Anika wants to carry out an investigation to see whether personality traits are linked to stress. She placed posters in the local doctor's surgery asking for volunteers with a Type A personality. She asked them to contact her if they were willing to take part in her investigation and complete a questionnaire about their personality and stress.
Explain one reason why Anika recruited her sample from those who have a Type A personality.
AO2 (1 mark), AO3 (1 mark)
Credit one mark for identification of a reason in relation to the scenario
(AO2).
Credit one mark for justification/exemplification of the reason (AO3).
For example:
- Anika needs to restrict the range of her sample as she only wants
to investigate people with Type A personality as they are known to
be more stressed (1) so if she used an opportunity sample, this
may also attract people who are at the doctor's surgery on the
day of the investigation but are not Type A which would not be
representative of her target population (1).
Look for other reasonable marking points.
Generic answers score 0 marks.
(2)