An educational psychologist investigates whether a new interactive learning software improves reading comprehension scores in primary school pupils.
Which one of the following is a key requirement for the researcher's alternative hypothesis to be scientifically testable?
It must predict a directional (one-tailed) effect to ensure that the statistical power of the subsequent analysis is maximised.
The variables must be clearly operationalised so that the predicted relationship or difference can be empirically observed and falsified.
It must be stated alongside a null hypothesis that predicts a positive relationship between the variables.
It must be constructed after the pilot study data has been gathered to guarantee the prediction is realistic.
Practise AQA A Level Psychology Scientific processes with exam-style questions for A Level Psychology. 689 questions, matched to the AQA A Level Psychology (7182) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.
