An agricultural researcher is investigating the grain yield of a new hybrid variety of wheat grown across a large commercial estate. The estate consists of various plots with different soil compositions, drainage levels, and proximity to windbreaks. The researcher decides to select a sample of individual wheat plants using a simple random sample based on GPS grid coordinates across the entire estate, rather than taking an opportunity sample of plants easily reachable near the main access road.
Give one advantage of using a simple random sample rather than an opportunity sample in this research.
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.
