A brief review is provided of recent research on the impact of early visual language exposure on a variety of developmental outcomes, including literacy, cognition, and social adjustment. This body of work points to the great importance of giving young deaf children early exposure to a visual language as a critical precursor to the acquisition of…

Describes research using students at the University of Illinois at Urbana-Champaign that investigated the ways in which different levels of knowledge about a topic can affect search strategies in an online public access catalog. Previous research is reviewed, and implications for information intermediaries and designers of information retrieval…

Fifty-eight studies relating to the "knowledge gap" hypothesis (a theory that correlates public knowledge to educational level and mass media exposure) are examined in this report. In the opening sections, the theory is defined, and the early information diffusion studies and public opinion polls that led to its formulation in 1970 are…