Author Question: Can a conclusion that the exercise program caused more sleep? a. A cause and effect relation might ... (Read 428 times)

javeds

  • Hero Member
  • *****
  • Posts: 570
Can a conclusion that the exercise program caused more sleep?
 a. A cause and effect relation might be concluded because the study had a control group.
  b. A cause and effect relation might be concluded because the study was a randomized experiment.
  c. A cause and effect relation cannot be concluded because the study was an observational study.
  d. A cause and effect relation cannot be concluded because diet was not controlled.

Question 2

What is the explanatory variable in the study?
 a. Amount of food eaten (calories) per day
  b. Following an exercise program four times a week for 16 weeks (or not)
  c. Amount of sleep per night
  d. Age



chereeb

  • Sr. Member
  • ****
  • Posts: 326
Answer to Question 1

B

Answer to Question 2

B



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question


 

Did you know?

Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.

Did you know?

More than 4.4billion prescriptions were dispensed within the United States in 2016.

Did you know?

About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.

Did you know?

The top five reasons that children stay home from school are as follows: colds, stomach flu (gastroenteritis), ear infection (otitis media), pink eye (conjunctivitis), and sore throat.

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

For a complete list of videos, visit our video library