A psychologist wanted to investigate whether mindfulness meditation affects systolic blood pressure in high-stress corporate employees. Previous research on the effects of meditation on cardiovascular health had consistently shown that mindfulness training reduces systolic blood pressure.
The psychologist decided to use an independent measures design to investigate the effects of meditation on blood pressure in 40 office workers who scored highly on a pre-screened stress index.
At the end of the two weeks, the systolic blood pressure (measured in mmHg) of each participant was recorded.
Which of the following types of hypothesis is not appropriate for the psychologist to use in their study?
Non-directional hypothesis
Directional hypothesis
Null hypothesis
One-tailed hypothesis
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.
