A researcher, Dr. Aris, conducted a study to investigate the relationship between technology use before bed and sleep quality. He plotted his findings in the scatter diagram below.

Explain one conclusion Dr. Aris could make from the results in the scatter diagram.
Practise Edexcel A Level Psychology Research methods and skills with exam-style questions for A Level Psychology. 657 questions covering Research methods and skills, matched to the Edexcel A Level Psychology (9PS0) 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.