« previous next »

Author Question: We seek to control extraneous variables in research because they A) are threats to reliability. ... (Read 64 times)

sammy

  • Hero Member
  • *****
  • Posts: 818
on: Aug 4, 2018
We seek to control extraneous variables in research because they
 
  A) are threats to reliability.
  B) distract the participants.
  C) reduce validity.
  D) reflect the experimenter's planned biases.

Question 2

Changes in one variable resulting in predictable changes in another
 
  A) show that a causal relationship cannot be inferred.
  B) can be observed only in naturalistic or case-study research.
  C) occur only in correlational studies.
  D) suggest that a causal relationship exists.


Sweetkitty24130

  • Sr. Member
  • ****
  • Posts: 291
Reply #1 on: Aug 4, 2018
Answer to Question 1

Answer: C

Answer to Question 2

Answer: D


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The human body's pharmacokinetics are quite varied. Our hair holds onto drugs longer than our urine, blood, or saliva. For example, alcohol can be detected in the hair for up to 90 days after it was consumed. The same is true for marijuana, cocaine, ecstasy, heroin, methamphetamine, and nicotine.

Did you know?

Asthma occurs in one in 11 children and in one in 12 adults. African Americans and Latinos have a higher risk for developing asthma than other groups.

Did you know?

On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.

Did you know?

Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.

Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

Some organisms used as models in genetic research Some organisms used as models in genetic research
Some organisms used as models in genetic research Some organisms used as models in genetic research
A toddler's developing motor skills allow the child to exert more independence and control over A toddler's developing motor skills allow the child to exert more independence and control over
Nursing Research Nursing Research
Juvenile buzzard being weighed for research Juvenile buzzard being weighed for research
People with Huntington disease develop problems with neuromuscular control and gradually lose the us People with Huntington disease develop problems with neuromuscular control and gradually lose the us
Video: Parkinson's Disease

For a complete list of videos, visit our video library