Correlations

Question 1

Correlation

Answer 1

Illustrates the strength and direction of association between two co variables. There is no manipulation of variables so no cause and effect relationship can be established.

Question 2

Types of Correlation

Answer 2

Positive, Negative, Zero

Question 3

Positive Correlation

Answer 3

When both variables move in the same direction, both increasing, or both decreasing.

Question 4

Negative Correlation

Answer 4

One variable increasing, whilst the other decreases.

Question 5

Zero Correlation

Answer 5

No relationship between variables.

Question 6

Correlation Coefficient

Answer 6

Number produced from data of correlational study once a statistical test is carried out. Tells how strong relationship is and how closely variable linked and type of correlation. Between -1and 1. -1 = perfect negative correlation, 1 = perfect positive correlation

Question 7

Strengths

Answer 7

Quick and economical to carry out. No need to control environment or manipulate variables and secondary data used.
Allows for topics where unethical to manipulate variables.
Assesses possible further research areas. Precise, quantifiable measure of how two variables related so if significant may justify further research.

Question 8

Weaknesses

Answer 8

Misrepresent correlations as cause and effect.
Lack of experimental manipulation and now control so don’t know who causing who and possibility of third variable.