How representative arebrics?

How representative is an image?

Many scientific publications, and especially those in the biological sciences, contain micrographs that are described in captions as ‘representative images’ or ‘typical images’. Often, these claims are not accompanied by substantiating data, and there is seldom a requirement to provide the data as supplementary material. Poor experimental design and subconscious bias can lead to the publication...

Consumer Heterogeneity and the Impact of Trade Liberalization: How Representative is the Representative Agent Framework?

While it is well established that across-country taste differences are associated with "home market effects", there is very limited analysis of how such preference heterogeneity impacts the aggregate volume of trade and the welfare gains from liberalization. I develop a structural model of aggregate demand featuring products with heterogeneous attributes, consumers with heterogeneous tastes for...

How to treat multiple myeloma - a representative multicentre treatment survey.

BACKGROUND The present survey was undertaken to gain insights in the changes of disease management of multiple myeloma (MM) over time and the implementation of new guidelines into daily practice. PATIENTS AND METHODS Diagnosis and treatment of MM were evaluated based on a 3-month representative multicentre survey including 386 patients from 35 centres in Germany in 2008. The results were comp...

How representative are patients in general practice morbidity surveys?

This study examined differences arising from the sampling of patients from general practice and household surveys. When 25 general practitioners, who agreed to participate in one week morbidity survey in inner western Sydney, were compared with all general practitioners (192) identified in the area, they were not significantly different in terms of socio-demographic variables and practice detai...

How representative are samples in a sampling network?