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 109 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
Wow, this really help

helenmarkerine

  • Member
  • Posts: 324
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.

Did you know?

Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.

Did you know?

More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.

Did you know?

If you could remove all of your skin, it would weigh up to 5 pounds.

Did you know?

Vital signs (blood pressure, temperature, pulse rate, respiration rate) should be taken before any drug administration. Patients should be informed not to use tobacco or caffeine at least 30 minutes before their appointment.

Tracheostomy. A tracheotomy, or incision into the trachea, is performed to create an opening into th Tracheostomy. A tracheotomy, or incision into the trachea, is performed to create an opening into th
Internal and External Loci of Control Internal and External Loci of Control
Increased amounts of "screen time" are contributing to decreased amounts of physical ... Increased amounts of "screen time" are contributing to decreased amounts of physical ...
Disitive Time For Fruits Disitive Time For Fruits
Sequence Series Arithmatic Progression Problem Sequence Series Arithmatic Progression Problem
Taylor's Series Taylor's Series
Video: Osteoporosis

For a complete list of videos, visit our video library