A criminological researcher wanted to investigate whether there was an association between the type of rehabilitation sentence (a short-term custodial sentence vs a community-based order) and compliance with post-sentence supervision conditions within 6 months of release. The compliance results are presented in Table 1.
Calculate the chi-squared statistic for this data by completing Table 2.
| Complied | Breached | |
|---|---|---|
| Short-term sentence | 34 | 6 |
| Community order | 36 | 24 |
| Observed (OOO) | Expected (EEE) | O−EO-EO−E | (O−E)2(O-E)^2(O−E)2 | (O−E)2/E(O-E)^2/E(O−E)2/E | ||
|---|---|---|---|---|---|---|
| Short-term sentence | Complied | 34 | 28.0 | |||
| Breached | 6 | 12.0 | ||||
| Community order | Complied | 36 | 42.0 | |||
| Breached | 24 | 18.0 | ||||
| chi-squared = |
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.
