A psychologist conducted an observational study to investigate whether adolescent video gamers (aged 12–15) and young adult video gamers (aged 18–21) differ in their preference for cooperative versus competitive multiplayer game modes during free play.
The researcher calculated a chi-squared value of χ2=2.89\chi^2 = 2.89χ2=2.89 for the data, with df=1df = 1df=1, using a two-tailed test.
Analyse the results of the chi-squared test to explain what they show about whether adolescent or young adult video gamers preferred cooperative or competitive game modes.
| Level of significance for a one-tailed test | ||||||
|---|---|---|---|---|---|---|
| 0.10 | 0.05 | 0.025 | 0.01 | 0.005 | 0.0005 | |
| Level of significance for a two-tailed test | ||||||
| df | 0.20 | 0.10 | 0.05 | 0.025 | 0.01 | 0.001 |
| 1 | 1.64 | 2.71 | 3.84 | 5.02 | 6.64 | 10.83 |
| 2 | 3.22 | 4.61 | 5.99 | 7.38 | 9.21 | 13.82 |
638 exam-style questions on Edexcel A Level Psychology Methods. Each one has a worked solution and a mark scheme showing where the marks go.