug 4, 2018
When there is a significant time lapse between pretest and posttest measures, the confounding variable most likely to affect results would be
 
  A) history.
  B) regression to the mean.
  C) instrumentation.
  D) selection.

Question 2

Threats to internal validity due to ________ are greatest when a long time has passed between pretest and posttest measurements.
 
  A) regression to the mean
  B) history
  C) effects of testing
  D) scoring errors
 
  Fill in the blank with the correct answer.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

xoxo123

  • Sr. Member
  • ****
  • Posts: 335
Reply #1 on: Aug 4, 2018
Answer to Question 1

Answer: A

Answer to Question 2

Answer: B


serike

  • Member
  • Posts: 542
Reply 2 on: Aug 4, 2018
Gracias!

xiaomengxian

  • Member
  • Posts: 311
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.

Did you know?

In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).

Did you know?

Approximately one in four people diagnosed with diabetes will develop foot problems. Of these, about one-third will require lower extremity amputation.

Did you know?

Certain rare plants containing cyanide include apricot pits and a type of potato called cassava. Fortunately, only chronic or massive ingestion of any of these plants can lead to serious poisoning.

Did you know?

Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.

Nerves can transmit many signals at the same time Nerves can transmit many signals at the same time
Evaluative measures Evaluative measures
The principle of faunal succession uses animal fossils to tell relative time. The principle of faunal succession uses animal fossils to tell relative time.
With fewer men than women in college, is it time to consider affirmative action for men? With fewer men than women in college, is it time to consider affirmative action for men?
Magnitude of Geologic Time Magnitude of Geologic Time
Time spent on, paid work and housework, by living arrangements of Canadian Time spent on, paid work and housework, by living arrangements of Canadian
Video: Introduction to Autism

For a complete list of videos, visit our video library