correlations Flashcards
what are the aims for correlations
aim is to find a relationship between co-variables
how ate correlations displayed
through a scattergraph
what are the 3 types of correlations
- positive
- negative
- no correlation (zero correlation)
what does a positive correlation show
both co-variables travel in the same direction
an example of a positive correlation
as one increases, so does the other
what is a negative correlation
co- variables travel together in the opposite direction
example of a negative correlation
as one increases, the other decreases
what is a zero correlation
no relationship between the co-variables
what is a strength within correlations
they can provide valuable insight for future research
what is another strength for correlations
can be used for a lab experiment would be unethical.
secondary data can be used
a weakness for a correlation
it’s not possible to establish cause and effect with correlations
another weakness within correlations
correlations can only identify linear relationships not curvilinear
