Based on the study in question 14, researchers also evaluate…

Based on the study in question 14, researchers also evaluated short-and long-term reduction of knee pain with the numeric pain rating scale (NPRS, scoring 0-10, 0 representing “no pain” and 10 “worst pain ever”) during functional stabilization training (FST) in women with patellofemoral pain. The 31 women were evaluated on the NPRS at baseline, after 8 weeks of intervention, and during a follow-up, 3 months after the intervention. Which statistics did they use?