Interpretation of r – problems in interpreting r values, Mathematics

Assignment Help:

Interpretation of r - Problems in interpreting r values

  • A high value of r as +0.9 or - 0.9 only shows a strong association among the two variables but doesn't imply that there is a causal relationship that is change in one variable causes change in the other it is possible to find two variables which produce a high calculated r until now they don't have a causal relationship. This is termed as nonsense or spurious correlation for illustration high pass rates in QT in US and increased inflation in Asian countries.
  • Also note that a low correlation coefficient does not imply lack of relation among variables but lack of linear relationship among the variables for illustration there could exist a curvilinear relation.
  • A further problem in interpretation arises from the fact that the r value here measures the relationship between a single dependent variable and independent variable, where as a particular variable may be dependent on several independent variables for illustration crop yield may be dependent on fertilizer utilized, soil exhaustion season of the year, , soil acidity level, type of seed. Whether case multiple correlations should be utilized instead.

 


Related Discussions:- Interpretation of r – problems in interpreting r values

Question, Hi I have a maths question related to construction as its a cons...

Hi I have a maths question related to construction as its a construction management course...i could send some example sheets too...could it be done?

Factors, write down all the factors of 36

write down all the factors of 36

What is metric system explain in brief, What is Metric System explain in br...

What is Metric System explain in brief? There are two main systems of measurement in use today. Most countries in the world use the Metric System. In only three countries-the

Find the length of the rectangle, Suppose that the width of a rectangle is ...

Suppose that the width of a rectangle is three feet shorter than length and that the perimeter of the rectangle is 84 feet. a)    Set up an equation for the perimeter involving

How much money did carlie have after she had paid her friend, Carlie receiv...

Carlie received x dollars every hour she spent babysitting. She babysat a total of h hours. She then gave half of the money to a friend who had stopped through to help her. How muc

Multiples, The sum of the smallest and largest multiples of 8 up to 60 is?

The sum of the smallest and largest multiples of 8 up to 60 is?

Understand the terms quotient and remainder, What other activities can you ...

What other activities can you suggest to help a child understand the terms 'quotient' and 'remainder'? Once children understand the concept and process of division, with enough

Find the common difference & write the next 3 terms, If the following terms...

If the following terms form a AP. Find the common difference & write the next 3 terms3, 3+ √2, 3+2√2, 3+3√2.......... Ans:    d= √2 next three terms 3 + 4 √ 2 , 3 + 5√ 2 ,

Estimate the probability, The following (artificial) data record the length...

The following (artificial) data record the length of stay (in days) spent on a psychiatric ward for 28 consecutive patients who have been sectioned under the mental health act, cla

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd