A cognitive psychologist is investigating the effects of sleep deprivation on reaction times. Since previous literature shows conflicting results, the psychologist wants to formulate a non-directional (two-tailed) hypothesis for the experiment.
Which of the following statements represents the correct hypothesis for this study?
There will be a significant difference in reaction times between sleep-deprived participants and fully-rested participants.
Sleep-deprived participants will have significantly slower reaction times than fully-rested participants.
There will be no significant difference in reaction times between sleep-deprived participants and fully-rested participants.
Reaction time is defined as the duration in milliseconds between the presentation of a visual stimulus on a screen and the participant pressing a key.
644 exam-style questions on OCR A Level Psychology Research methods and techniques. Each one has a worked solution and a mark scheme showing where the marks go.