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 109 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
Great answer, keep it coming :)

chjcharjto14

  • Member
  • Posts: 342
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Critical care patients are twice as likely to receive the wrong medication. Of these errors, 20% are life-threatening, and 42% require additional life-sustaining treatments.

Did you know?

Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.

Did you know?

Disorders that may affect pharmacodynamics include genetic mutations, malnutrition, thyrotoxicosis, myasthenia gravis, Parkinson's disease, and certain forms of insulin-resistant diabetes mellitus.

Did you know?

Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

Did you know?

All adverse reactions are commonly charted in red ink in the patient's record and usually are noted on the front of the chart. Failure to follow correct documentation procedures may result in malpractice lawsuits.

Evaluation measures to determine the success of goals Evaluation measures to determine the success of goals
Time Time
Under what conditions can part-time employment in high school be a negative influence on school ... Under what conditions can part-time employment in high school be a negative influence on school ...
Press into points along the neck with your thumb, one side at a time. Apply circular friction to ... Press into points along the neck with your thumb, one side at a time. Apply circular friction to ...
Disitive Time For Water Disitive Time For Water
Incomplete dominance in flowering time of pea plants Incomplete dominance in flowering time of pea plants
Video: Membrane Protein and Facilitated Transport (Passive Vs Active)

For a complete list of videos, visit our video library