A social psychologist investigated whether participants are more likely to obey an order from an authority figure wearing a uniform compared to one wearing civilian clothes. They conducted a Chi-squared test to analyze the frequency of obedience in both conditions.
Directly below is the calculated value of chi-squared and the table of critical values:
Table 1: Critical values for the chi-squared test
| df | 0.10 | 0.05 | 0.02 | 0.01 |
|---|---|---|---|---|
| 1 | 2.71 | 3.84 | 5.41 | 6.64 |
Note: The calculated value of chi-squared must be equal to or greater than the critical value to be statistically significant.
With reference to the critical values in Table 1, explain whether or not the calculated value of chi-squared is significant at the 5% level.
121 exam-style questions on AQA A Level Psychology Inferential testing (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.