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

Author Question: An example of history confounding the results of an interrupted time-series design on the effect of ... (Read 24 times)

asd123

  • Hero Member
  • *****
  • Posts: 557
on: Aug 4, 2018
An example of history confounding the results of an interrupted time-series design on the effect of a speed limit reduction could be
 
  A) an increased number of patrol cars.
  B) an increased number of tickets being given.
  C) an increase in the fine for tickets.
  D) All of the above

Question 2

In time-series designs, what are the two major potential confounding factors that are difficult to control without the addition of a comparison group?
 
  A) instrumentation and history
  B) regression to the mean and instrumentation
  C) history and attrition
  D) instrumentation and selection


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

asdfghjkl;

  • Sr. Member
  • ****
  • Posts: 323
Reply #1 on: Aug 4, 2018
Answer to Question 1

Answer: D

Answer to Question 2

Answer: A


asd123

  • Hero Member
  • *****
  • Posts: 557
Reply #2 on: Aug 4, 2018
Thanks


asdfghjkl;

  • Sr. Member
  • ****
  • Posts: 323
Reply #3 on: Aug 4, 2018
Welcome :)


« previous next »
 

Did you know?

Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.

Did you know?

Patients who have undergone chemotherapy for the treatment of cancer often complain of a lack of mental focus; memory loss; and a general diminution in abilities such as multitasking, attention span, and general mental agility.

Did you know?

In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

Did you know?

After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.

Did you know?

The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

Tracking time of marker entry generates a chromosome map Tracking time of marker entry generates a chromosome map
Earthquake history: Strike-Slip Fault in Turkey Earthquake history: Strike-Slip Fault in Turkey
Remedies for insomnia include increased physical exercise and time spent outdoors. Remedies for insomnia include increased physical exercise and time spent outdoors.
Flynn Effect IQ scores have risen across developed countries in recent decades. Source: Flynn (199 Flynn Effect IQ scores have risen across developed countries in recent decades. Source: Flynn (199
The slight (5 microsecond) difference in the firing of the companion cylinders is enough time to ... The slight (5 microsecond) difference in the firing of the companion cylinders is enough time to ...
Apply circular friction and direct pressure to suboccipital muscles one side at a time.Turn head to ... Apply circular friction and direct pressure to suboccipital muscles one side at a time.Turn head to ...
Video: Coronary Heart Disease Animation

For a complete list of videos, visit our video library