Correlations

Question 1

An experiment

Answer 1

Looks for a difference, involves an IV and DV

Question 2

Correlation coefficient

Answer 2

Number that represents the strength and direction of the relationship
‘-1’ is a neg, ‘0.00’ neutral/ no correlation, ‘+1’ is positive

Question 3

Example of a positive and negative correlation

Answer 3

Personal wealth and house value positively correlated

Wealth and debt negatively correlated

Question 4

Evaluation of correlational analysis

Answer 4

+ generally don’t have to manipulate variables
+ can numerically quantify a relationship
+ make predictions

• can’t determine cause and effect
• rel. could be due to an intervening variable
  Eg no. of ice-creams sold and violence- I variable of hot weather

Question 5

What is a correlation?

Answer 5

Looks for a relationship, no co variables- (strength of relationship/ direction of relationship)