1. Application of Rasch Analysis to Examine Psychometric Aspects of the Activities- Specific Balance Confidence Scale When Used in a New Cultural Context 
Solveig A. Arnadottir, MSc, Lillemor Lundin-Olsson, PhD, Elin D. Gunnarsdottir, PhD, Anne G. Fisher, ScD 
Archives of Physical Medicine and Rehabilitation 
Volume 91, Issue 1, Pages (January 2010)
DOI: /j.apmr
Copyright © 2010 American Congress of Rehabilitation Medicine Terms and Conditions

2. Fig 1
Category probability curves. A graphic presentation of the probability of response for each of the categories of the ABC-ICE. The y-axis represents the probability of responding to each of the categories, and the x-axis shows the person measure minus the item measure in logits. (A) The original ABC-ICE rating scale with 11 categories. The 0% (red), 50% (olive green), and 100% (black) were the categories that were most probable. The 70% and 80% categories had almost invisible hills and the rest of the categories—10%–40%, 60% and 90%—were never more probable than the others. (B) The modified ABC-ICE rating scale with 5 revised categories. All the categories were, at some point along the continuum, most probable (0%, red; 10–40%, blue; 50–70%, pink; 80%–90%, black; 100%, green).
Archives of Physical Medicine and Rehabilitation  , DOI: ( /j.apmr )
Copyright © 2010 American Congress of Rehabilitation Medicine Terms and Conditions

3. Fig 2
A map of person and item measures on the modified ABC-ICE with 5 categories and 15 items. The 183 participants are presented in the left column in which “#” = 2 persons and “.” = 1 person. The 15 items are presented in 3 columns to the right, indicating different rating scale measures. Lowest ratings = item measures in which a person has a 50:50 chance of being rated 0 or 1 on the 5-category scale; Average ratings = the mean item difficulty measures; highest ratings = item measures in which a person has a 50:50 chance of being rated 3 or 4 on the 5-category scale. Abbreviations: Mi, mean item measure; Mp, mean person measure.
Archives of Physical Medicine and Rehabilitation  , DOI: ( /j.apmr )
Copyright © 2010 American Congress of Rehabilitation Medicine Terms and Conditions