Rasch analysis of the Daily Living Tasks Dependent on Vision (DLTV)

Investigative Ophthalmology and Visual Science

Volumn 48, Issue 5, 2007, Pages 1976-1982

  Denny, Frances ^a,b   Marshall, Adele H ^b   Stevenson, Michael R ^c   Hart, Patricia M ^a   Chakravarthy, Usha ^a,c  

^a Centre for Vision Sciences

^b School of Mathematics and Physics   (United Kingdom)

^c QUEEN'S UNIVERSITY BELFAST   (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

ACCURACY; AGED; ARTICLE; CALIBRATION; CONTROLLED STUDY; DAILY LIVING TASKS DEPENDENT ON VISION SCORING SYSTEM; FEMALE; HUMAN; INTERNAL CONSISTENCY; MAJOR CLINICAL STUDY; MALE; PRIORITY JOURNAL; RASCH ANALYSIS; RATING SCALE; RELIABILITY; RETINA MACULA AGE RELATED DEGENERATION; SCORING SYSTEM; VISION; DAILY LIFE ACTIVITY; HEALTH SURVEY; PATHOPHYSIOLOGY; PATIENT; PSYCHOMETRY; QUALITY OF LIFE; QUESTIONNAIRE; RETINA MACULA DEGENERATION; VISUAL DISORDER;

ACTIVITIES OF DAILY LIVING; AGED; FEMALE; HEALTH STATUS INDICATORS; HUMANS; MACULAR DEGENERATION; MALE; PSYCHOMETRICS; QUALITY OF LIFE; QUESTIONNAIRES; VISION DISORDERS; VISUALLY IMPAIRED PERSONS;

EID: 34250197206     PISSN: 01460404     EISSN: None     Source Type: Journal    
DOI: 10.1167/iovs.06-0135     Document Type: Article

References (14)

1. Hart PM, Chakravarthy U, Stevenson MR, et al. A Vision specific functional index for use in patients with age related macular degeneration. Br J Ophthalmol. 1999;83:1115-1120.
2. Hart PM, Stevenson MR, Montgomery A-M, et al. Further validation of the Daily living Tasks Dependent on Vision (DLTV): identification of domains. Br J Ophthamol. 2005;89:1127-1130.
3. Massof RW. Likert and Guttman scaling of visual function rating scale questionnaires. Ophthalmic Epidemiol. 2004;11:381-399.
4. Pesudovs K, Garamendi E, Keeves JP, et al. The Activities of Daily Vision Scale for cataract surgery outcomes: re-evaluating validity with Rasch analysis. Invest Ophthalmol Vis Sci. 2003;44:2892-2899.
5. Hart PM, Chakravarthy U, MacKenzie G, et al. Visual outcomes in the Subfoveal Radiotherapy Study: a randomised controlled trial of teletherapy for Age-Related Macular Degeneration. Arch Ophthalmol. 2002;120:1029-1038.
6. Wright BD, Mok MMC. An overview of the family of Rasch measurement models. In: Smith EV, Smith RM, eds. An Introduction to Rasch Measurement: Theory, Models and Applications. Maple Grove, MN: JAM Press; 2004:Chap 1.
7. Linacre JM. Optimizing rating scale category effectiveness. In: Smith EV, Smith RM, eds. An Introduction to Rasch Measurement. Theory, Models and Applications. Maple Grove, MN: JAM Press; 2004:Chap 11.
8. Stelmack JA, Szlyk JP, Stelmack TR, et al. Psychometric properties of the Veterans Affairs Low Vision Visual function Questionnaire. Invest Ophthalmol Vis Sci. 2004;45:3919-3928.
9. Bond TG, Fox CM. The question of model fit. Applying the Rasch Model-Fundamental Measurement in the Human Sciences. Mahwah, NJ: Lawrence Erlbaum Associates; 2001:Chap 12.
10. Velozo CA, Lai JS, Mallinson T, et al. Maintaining instrument quality while reducing items: application of Rasch analysis to a self-report of visual function. J Outcome Meas. 2000;4:667-680.
11. Massof RW. Application of stochastic measurement models to visual function rating scale questionnaires. Ophthalmic Epidemiol. 2005;12:103-124.
12. Massof RW, Fletcher DC. Evaluation of the NEI visual function questionnaire as an Interval Measure of Visual Ability in Low Vision. Vision Res. 2001;41:397-413.
13. Smith HJ, Dickinson CM, Cacho I, et al. A randomized controlled trial to determine the effectiveness of prism spectacles for patients with age-related macular degeneration. Arch Ophthalmol. 2005;123:1042-1050.
14. Stevenson MR, Hart PM, Montgomery AM, et al. Reduced vision in older adults with age-related macular degeneration interferes with ability to care for self and impairs role as carer. Br J Ophthalmol. 2004;88:1125-1130.