Nova Science

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A collection of ten research papers applying the Rasch measurement method of analysing test results in new contexts. In making a measure of a variable intended for Rasch analysis, items are designed to be conceptually ordered by difficulty along an increasing continuum from easy…

&Quot;Most, yet not all, chemical substances consist of molecules. The fact that molecules have a "structure" is known since the middle of the 19th century. Since then, one of the principal goals of chemistry is to establish the relationships between the chemical and p…