Author Question: The first step in the calculation of the Pearson product-moment correlation coefficient is to: a. ... (Read 63 times)

Mr. Wonderful

  • Hero Member
  • *****
  • Posts: 866
The first step in the calculation of the Pearson product-moment correlation coefficient is to:
 
  a. determine the z score for each score on each variable.
  b. determine the cross-products of the z scores.
  c. multiply the z score for variable X by the z score for variable Y.
  d. divide the cross-products by N.

Question 2

To calculate the coefficient of determination, we:
 
  a. square the correlation coefficient.
  b. take the square root of the correlation coefficient.
  c. multiply the correlation coefficient by 2
  d. divide the correlation coefficient by 2



joneynes

  • Sr. Member
  • ****
  • Posts: 376
Answer to Question 1

a

Answer to Question 2

a



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Patients who have been on total parenteral nutrition for more than a few days may need to have foods gradually reintroduced to give the digestive tract time to start working again.

Did you know?

Elderly adults are living longer, and causes of death are shifting. At the same time, autopsy rates are at or near their lowest in history.

Did you know?

Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.

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?

Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.

For a complete list of videos, visit our video library