1. Modification and validation of the Lysholm Knee Scale to assess articular cartilage damage 
H.J. Smith, Ph.D., J.B. Richardson, M.D., A. Tennant, Ph.D. 
Osteoarthritis and Cartilage 
Volume 17, Issue 1, Pages (January 2009)
DOI: /j.joca
Copyright © 2008 Osteoarthritis Research Society International Terms and Conditions

2. Fig. 1
(a) Category probability curves for the squatting item showing disordered thresholds. (b) Category probability curves for the squatting item showing ordered thresholds after collapsing categories 1 and 2.
Osteoarthritis and Cartilage  , 53-58DOI: ( /j.joca )
Copyright © 2008 Osteoarthritis Research Society International Terms and Conditions

3. Fig. 2
Person–item distribution graph for the 7-item Lysholm Knee Scale.
Osteoarthritis and Cartilage  , 53-58DOI: ( /j.joca )
Copyright © 2008 Osteoarthritis Research Society International Terms and Conditions

4. Fig. 3
The Bland–Altman plot showing an even distribution of scores around the mean difference.
Osteoarthritis and Cartilage  , 53-58DOI: ( /j.joca )
Copyright © 2008 Osteoarthritis Research Society International Terms and Conditions