Table 3 Maximum and Minimum Scores: Floor and Ceiling Effects.
From: Psychometric characteristics of the Spanish version of instruments to measure neck pain disability
Minimum Score Recorded | Patients With Minimum Score (Floor Effect) | Maximum Score Recorded | Patients With Maximum Score (Ceiling Effect) | |
|---|---|---|---|---|
NDI | 4.0 | 1 (0.5%) | 86.0 | 1 (0.5%) |
NPQ | 5.6 | 1 (0.5%) | 84.4 | 1 (0.5%) |
COM | 1.2 | 2 (0.9%) | 5.0 | 1 (0.5%) |