Using geographic information systems (GIS), spatial data, and web mapping tools to enrich teaching and learning in geography courses is an effective way to integrate critical thinking and spatial analysis into the classroom (or virtual classroom). This lesson describes mapping song lyrics through ArcGIS Online. It explores how students analyze and…

As Paul Newton so ably demonstrates, the concept of validity is both important and problematic. Over the last several decades, a consensus definition of validity has emerged; the current edition of "Standards for Educational and Psychological Testing" notes, "Validity refers to the degree to which evidence and theory support the interpretations of…