Author Question: What is the strongest method of controlling for intrinsic (subject) factors? A) Statistical ... (Read 76 times)

londonang

  • Hero Member
  • *****
  • Posts: 540
What is the strongest method of controlling for intrinsic (subject) factors?
 
  A) Statistical control
  B) Randomization
  C) Matching
  D) Homogeneity

Question 2

Which of the following situations illustrates control over an external confounding variable?
 
  A) Using a script to relay information about the study.
  B) Randomizing assignment to control treatment groups.
  C) Allowing for maximum flexibility over where data is collected.
  D) Choosing a heterogeneous sample of subjects.



kusterl

  • Sr. Member
  • ****
  • Posts: 315
Answer to Question 1

B
Feedback:
The strongest method of controlling for intrinsic (subject) factors is randomization. It is the most effective method of controlling participants' characteristics. Homogeneity occurs when people who are similar in respect to confounding variables are included in the study. Matching involves consciously forming comparable groups. Statistical control is the ability to have control over confounding variables statistically.

Answer to Question 2

A
Feedback:
Use of a script to relay information about the study illustrates control over an external confounding variable-study context. Randomizing assignment to control the treatment groups, allowing for maximum flexibility over where data is collected, or choosing a heterogeneous sample of subjects does not illustrate control over an external confounding variable but pertain rather to those intrinsic to study participants.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.

Did you know?

Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.

Did you know?

A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

Did you know?

Addicts to opiates often avoid treatment because they are afraid of withdrawal. Though unpleasant, with proper management, withdrawal is rarely fatal and passes relatively quickly.

Did you know?

The most common childhood diseases include croup, chickenpox, ear infections, flu, pneumonia, ringworm, respiratory syncytial virus, scabies, head lice, and asthma.

For a complete list of videos, visit our video library