Dr. Harrison is conducting an observational research study to investigate whether there is an association between the type of therapy a client receives (CBT vs. MBT) and their level of treatment compliance (High vs. Low Compliance).
Complete Table 2 to calculate the chi-squared test statistic for Dr. Harrison's study to two decimal places.
Table 2: Chi-squared calculation table
| Therapy Group | Compliance Level | 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 |
|---|---|---|---|---|---|---|
| CBT | High Compliance | 14 | 10.8 | |||
| Low Compliance | 4 | 7.2 | ||||
| MBT | High Compliance | 10 | 13.2 | |||
| Low Compliance | 12 | 8.8 | ||||
| Chi-squared (χ2\chi^2χ2) = |
Practise Edexcel A Level Psychology Methods with exam-style questions for A Level Psychology. 638 questions, 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.