correlations

Question 1

what is a correlation

Answer 1

mathematical technique used to investigate an association between co-variables
- variables are simply measured, not manipulated
- only association is found

Question 2

curvilinear relationship

Answer 2

as one variable increases, so dont the other but only up to a certain point - inverted U

Question 3

strengths

Answer 3

can be used as starting points to assess patterns between co-variables before committing to conducting an experimental

quick and economic to carry out

secondary data can be used in the correlation study which makes it even less time consuming

Question 4

limitations

Answer 4

difficult to establish a cause and effect relationship - only an association

third variable problem is presented - chance there is another variable that researcher is unaware of