What is a hypothesis?
A testable statement about what we expect to find out. It must refer to the independent and dependent variables.
What types of hypothesis are there?
H¹ = Alternative/Experimental Hypothesis – directional and non-directional
H² = Null Hypothesis
Directional Hypothesis
A Directional Hypothesis says there will be a change in one particular direction.
e.g. “Going on holiday will reduce my stress levels”
Non-Directional Hypothesis
It says the change could go in either direction
e.g. “Going on holiday will affect my stress levels”