Dr. Sterling conducted a field experiment in a category C prison to evaluate the effectiveness of a novel Cognitive-Behavioural Anger Management Programme in reducing violent behavior. One group of inmates participated in the Anger Management Programme (Condition X), while a matched control group participated in standard recreational activities (Condition Y).
The prison staff monitored and recorded the number of aggressive outbursts (verbal or physical) for each participant over a six-week period following the intervention.
The results are displayed in Table 2.
Calculate the range for Condition Y.
| Condition X | Condition Y |
|---|---|
| Number of aggressive outbursts for those who completed the Anger Management Programme | Number of aggressive outbursts for those who completed the Standard Recreational Programme |
| 2 | 6 |
| 4 | 11 |
| 1 | 4 |
| 3 | 9 |
| 2 | 3 |
| 0 | 7 |
| 3 | 10 |
| 1 | 5 |
| 4 | 8 |
| 2 | 2 |
| 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.
