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

Author Question: Which threat to internal validity does the reversal time series design attempt to address? a. ... (Read 75 times)

big1devin

  • Hero Member
  • *****
  • Posts: 583
on: Jun 20, 2018
Which threat to internal validity does the reversal time series design attempt to address?
 
  a. selection bias
  b. regression to the mean
   c. contemporary history
  d. pretest sensitization
  e. experimenter expectancy

Question 2

Contemporary history is a problem
 
  a. in all experimental and quasi-experimental designs
  b. when one group experiences an event that another group does not experience
  c. in research that deals with current events
   d. when another event occurs at the same time as the quasi-independent variable
  e. in program evaluation research


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

soda0602

  • Sr. Member
  • ****
  • Posts: 313
Reply #1 on: Jun 20, 2018
Answer to Question 1

C

Answer to Question 2

D


big1devin

  • Member
  • Posts: 583
Reply 2 on: Jun 20, 2018
Gracias!

Zebsrer

  • Member
  • Posts: 284
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Once thought to have neurofibromatosis, Joseph Merrick (also known as "the elephant man") is now, in retrospect, thought by clinical experts to have had Proteus syndrome. This endocrine disease causes continued and abnormal growth of the bones, muscles, skin, and so on and can become completely debilitating with severe deformities occurring anywhere on the body.

Did you know?

Medication errors are more common among seriously ill patients than with those with minor conditions.

Did you know?

Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.

Did you know?

There are 20 feet of blood vessels in each square inch of human skin.

Did you know?

Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

Much time and effort occurs between the development of a research idea and the statistical analysis Much time and effort occurs between the development of a research idea and the statistical analysis
Elrathia kingii growth series with holaspids ranging from 16.2 mm to 39.8 mm in length Elrathia kingii growth series with holaspids ranging from 16.2 mm to 39.8 mm in length
External and internal male sex organs External and internal male sex organs
Pat Steir, The Brueghel Series: A Vanitas of Style. Pat Steir, The Brueghel Series: A Vanitas of Style.
Milankovitch cycles interact over time Milankovitch cycles interact over time
Sequence Series Arithmatic Progression Problem Sequence Series Arithmatic Progression Problem
Video: Photosynthesis and Van Helmont Experiment

For a complete list of videos, visit our video library