Correlations

Question 1

What is an association and co variables

Answer 1

Association - Investigating association between 2 variables

Co variables - Variables investigated in a correlational study

Question 2

What is a positive correlation

Answer 2

As one variable increases, other variable also increases

Question 3

What is a negative correlation

Answer 3

As one variable increases, the other decreases

Question 4

What is zero correlation

Answer 4

Data is scattered

Question 5

Hypothesis for directional and non directional correlations

Answer 5

Directional - There is a positive/negative correlation between…
Non directional - There is a relationship/correlation between…

Question 6

Strengths and weaknesses of correlations

Answer 6

Strengths:
Can be repeated - easily replicable
Quick (secondary data can be used)
Can provide a starting point for an experiment

Weaknesses:
Correlation doesn’t mean causation
There could be an unknown third variable