This paper examines the dual coding hypothesis, a model of the coding of visual and textual information, from the perspective of a mass media professional, such as a teacher, interested in accurately presenting both visual and textual material to a mass audience (i.e., students). It offers an extension to the theory, based upon the various skill…

This codebook is one of a series designed to document the data collection of the 1990-91 Schools and Staffing Survey (SASS). The series contains the variable names and position numbers for all survey and sampling data. All data have been imputed to compensate for item nonresponse. This volume contains the restricted use codebooks for the SASS…