Results 271 to 280 of about 25,301,115 (309)
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Meta-analysis of longitudinal studies
Clinical Trials, 2007Background Longitudinal studies typically report estimates of the effect of a treatment or exposure at various times during the course of follow-up. Meta-analyses of these studies must account for correlations between effect estimates from the same study. Purpose To describe and contrast alternative approaches to handling correlations
K Jack, Ishak +4 more
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Unionism and Wages: A Longitudinal Analysis
The Review of Economics and Statistics, 1981THE impact of unionism on relative wage rates is a topic of long-standing interest in labor economics. Over the years researchers have used a variety of approaches to estimate the wage advantage associated with union membership. Initially, researchers compared the average wages of union and nonunion workers in specific sectors, such as an industry ...
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Urbanization and modernization: A longitudinal analysis
Studies in Comparative International Development, 1974It has been the goal of this paper to describe longitudinal patterns in urbanization over the last century and to analyze longitudinal relationships between urbanization and selected components of the modernization process. In order to accomplish these goals, an index of urbanization (Su) was constructed which took into consideration not only the ...
A S, Banks, D L, Carr
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Teenage smoking: A longitudinal analysis
International Journal of Adolescent Medicine and Health, 2005This paper examines the binary recurrent outcome "teenage smoking" within a statistical modelling paradigm. The proposed statistical modelling relates smoking to a set of explanatory variables, which include subjective as well as objective measures. In order to assess the degree to which explanatory variables influence smoking, an adequate statistical ...
Shahtahmasebi, S., Berridge, D. M.
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Longitudinal Analysis of Misuse of Bitcoin
2019We conducted a longitudinal study to analyze the misuse of Bitcoin. We first investigated usage characteristics of Bitcoin by analyzing how many addresses each address transacts with (from January 2009 to May 2018). To obtain a quantitative estimate of the malicious activity that Bitcoin is associated with, we collected over 2.3 million candidate ...
Karim Eldefrawy +2 more
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Industrialization and Development: A Longitudinal Analysis
Economic Development and Cultural Change, 1974The present paper reports on an effort to delineate patterns of change, as measured by certain "developmental" indicators, across a number of countries identifiable, by contemporary criteria, as either "industrialized" or "nonindustrialized." Two timespans will be considered: (1) a fairly lengthy period from 1865-1966, and (2) a more recent period from
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British Journal of Psychiatry, 1998
Background Longitudinal data arise frequently in psychiatric investigations, and are most often analysed by multivariate analysis of variance (MANOVA) procedures. However, as routinely applied, the method is not satisfactory, particularly when the data are affected by subjects dropping-out of the study.
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Background Longitudinal data arise frequently in psychiatric investigations, and are most often analysed by multivariate analysis of variance (MANOVA) procedures. However, as routinely applied, the method is not satisfactory, particularly when the data are affected by subjects dropping-out of the study.
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, 2008 Models for analysis of longitudinal data
European Respiratory Journal, 1993H, Goldstein, A, Baxter-Jones, P, Helms
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