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

Author Question: The problem with static group comparison designs is that _____. a. there are too many independent ... (Read 40 times)

tuffie

  • Hero Member
  • *****
  • Posts: 534
The problem with static group comparison designs is that _____.
 
  a. there are too many independent variables
  b. there are too many unknown differences between the groups
  c. there are too many dependent variables
  d. the random assignment technique didn't result in equivalent groups

Question 2

In observational studies the researcher manipulates the experiment and observes the results closely.
 
  Indicate whether the statement is true or false



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

14vl19

  • Sr. Member
  • ****
  • Posts: 310
Answer to Question 1

B
When random assignment is not used to form the comparison groups, it is impossible to know what caused the differences observed between the groups.

Answer to Question 2

F




tuffie

  • Member
  • Posts: 534
Reply 2 on: Jun 19, 2018
Gracias!


fatboyy09

  • Member
  • Posts: 358
Reply 3 on: Yesterday
Excellent

 

Did you know?

Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

Most fungi that pathogenically affect humans live in soil. If a person is not healthy, has an open wound, or is immunocompromised, a fungal infection can be very aggressive.

Did you know?

Though newer “smart” infusion pumps are increasingly becoming more sophisticated, they cannot prevent all programming and administration errors. Health care professionals that use smart infusion pumps must still practice the rights of medication administration and have other professionals double-check all high-risk infusions.

Did you know?

Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

For a complete list of videos, visit our video library