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Interval Estimation and Optimal Design for the Within-subject Coefficient of Variation for Continuous and Binary Variables

Shoukri, Mohamed M.; Elkum, Nasser; Walter, Stephen D. - 2006

Background: In this paper we propose the use of the within-subject coefficient of variation as an index of a measurement's reliability. For continuous variables and based on its maximum likelihood estimation we derive a variance-stabilizing transformation and discuss confidence interval...

Persistent link: https://www.econbiz.de/10009447259

Trade-Off Between Sample Size and Accuracy: Case of Measurements under Interval Uncertainty

Nguyen, Hung T.; Kosheleva, Olga; Kreinovich, Vladik; … - 2008

In many practical situations, we are not satisfied with the accuracy of the existing measurements. There are two possible ways to improve the measurement accuracy:first, instead of a single measurement, we can make repeated measurements; the additional information coming from these additional...

Persistent link: https://www.econbiz.de/10009463349

Sample Size in Ordinal Logistic Hierarchical Linear Modeling

Timberlake, Allison M - 2011

Most quantitative research is conducted by randomly selecting members of a population on which to conduct a study. When statistics are run on a sample, and not the entire population of interest, they are subject to a certain amount of error. Many factors can impact the amount of error, or bias,...

Persistent link: https://www.econbiz.de/10009463361

Individual QoS versus aggregate QoS: A loss performance study

Xu, Ying; Guérin, Roch A - 2005

This paper explores the differences that can exist between individual and aggregate loss guarantees in an environment where guarantees are only provided at an aggregate level. The focus is on understanding which traffic parameters are responsible for inducing possible deviations and to what...

Persistent link: https://www.econbiz.de/10009439223

Spatial Aggregation and Prediction in the Hedonic Model

Fulcher, Charles Michael - 2003

as to the acceptability of spatial aggregation in hedonic property value models. Both statistical tests and tests based … upon prediction errors are performed in order to identify the circumstances under which aggregation is statistically … importance of specification and functional form as determinants of both the acceptability of aggregation and predictive power …

Persistent link: https://www.econbiz.de/10009431197

Sectoral mark-up dynamics in Spain

Estrada García, Angel; López Salido, J. David - 2005

In this paper we show that value-added mark-ups tend to be pro-cyclical in manufacturing and counter-cyclical in market services. However, at the sectoral level value-added mark-ups may be misinterpreted if intermediate input variations are ignored. This is particularly true in the case of the...

Persistent link: https://www.econbiz.de/10012530066

Unstable Individual Preferences and Stable Aggregate Demand: French Consumers’ Willingness to Pay for Farmed and Wild Cod

Alfnes, Frode; Rickertsen, Kyrre - 2009

generated by aggregation ratherthan derived from stable individual preferences. …

Persistent link: https://www.econbiz.de/10009444758