A clinical psychologist, Dr. Aris, obtained a calculated Chi-squared value of 2.48 with df=1df = 1df=1 when analyzing the relationship between the presence of a therapy dog and patient participation in group therapy.
Using the table of critical values below, explain whether Dr. Aris's results are significant for a directional (one-tailed) hypothesis at the p≤0.05 p \le 0.05\,p≤0.05 level of significance.
| Level of significance for a one-tailed test | p≤0.05p \le 0.05p≤0.05 | p≤0.01p \le 0.01p≤0.01 |
|---|---|---|
| Critical value (df=1df = 1df=1) | 2.71 | 5.41 |
Practise Edexcel A Level Psychology Methods with exam-style questions for A Level Psychology. 100 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.