Correlations

Created by: BronwynY
Created on: 27-07-21 09:14

What's the difference between correlations and experiments?

Correlations look at the common relationship between two variables whereas an experiment tests the effect an IV has on a DV.

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Positive correlations

As one variable increases he other decreases

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Negative correlations

As one variable decreases another increases

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Zero correlations

There's no relationships

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Correlation coefficient

A number that represents the type + strength of the relationship between the variables

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State how strong the relationship between the variables is at each stage of the line

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What are some advantages of using correlations?

- Can be used when it's unethical or would be impractical to manipulate a variable in an experiment.

- Gives info about the extent of a relationship

- Gives us quantitative data which can be easily analysed

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What are the disadvantages of using correlations?

- You cannot infer a C+E

- May be other unknown variables linking them

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Other cards in this set

Card 2

Front

Positive correlations

Back

As one variable increases he other decreases

Card 3

Front

Negative correlations

Back

Card 4

Front

Zero correlations

Back

Card 5

Front

Correlation coefficient

Back

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Correlations