Conceptualizing and Measuring Confidence in Older Drivers: Development of the Day and Night Driving Comfort Scales Anita M. Myers, PhD, Josee A. Paradis, MSc, Robin A. Blanchard, MSc Archives of Physical Medicine and Rehabilitation Volume 89, Issue 4, Pages 630-640 (April 2008) DOI: 10.1016/j.apmr.2007.09.037 Copyright © 2008 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions
Fig 1 Probability curve for the 5-category collapsed DCS-D. Graphic representation of the probability of response for each of the 5 categories (0%, 25%, 50%, 75%, 100%). The y axis represents the probability of responding to 1 of these categories (0.0−1.0), and the x axis represents the person measure minus the item measure in logits. Archives of Physical Medicine and Rehabilitation 2008 89, 630-640DOI: (10.1016/j.apmr.2007.09.037) Copyright © 2008 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions
Fig 2 Probability curve for the 5-category collapsed DCS-N. Graphic representation of the probability of response for each of the 5 categories (0%, 25%, 50%, 75%, 100%). The y axis represents the probability of responding to 1 of these categories (0.0−1.0), and the x axis represents the person measure minus the item measure in logits. Archives of Physical Medicine and Rehabilitation 2008 89, 630-640DOI: (10.1016/j.apmr.2007.09.037) Copyright © 2008 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions
Fig 3 Person and item map for the DCS-D. Person ability is shown on the left and item difficulty on the right (measured in logits or equal intervals). Abbreviations: M, mean; S, 1 SD; T, 2 SDs. Legend is 1 respondent (located as having a 50% probability of endorsing the item). Archives of Physical Medicine and Rehabilitation 2008 89, 630-640DOI: (10.1016/j.apmr.2007.09.037) Copyright © 2008 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions
Fig 4 Person and item map for the DCS-N. Person ability is shown on the left and item difficulty on the right (measured in logits or equal intervals). Abbreviations: M, mean; S, 1 SD; T, 2 SD. Legend is 1 respondent (located as having a 50% probability of endorsing the item). Archives of Physical Medicine and Rehabilitation 2008 89, 630-640DOI: (10.1016/j.apmr.2007.09.037) Copyright © 2008 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions