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Nature of Science Construct: One Dimension or Five?


Marketed By :  LAP LAMBERT Academic Publishing   Sold By :  Kamal Books International  
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  • Product Description

This book guides readers on how to assess the dimensionality of a construct that has been developed within a Rasch-based measurement system. The Rasch model is a prescriptive model. If the data ‘fit the model’, items and respondents are placed on a common, interval-level linear scale that enables items and respondents to be analyzed qualitatively and statistically. A major assumption of the Rasch model is that the construct is unidimensional. The theoretical framework for the ‘Nature of Science’ (NOS) construct suggests it is composed of several dimensions that are separate but inter-related. Using data from an instrument designed to measure elementary students’ understanding of NOS; this book walks you through (step-by-step) on how to assess a construct’s dimensionality and build a validity argument to justify the use of scores from a Rasch-based instrument. This book will interest instrument developers who want to apply the Rasch model for survey design, development and measurement. Graduate students and practitioners in educational assessment will find it useful. Science practitioners can use the NOSI-E instrument to measure student NOS understanding on a large scale.

Product Specifications
SKU :COC63737
AuthorShelagh Peoples
Number of Pages304
Publishing Year2013-03-03T00:00:00.000
Edition1 st
Book TypeEconomics
Country of ManufactureIndia
Product BrandLAP LAMBERT Academic Publishing
Product Packaging InfoBox
In The Box1 Piece
Product First Available On ClickOnCare.com2015-07-08 00:00:00