Results 211 to 220 of about 23,895,724 (258)
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Data-Driven Subgroup Identification in Confirmatory Clinical Trials
Therapeutic Innovation & Regulatory Science, 2021Data-driven subgroup analysis plays an important role in clinical trials. This paper focuses on practical considerations in post-hoc subgroup investigations in the context of confirmatory clinical trials. The analysis is aimed at assessing the heterogeneity of treatment effects across the trial population and identifying patient subgroups with enhanced
Pierre Bunouf +3 more
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Missing Data in Confirmatory Clinical Trials
Journal of Biopharmaceutical Statistics, 2009Missing data for key efficacy and safety endpoints in clinical trials have the potential to undermine the scientific integrity of the study and prevent definitive conclusions regarding the safety and efficacy of an experimental product. Much of the missing data is the result of poor protocol design and a lack of agreement in the scientific community ...
Paul, Flyer, Joseph, Hirman
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Expert Systems for Confirmatory Data Analysis
IFAC Proceedings Volumes, 1987Abstract In statistics, estimation in linear models generally requires the classical hypotheses. Given a table of data, an expert system could test the presence or absence of various hypotheses, and associate an adequate estimator to most of the combinations.
M. Egea, J.-P. Marciano
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Confirmatory factor analyses of the WAIS–III standardization data.
Psychological Assessment, 2000Confirmatory factor analyses with the standardization data of the Wechsler Adult Intelligence Scale-Third Edition (Wechsler, 1997a) compared 6 models with 1 to 4 factors for 11- and 13-subtest versions of the test. Three factors usually fit the data better than 2 factors, but 2-factor models were more parsimonious.
Ward, LC, Ryan, JJ, Axelrod, BN
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Anthropometric data reduction using confirmatory factor analysis
WORK: A Journal of Prevention, Assessment & Rehabilitation, 2014OBJECTIVE: The unavailability of anthropometric data especially in developing countries has remained a limiting factor towards the design of learning facilities with sufficient ergonomic consideration. Attempts to use anthropometric data from developed countries have led to provision of school facilities unfit for the users.
Adeyemi, Ademola James +3 more
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The Quest for Confirmatory Data in Crime Scene Investigations
The Chemical Educator, 2016In today’s complex world a forensic chemist may prefer any physical evidence linking or exonerating a suspect from a crime scene to a false confession. This article utilizes forensic chemistry experimental approaches designed and implemented in an instructional workshop setting to present a unique perspective of certain facets of a crime scene ...
A. Bakarr Kanu, Lawrence J. Kaplan
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A Semi-Hierarchical Confirmatory Factor Model for Speeded Data
Structural Equation Modeling: A Multidisciplinary Journal, 2020This paper presents the semi-hierarchical model for confirmatory factor analysis of speeded data.
Karl Schweizer +2 more
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Development of the Relational Ageism Scale: Confirmatory Test on Survey Data
The International Journal of Aging and Human Development, 2019The objective of the study is to test a refined measure of attitudes about aging as a multidimensional construct reflective of a relational process that includes personal identity (i.e., beliefs about oneself), social identity (i.e., self-conception based on group membership), and collective identity (i.e., self-conception based on comparison of groups)
Tracey Gendron +3 more
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Bayesian confirmatory analysis of multiple response data
Applied Marketing Analytics: The Peer-Reviewed Journal, 2017This paper proposes a Bayesian confirmatory factor-analytic probit model to reveal the latent utility structure of multiple response data commonly found in marketing surveys. It conditions model formulation on previous knowledge and imposes a parsimonious hierarchical structure involving a measurement model (to define common factors) and a structural ...
Mauricio Ferreira +2 more
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Descriptive Data Analysis: A Concept between Confirmatory and Exploratory Data Analysis
Methods of Information in Medicine, 1987SummaryConfirmatory Data Analysis (CDA) in randomized comparative (“controlled”) studies with many variables and/or time points of interest finds its limitations in the multiplicity of desired inferential statements which leads to unfeasibly small adjusted significance levels (“Bon-ferronization”) and, thereby, to unduly increased risks of not ...
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