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Chad J. Gwaltney
Researcher at Brown University
Publications - 101
Citations - 7996
Chad J. Gwaltney is an academic researcher from Brown University. The author has contributed to research in topics: Smoking cessation & Craving. The author has an hindex of 38, co-authored 87 publications receiving 7152 citations. Previous affiliations of Chad J. Gwaltney include University of Pittsburgh.
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Journal ArticleDOI
Content validity--establishing and reporting the evidence in newly developed patient-reported outcomes (PRO) instruments for medical product evaluation: ISPOR PRO Good Research Practices Task Force report: part 2--assessing respondent understanding.
Donald L. Patrick,Laurie B. Burke,Chad J. Gwaltney,Nancy Kline Leidy,Mona L. Martin,Elizabeth Molsen,Lena Ring +6 more
TL;DR: This task force report is intended to offer suggestions for good practice in planning, executing, and documenting qualitative studies that are used to support the content validity of PRO instruments to be used in medical product evaluation.
Journal ArticleDOI
Content Validity—Establishing and Reporting the Evidence in Newly Developed Patient-Reported Outcomes (PRO) Instruments for Medical Product Evaluation: ISPOR PRO Good Research Practices Task Force Report: Part 1—Eliciting Concepts for a New PRO Instrument
Donald L. Patrick,Laurie B. Burke,Chad J. Gwaltney,Nancy Kline Leidy,Mona L. Martin,Elizabeth Molsen,Lena Ring +6 more
TL;DR: Suggestions for good practices in planning, executing, and documenting qualitative studies that are used to support the content validity of PRO instruments to be used in medical product evaluation are offered.
Journal ArticleDOI
Equivalence of electronic and paper-and-pencil administration of patient-reported outcome measures: A meta-analytic review.
TL;DR: Extensive evidence indicates that paper- and computer-administered PROs are equivalent, and the literature addressing whether computer- administered tests are equivalent to their paper-and-pencil forms is reviewed.
Journal ArticleDOI
Recommendations on Evidence Needed to Support Measurement Equivalence between Electronic and Paper-Based Patient-Reported Outcome (PRO) Measures: ISPOR ePRO Good Research Practices Task Force Report
Stephen Joel Coons,Chad J. Gwaltney,Ron D. Hays,J. Jason Lundy,Jeff A. Sloan,Dennis A. Revicki,William R. Lenderking,David Cella,Ethan Basch +8 more
TL;DR: Recommendations regarding the study designs and statistical approaches for assessing measurement equivalence are provided and provide a general framework for decisions regarding the level of evidence needed to support modifications that are made to PRO measures when they are migrated from paper to ePRO devices.
Journal ArticleDOI
Immediate antecedents of cigarette smoking: An analysis from ecological momentary assessment.
Saul Shiffman,Chad J. Gwaltney,Mark H. Balabanis,Kenneth S. Liu,Jean Paty,Jon D. Kassel,Mary Hickcox,Maryann Gnys +7 more
TL;DR: In daily life, affect appears to exert little influence over ad-lib smoking in heavy smoking adults, and smoking was strongly related to smoking urges and modestly related to consumption of coffee and food, the presence of other smokers, and several activities.