Introduction to Statistics and Quantitative Research Methods

Statistical Significance
What is statistical significance?
•
Statistically significant findings mean that the probability of
obtaining such findings by chance only is less than 5%.
– findings would occur no more than 5 out of 100 times by
chance alone.
What if your study finds there is an effect?
• You will need to measure how big the effect is, you can do this
by using a measure of association (odds ratio, relative risk,
absolute risk, attributable risk etc.).