Correlations

Question 1

What is the definition of a positive correlation

Answer 1

Co-variables move in the same direction

One increases other increases

Question 2

What is the definition of negative correlation

Answer 2

Co-variables moving in opposite directions

One increase as other decreases

Question 3

What is the definition of no correlation

Answer 3

No relationship between co-variables

Question 4

What are the two strengths of correlations

Answer 4

Can be used with unethical experiments

Can see the strength of relationship between variables

Question 5

What are the two weaknesses of correlations

Answer 5

Cannot establish the cause and effect

May be extraneous variables

Question 6

What is a correlation coefficient?

Answer 6

It shows the strength and direction of correlation

Question 7

What are the stages of coefficients

Answer 7

Strong + 1.0-0.8
Moderate + 0.8-0.5
Weak + 0.5-0.1
No correlation 0.1- -0.1
Weak - -0.1- -0.5
Moderate - -0.5- -0.8
Strong - -0.8 - -1.0