Goodman, M., Lazer, S., Mazzeo, J., Mead, N., & Pearlmutter, A. (1998, September). Research report: 1994 NAEP U.S. History Group assessment. Washington, DC: Department of Education.
A summary of this report and the text of the full report are available at http://nces.ed.gov/nationsreportcard/pubs/main1994/98533.shtml.