This paper identifies three basic concepts— (1) a system perspective, (2) triangulation of data collection, and (3) iterative data collection and analysis—and suggests that they provide a conceptual ...

This study investigated the effects of two methods of ordering practice instances in the Merrill and Tennyson (1977) design for teaching coordinate concepts. Previous findings indicated that a ...

Since the publication of the 2004 Consumer Price Index (CPI) Manual, methods and best practices have continued to evolve. During the 2014 UNECE-ILO CPI Experts Meeting, countries expressed a need for ...