This topic contains a solution. Click here to go to the answer

Author Question: The inability to assign participants randomly to groups gives rise to which of the following ... (Read 138 times)

jwb375

  • Hero Member
  • *****
  • Posts: 540
The inability to assign participants randomly to groups gives rise to which of the following confounding variables?
 
  A) diffusion of treatment
  B) selection
  C) attrition
  D) sequence effects

Question 2

Assume we are studying two groups. One group is scheduled on Wednesday morning and another on Wednesday afternoon. Participants are selected on availability. The confounding variable in this study is
 
  A) selection.
  B) attrition.
  C) testing.
  D) instrumentation.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

mistyjohnson

  • Sr. Member
  • ****
  • Posts: 331
Answer to Question 1

Answer: B

Answer to Question 2

Answer: A





 

Did you know?

The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.

Did you know?

The most dangerous mercury compound, dimethyl mercury, is so toxic that even a few microliters spilled on the skin can cause death. Mercury has been shown to accumulate in higher amounts in the following types of fish than other types: swordfish, shark, mackerel, tilefish, crab, and tuna.

Did you know?

Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.

Did you know?

Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.

Did you know?

The average office desk has 400 times more bacteria on it than a toilet.

For a complete list of videos, visit our video library