1
Q
what is a correlation
A
- researcher investigates an association between two variables
2
Q
what is a positive correlation
A
- as one co-variable increases so does the other
3
Q
what is a negative correlation
A
as one co-variable decreases so does the other
4
Q
what is a zero correlation
A
no relationship between the co-variables
5
Q
what are the strengths of correlations
A
- precise and quantifiable measure of how two variables are related
- starting points for later research and studies
- quick and economical to carry out
6
Q
what are the limitations of correlations
A
- cannot tell us why variables are related
- cannot establish cause and effect
- an untested variable could be causing the effect
Research Methods
flashcards
Decks in class (23)
# Cards
-
Experimental method8
-
Research issues7
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Experimental designs8
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Types of experiments12
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Sampling10
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Ethical issues and dealing with them8
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Types of studies3
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Observational techniques12
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Observational designs and issues6
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Self-report techniques9
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Self report design5
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Correlations6
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Types of data8
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measures of central tendency and dispersion7
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presentation of quantitative data5
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Statistical testing - sign test3
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peer review and research on the economy5
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case studies and content analysis8
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reliability7
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validity11
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statistical testing7
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probability and significance8
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features of science9
