Correlations

Question 1

What is a positive correlation

Answer 1

Both the subjects increase

Question 2

What is a negative correlation

Answer 2

One subject decreases as the other increases

Question 3

What is correlation co-efficient

Answer 3

It is a scale from -1 to +1

Question 4

What does -0.7 mean on a correlation co-efficient

Answer 4

It is a strong negative correlation

Question 5

What does 0.7 mean on a correlation co- efficient

Answer 5

It is a strong positive correlation

Question 6

What is a correlation?

Answer 6

It is a mathematical technique in which a researcher investigates association between two variables, called co-variables

Question 7

What are the evaluation points for correlations

Answer 7

Strengths- quick and economical to carry out
no need for controlled environments
Can use secondary data which means less timing consuming than experiments.
Limitations- Can only tell us that they are related and not how
An untested variable is causing the relationship between the two co variables which we are interested