What does a non-directional (two-tailed) hypothesis in an experimental study state?
There will be a difference in the dependent variable (DV) between conditions, and the direction of this difference is predicted.
There will be a difference in the dependent variable (DV) between conditions, but the specific direction of this difference is not predicted.
There will be no significant difference in the dependent variable (DV) between experimental conditions.
There will be a relationship between two co-variables, but no direction is specified.
201 exam-style questions on OCR A Level Psychology Planning and conducting research. Each one has a worked solution and a mark scheme showing where the marks go.