LS8 - Correlations

Question 1

Correlations

Answer 1

A technique for analysing the strength of the relationship between co-variables.

Question 2

Co-Variables

Answer 2

2 Quantitative Variables

Question 3

Positive Correlation

Answer 3

As one variable increases the other variables increases as well

Question 4

Negative Correlation

Answer 4

As one variables increases the other variables decreases.

Question 5

No Correlation

Answer 5

There is no realtionships between the two variables at all.

Question 6

Correlation Co-Efficient

Answer 6

The strength of a coefficient

Question 7

Advantages Of Correlations

Answer 7

Allows psychologists to establish the strength of the relationship between two variables and measure it precisely.
Aloows researchers to investigate things that could not be mainpulated experimentally
Once a correlation has been conducted predictions can be made about one of the variables based on what is known about the other variable.

Question 8

Disadvantages Of Correlations

Answer 8

Doesn’t demonstrate cause and effect - we can’t tell which variables influences the other.
Confounding variable - the two variables measured may not be related, but a third variable may influence both.
Only linear relationships, doesn’t measure curvilinear relationships where there is a positive relationship up to a certain point, after which it becomes negative.