Floor/Ceiling Effects

 

Multiple Sclerosis: (Amtmann et al., 2012; n=1271 individuals with MS living in the community, 80% female, 36.2% reported being employed 20 or more hours a week; mean age 50.7, mean disease duration 13.2 years, MS severity as minimal (EDSS≤4.0) for 32.4% and intermediate (EDSS 4.5-6.5) for 47.9% and advanced (EDSS≥7.0) for 19.7%)

• Floor effects: (number of respondents with the lowest possible score)

  • MFIS total= 1.1%

  • MFIS-phy=1.6%

  • MFIS-cog=2.7%

  • MFIS-psychosocial=7.4%

• Ceiling effect: (number of respondents with the highest possible score)

  • MFIS total= 0.7%

  • MFIS-phy=1.6%

  • MFIS-cog=0.9%

  • MFIS-psychosocial=9.0%

Responsiveness- Not Established