A team of clinical psychologists investigated daily distress levels in patients diagnosed with Obsessive-Compulsive Disorder (OCD) compared to a control group of neurotypical individuals over a four-week period.
The psychologists calculated the standard deviation for the daily distress scores of the group with OCD and found it to be 1.25.
They found a standard deviation of 3.12 for the daily distress scores of the control group without OCD.
Interpret what these two standard deviations tell us about the results.
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.
