Research Methods Y2 - Correlations Flashcards
1
Q
What is a correlation?
A
Correlation is a mathematical technique in which a researcher investigates an association between two variables, called co-variables.
2
Q
What is a correlation coefficient?
A
A correlation coefficient is a number between -1 and +1 that represents the direction and strength of a relationship between co-variables.
3
Q
What does a correlation coefficient of +1, 0, and -1 represent?
A
+1 represents a perfect positive correlation, 0 indicates no correlation, and -1 represents a perfect negative correlation.
4
Q
What determines whether a correlation is statistically significant?
A
Statistical significance depends on the size of the data set.
