Publications

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Displaying 101 through 142 of 142 publications.

Carson RT, Nelson LM, Williams VSL, Fehnel SE, Tourkodimitris S, Baird MJ, Johnston JM. Psychometric evaluation of patient-reported outcome measures for assessing IBS-C symptom severity and change: results from two randomized, double-blind, placebo-controlled phase 3 trials of linaclotide. Poster presented at the Joint International Neurogastroenterology and Motility Meeting; September 2012. [abstract] Neurogastroenterol Motil. 2012 Sep 1; 24(Suppl. 2):179.

Nelson LM, Stull DE, Coon CD, Gnanasakthy A. Use of latent growth modeling to evaluate construct validity in longitudinal studies. Presented at the 2012 ISPOR 17th Annual International Meeting; June 2012. Washington, DC.

Spiegel BMR, Locke GR, Kurtz C, Williams VS, Nelson LM, Carson RT. Developing benchmarks for clinically meaningful change for ibs-c symptoms using data from two phase 3 trials of linaclotide. Poster presented at the 2012 Digestive Disease Week; May 2012.

Bell C, McLeod LD, Nelson LM, Fehnel SE, Zografos LJ, Bowers B. Development and psychometric evaluation of a new patient-reported outcome instrument measuring the functional impact of insomnia. Qual Life Res. 2011 Nov 1;20(9):1457-68.

Williams VS, Nelson LM, Gilligan TM, Fehnel SE, Baird MJ, Carson RT. The relationship between changes in PRO measures of IBS-C symptoms and the IBS-QOL: results from two phase 3 trials of linaclotide. Poster presented at the 18th Annual Conference of the International Society for Quality of Life Research; October 1, 2011.

McLeod LD, Pulgar S, Nelson LM, Maldonado M, Gilligan T, Zhang Y. Psychometric evaluation of the Cushing's quality of life questionnaire (CushingQOL). Poster presented at the 18th Annual Conference of the International Society for Quality of Life Research; October 2011.

McLeod LD, Williams VS, Nelson LM, Coon CD. Psychometrics for the non-psychometrician – part I. Presented at the 18th Annual Conference of the International Society for Quality of Life Research; October 2011.

Nelson LM, Williams VS, Gilligan TN, Fehnel SE, Baird MJ, Carson RT. Examining the relationship between changes in pro measures of chronic constipation symptoms and the pac-qol: results from two phase 3 trials of linaclotide. Poster presented at the 18th Annual Conference of the International Society for Quality of Life Research; October 1, 2011.

Nelson LM, Nixon A, Copley-Merriman K. Documenting PRO evidence for regulatory submissions to support labeling claims. Poster presented at the International Society for Quality of Life Research Workshop #2; October 2011.

Coon CD, Nelson LM, Gilligan T. Advanced psychometric methods for PRO development – factor analysis. Presented at the 18th Annual Conference for the International Society for Quality of Life Research; October 2011.

Coon CD, Nelson LM, McLeod LD, Williams VS. Psychometrics for the non-psychometrician – part II. Presented at the 18th Annual Conference of the International Society for Quality of Life Research; October 2011.

Dalal AA, Nelson L, Gilligan T, McLeod L, Lewis S, Demuro-Mercon C. Evaluating patient-reported outcome measurement comparability between paper and alternate versions, using the lung function questionnaire as an example. Value Health. 2011 Jul 1;14(5):712-20.

Dalal AA, Nelson L, Gilligan TM, McLeod LD, Lewis SE, DeMuro C. Measurement comparability between paper and alternate versions: recommended assessment steps using the lung function questionnaire as an example. Poster presented at the 2011 ISPOR 16th Annual International Meeting; May 25, 2011. [abstract] Value Health. 2011 May; 14(3):A145.

Gilligan TM, Nelson L, Dalal AA, McLeod LD. Visually evaluating the measurement comparability between paper-based and alternate versions of administration of the lung function questionnaire. Poster presented at the 2011 ISPOR 16th Annual International Meeting; May 25, 2011. [abstract] Value Health. 2011 May; 14(3):A153.

Dalal A, DeMuro-Mercon CJ, Lewis SA, Nelson LM, Gilligan T, McLeod LD. Mixed modes of administration of the lung function questionnaire: validation in subjects with smoking history. Poster presented at the International Conference of the American Thoracic Society; May 2011.

Dalal AA, Demuro-Mercon C, Lewis S, Nelson L, Gilligan T, McLeod L. Validation of alternate modes of administration of the lung function questionnaire (LFQ) in subjects with smoking history. Int J Chron Obstruct Pulmon Dis. 2010 Dec 1;5:425-34.

Williams VSL, Carson RT, Nelson LM, MacDougall J, Fehnel SE, Lewis B, Johnston JM. Application of exploratory factor analysis to support the conceptual framework of PRO measures: results from a phase 2 study of irritable bowel syndrome with constipation. Poster presented at the International Society for Quality of Life Research (ISOQOL) 2010 Annual Meeting; November 18, 2010.

Coon CD, Price MA, Nelson LM. Advanced patient-reported outcomes assessment: psychometric methods. Presented at the 2010 ISPOR 13th Annual European Congress; November 2010. Prague, Czech Republic.

Nelson LM, McLeod LD, Mordin MM, Farr J, Cole BJ, Uddin S, Engelhart L. Psychometric evaluation of the Knee Injury and Osteoarthritis Outcome Score (KOOS) subscales for patients with articular cartilage lesions of the knee using pilot study data of the Cartilage Autograft Implantation System (CAIS). Poster presented at the 9th World Congress of the International Cartilage Repair Society; September 2010.

Lee LJ, Fahrbach JL, Nelson LM, McLeod LD, Martin SA, Sun P, Weinstock RS. Effects of insulin initiation on patient-reported outcomes in patients with type 2 diabetes: results from the DURABLE trial. Diabetes Res Clin Pract. 2010 Aug 1;89(2):157-66.

Coon CD, Williams VSL, Nelson LM, Price MA. Determining missing data rules for patient-reported outcomes: alpha-if-item-deleted. Poster presented at the 2010 ISPOR 15th Annual International Meeting; May 26, 2010.

Nelson L, Coon C, Williams V, Price M. Determining missing data rules for pros: alpha-if-item-deleted. Poster presented at the 2010 ISPOR 15th Annual International Meeting; May 2010. Atlanta, GA. [abstract] Value Health. 2010 May; 13(3):A21.

Gilligan T, Coon C, Nelson L, McLeod L, Yang Y. Let SAS® do the work: correlation crossroads. Presented at the SAS Global Forum 2010; April 2010. Seattle, WA.

Hooper SR, Roberts JE, Nelson LM, Zeisel S, Kasambira D. Preschool predictors of narrative writing skills in elementary school children. Sch Psychol Q. 2010 Mar;25(1):1-12.

Nelson LM, McLeod LD, Lee J, Hill C, Sweeney CT, Sun P. Effects of insulin therapy on the Diabetes Symptom Checklist-Revised (DSC-R): data from a large insulin clinical trial. Presented at the 2009 16th Annual Conference of the International Society for Quality of Life Research; October 2009. New Orleans, LA.

Nelson LM, Copley-Merriman K, Norquist J, Powers J. PRO evidence dossier: evidence to support labeling and promotional claims for FDA-regulated medicine products. Poster presented at the International Society for Quality of Life Research Workshop #3; October 2009.

Lee J, McLeod LD, Nelson LM, Hill C, Sweeney CT, Sun P. Initiation of insulin therapy improves self-reported diabetes symptoms in patients (Pts) with type 2 diabetes (T2D) on oral agents. Poster presented at the 69th Scientific Sessions of the American Diabetes Association; June 2009.

Lee LJ, Nelson LM, McLeod LD, Hill CD, Sweeney CT. Effects of insulin therapy on the Diabetes Symptom Checklist-Revised (DSC-R): data from a large insulin clinical trial. Poster presented at the 2009 ISPOR 14th Annual International Meeting; May 21, 2009. [abstract] Value Health. 12(3):A105.

MacDougall JE, Erder MH, Nelson LM, Price MA, Williams VS, Johnston JM. Correlational structure of IBS-C PRO symptom measures determined by exploratory factor analysis an relationship to global PRO assessments: results from a phase 2 trial of linaclotide in IBS-C. Poster presented at the 2009 NGM Scientific Meeting; 2009.

Mosconi M, Nelson LM, Hooper SR. Confirmatory Factor Analysis of the NEPSY for younger and older school-age children. Psychol Rep. 2008 Jun;102(3):861-6.

De Bellis MD, Van Voorhees E, Hooper SR, Gibler N, Nelson LM, Hege SG, Payne ME, MacFall J. Diffusion tensor measures of the corpus callosum in adolescents with adolescent onset alcohol use disorders. Alcohol Clin Exp Res. 2008 Mar;32(3):395-404.

Bailey D, Nelson LM, Hebbeler K, Spiker D. Modeling the impact of formal and informal supports for young children with disabilities and their families. Pediatrics. 2007 Oct 1;120(4):e992-e100.

Roberts J, Price J, Nelson LM, Burchinal M, Hennon E, Barnes B. Receptive vocabulary, expressive vocabulary, and speech production of boys with fragile X syndrome in comparison to boys with Down syndrome. Am J Ment Retard. 2007 May 1;112:177-93.

Nelson LM, Willoughby M. Introducing propensity score methods to developmental psychologists. Poster presented at the Society for Research in Child Development 2007 Biennial Meeting; March 2007.

Peisner-Feinberg ES, Nelson LM, Schaaf JM. Longitudinal cognitive and social development of at-risk participants in a statewide school readiness program. Presented at the Society for Research in Child Development 2007 Biennial Meeting; March 2007.

Jackson SC, Roberst JE, Wolfram W, Terry M, Renn J, Bowers AW, Kasambria D, Nelson LM. Dialectal forms of African American children in relation to language and literacy development. Poster presented at the Society for Research in Child Development 2007 Biennial Meeting; March 2007.

Foreman J, Martin G, Roberts JE, Moskowitz L, Harris A, Nelson LM. Initiations in the discourse of boys with fragile x syndrome and down syndrome. Poster presented at the International Fragile X Conference; July 2006.

Martin GE, Roberts JE, Moskowitz L, Harris A, Foreman J, Nelson LM. Discourse skills of boys with fragile x syndrome in comparison to boys with down syndrome. Poster presented at the International Fragile X Conference; July 2006.

Nelson LM, Burchinal M, Brooks-Gunn J, Carlson M. Family and community selection factors in child care choice. Poster presented at the Society for Research in Child Development 2003 Biennial Meeting; April 2003.

Rosa K, Swygert K, Nelson LM, Thissen D. Some ideas about item response theory applied to combinations of multiple-choice and constructed-response items—scale scores for patterns of summed scores. In: Bourque ML, editors. Proceedings of achievement levels workshop. Washington: DC. National Assessment Governing Board; 1998. p.65-76.

Thissen D, Rosa K, McLeod LD, Nelson LM. A brief introduction to item response theory for items scored in more than two categories. Presented at the Achievement Levels Workshop National Assessment; 1997. Boulder, CO.

Rosa K, Nelson LM, Swygert K, Thissen D. Linear approximations for scaled scores developed with item response theory for combinations of multiple-choice and open-ended items. Presented at the Annual Meeting of the Psychometric Society; June 1996. Banff, Canada.