29.11 Quick review questions
A study (Bacho et al. 2019) compared joint pain in stroke patients before and after a supervised exercise treatment. Participants (\(n=34\)) were assessed before and after treatment. The mean change in joint pain after 13 weeks was 1.27 (with a standard error of 0.57) using a standardised tool.
- True or false? Only ‘before and after’ studies can be paired.
- True or false? The null hypothesis is about the population mean difference.
- The value of the test statistic (to two decimal places) is
- The two-tailed \(P\)-value will be