@misc{Tarka_Piotr_Measurement,_2011, author={Tarka, Piotr}, year={2011}, rights={Wszystkie prawa zastrzeżone (Copyright)}, description={Argumenta Oeconomica, 2011, Nr 2 (27), s. 65-100}, publisher={Wydawnictwo Uniwersytetu Ekonomicznego we Wrocławiu}, language={eng}, abstract={The main objective of this article was to describe issues related to theory of measurement and discuss significant role of selected reliability methods in a view of Classical True-Score Theory – CTM. In consequence the emphasis was put on description and comparison between different methods of reliability assessment such as: test-rest, parallel-test, split-half or internal consistency. The author investigated them primarily in context of psychometrics and its general applications in the area of marketing and customers research studies. In the second part of article, a new perspective on the measurement (Item Response Theory – IRT) was discussed. Later on, both concepts of measurement CTM and IRT were compared. Although researchers in the field of psychometrics have paid a considerable attention to measurement theory, in another field (e.g. marketing) these topics somehow have been neglected. And the recent advances in statistical analysis have drawn increasing attention to these nagging problems of measurement. Therefore in the article the author decided to review and stress the great importance of various concepts in reliability measurement. The author hopes that for researchers in the above field who wish to familiarize themselves with current debates over the right choice of an appropriate measurement design and strategies, it will be a good starting point for their own research and reliability estimation, especially when making a decision on how to develop an appropriate scale for measurement and choose for that scale respective estimate reliability. As a result, the description will be useful for managers, marketers, who want to study reliability and problems associated with scales construction to study customers behavior or market trends and those who want to attempt integrate measurement theory into their aggregate models of the business.}, title={Measurement, reliability and scales construction in a view of classical True-Score Theory}, type={artykuł}, keywords={reliability, methods of reliability, classical true-score theory, item response theory, scales}, }