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Flashcards in Correlation Deck (14)
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1
Q

What is a correlational analysis?

A

A technique for analysing data

2
Q

What does a correlation measure?

A

The strength and direction of a relationship between variables. It is between 0 and 1 and it can be + or -. Therefore it requires quantitative data

3
Q

What are the variables called?

A

Co-variables

4
Q

What are the three types of correlations?

A

Positive, negative and zero correlation

5
Q

What is a positive correlation?

A

As one variable increases the other increases or as one variable decreases the other decreases

6
Q

What is a negative correlation?

A

As one variable increases the other decreases

7
Q

What is zero correlation?

A

There is no relationship

8
Q

What is a correlational coefficient?

A

A numerical measure of the strength of the relationship between two or more variables. It varies between -1 and +1

9
Q

What is a weak correlation?

A

0-0.3

10
Q

What is a moderate correlation?

A

0.3-0.7

11
Q

What is a strong correlation?

A

0.7-1

12
Q

What are two strengths of a correlation?

A

It can highlight the need for further research and it can be used when other methods are unethical

13
Q

What are two limitations of a correlation?

A

It is only useful for linear relationships and doesn’t establish the cause and effect

14
Q

What is the difference between a correlation and an experiment?

A

In an experiment the researcher manipulates the IV to measure the effect on the DV. In a correlation, there is no manipulation of a variable therefore we can’t establish the cause and effect