Researchers wish to test whether an adapted interview technique reduces cultural bias in eyewitness reports. Give a fully operationalised, non-directional null hypothesis and state an appropriate sampling method to reduce cultural bias in recruitment.
(a)Write a fully operationalised, non-directional null hypothesis for the study testing the adapted interview technique on eyewitness accuracy across cultural groups.(3)
(b)State a sampling method that would help reduce cultural bias when recruiting participants, and briefly describe how it would be implemented.(3)
(Total for Question 10 is 6 marks)