Correlations

Question 1

What is a correlation?

Answer 1

When two things are measured in order to identify if there is a relationship between them

Question 2

What is used to describe a relationship?

Answer 2

single numerical value

Question 3

What are the types of correlation?

Answer 3

• positive
• negative
• no correlation
• curvilinear

Question 4

What is the relationship of a positive correlation?

Answer 4

both variables increase together

Question 5

What is the relationship of a negative correlation?

Answer 5

As one variable increases, the other decreases

Question 6

What is the relationship of a no correlation?

Answer 6

no relationship between the variables

Question 7

What is the relationship of a curvilinear correlation?

Answer 7

The relationship is predictive although it is not linear

its curved

Question 8

define intervening variable

Answer 8

A variable that comes between two other variables, which is used to explain the association between those 2 variables

Question 9

What is a correlation co-efficient?

Answer 9

Tells us how strong the correlation is

A number between 0-1
- nearer to 1, the stronger the correlation

Question 10

what does a correlation co-efficient have in front of it?

Answer 10

a sign which tells us whether the correlation is positive or negative

Question 11

state a difference between correlations and experiments

Answer 11

experiments = controls/manipulates independant variable

correlations = no manipulations of the 2 variables