Sampling Development

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Sampling Development.

Research in developmental psychology requires sampling at different time points. Accurate depictions of developmental change provide a foundation for further empirical studies and theories about developmental mechanisms. However, overreliance on widely spaced sampling intervals in cross-sectional and longitudinal designs threatens the validity of the enterprise. This article discusses how to sa...

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Electromagnetic Shower Development and Applications to Sampling

The application of electromagnetic theory to particle interactions is an old subject which represented one of the early successes in the study of particle interactions and fundamental forces. The ability to describe properties of electron, positron, and phc+ ton interactions has led to applications in numerous experimental devices used in high energy experiments. The subject is now considered t...

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Some Practical Sampling Procedures for Development Research

The perspective It is written from the point of view of statisticians familiar with teaching, and providing help to, non-statisticians. Our advisory input is often at stages of the research process when informal qualitative studies have already been done. Whether or not we were directly involved, we have, as long as we can remember, regarded mixing of methods, especially sequential mixing as na...

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Development and field testing of a miniaturized sampling system for simultaneous sampling of vapours and droplets.

The sampling of semi volatiles (SV) in workplaces may lead to different results as measurements may be affected by sampling bias. The new European Standard EN 13936 defines "semi-volatiles" as substances with vapour pressures in the range between 0.001 and 100 Pa at room temperature. EN 13936 regulates the basic requirements for SV compounds that can occur as vapour and particle at the same tim...

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Development of a device for sampling cattle breath

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ژورنال

عنوان ژورنال: Journal of Cognition and Development

سال: 2011

ISSN: 1524-8372,1532-7647

DOI: 10.1080/15248372.2011.608190