correlations Flashcards

1
Q

Whats a correlation

A

a way of establishing whether theres a relationship between 2 variables

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2
Q

what else does a correlation assess

A

the strength of the relationship

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3
Q

define positive correlation

A

as one variable increases so does the othere

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3
Q

what do correlations measure compared to experiments

A

the relationship between 2 variables whereas the experiment only measures the dependent variable

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4
Q

define negative correlation

A

as one variable increases the other falls

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5
Q

define no correlation

A

no relationship between variables

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6
Q

whats the difference between correlations and experiments

A

experiments show cause and effect correlations only show a relationship

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7
Q

how do experiments show cause

A

researcher manipulates IV and measures the change in DV

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8
Q

define correlation coefficient

A

a number between -1 and +1 that tells us the strength and direction between the 2 co-variables

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9
Q

define co-variables

A

the variables investigated within a correlation

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10
Q

strengths

A

provides a starting point for future research
can be tested for reliability due to quantitative data
relatively quick and economical

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11
Q

limitations

A

may lack validity due to variables being operationalised
doesnt show cause and effect

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