Dr Vance conducted a field study in a category C prison to investigate whether a new cognitive-behavioural anger management programme was effective at reducing verbal aggression among inmates. She compared a group of inmates who participated in the 6-week anger management programme (Condition A) with a matched control group of inmates on the waiting list (Condition B).
Dr Vance recorded the number of self-reported verbal aggression incidents for each participant during a one-month post-intervention monitoring period.
Dr Vance's results are shown in Table 2.
Calculate the range for Condition B and complete Table 2 with your answer.
Table 2
| Condition A | Condition B |
|---|---|
| Number of verbal aggression incidents for those who completed the anger management programme | Number of verbal aggression incidents for those on the waiting list |
| 3 | 12 |
| 1 | 5 |
| 4 | 14 |
| 2 | 8 |
| 2 | 11 |
| 0 | 6 |
| 1 | 13 |
| 3 | 9 |
| 2 | 7 |
| 2 | 15 |
| Range = 4 | Range = |
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.
