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

Author Question: If a human observer becomes more proficient in the course of a study, the type of threat to internal ... (Read 26 times)

tatyanajohnson

  • Hero Member
  • *****
  • Posts: 569
on: Aug 4, 2018
If a human observer becomes more proficient in the course of a study, the type of threat to internal validity is called a change in
 
  A) proficiency.
  B) instrumentation.
  C) research bias.
  D) regression to the mean.

Question 2

The concept of regression to the mean suggests
 
  A) participants with extreme scores will score more extreme on a second test.
  B) scores of participants on a second test would be the same or similar to the first test.
  C) scores of participants on a second test would be less extreme on average on a second test.
  D) None of the above


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

briseldagonzales

  • Sr. Member
  • ****
  • Posts: 303
Reply #1 on: Aug 4, 2018
Answer to Question 1

Answer: B

Answer to Question 2

Answer: C


tatyanajohnson

  • Hero Member
  • *****
  • Posts: 569
Reply #2 on: Aug 4, 2018
Both answers were spot on, thank you once again


briseldagonzales

  • Sr. Member
  • ****
  • Posts: 303
Reply #3 on: Aug 4, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

Blood is approximately twice as thick as water because of the cells and other components found in it.

Did you know?

Many people have small pouches in their colons that bulge outward through weak spots. Each pouch is called a diverticulum. About 10% of Americans older than age 40 years have diverticulosis, which, when the pouches become infected or inflamed, is called diverticulitis. The main cause of diverticular disease is a low-fiber diet.

Did you know?

Though Candida and Aspergillus species are the most common fungal pathogens causing invasive fungal disease in the immunocompromised, infections due to previously uncommon hyaline and dematiaceous filamentous fungi are occurring more often today. Rare fungal infections, once accurately diagnosed, may require surgical debridement, immunotherapy, and newer antifungals used singly or in combination with older antifungals, on a case-by-case basis.

Did you know?

Every flu season is different, and even healthy people can get extremely sick from the flu, as well as spread it to others. The flu season can begin as early as October and last as late as May. Every person over six months of age should get an annual flu vaccine. The vaccine cannot cause you to get influenza, but in some seasons, may not be completely able to prevent you from acquiring influenza due to changes in causative viruses. The viruses in the flu shot are killed—there is no way they can give you the flu. Minor side effects include soreness, redness, or swelling where the shot was given. It is possible to develop a slight fever, and body aches, but these are simply signs that the body is responding to the vaccine and making itself ready to fight off the influenza virus should you come in contact with it.

Did you know?

Glaucoma is a leading cause of blindness. As of yet, there is no cure. Everyone is at risk, and there may be no warning signs. It is six to eight times more common in African Americans than in whites. The best and most effective way to detect glaucoma is to receive a dilated eye examination.

Photograph of the flea that transmits Yersinia pestis to cause bubonic plague, called the oriental r Photograph of the flea that transmits Yersinia pestis to cause bubonic plague, called the oriental r
Alien Human Alien Human
Human hand and wrist anatomy Human hand and wrist anatomy
Human Ear diagram Human Ear diagram
A wide variety of pathogens may live on or in the human body A wide variety of pathogens may live on or in the human body
The photo is a cross-section of thickened human skin The photo is a cross-section of thickened human skin
Video: Knee Animation

For a complete list of videos, visit our video library