RESEARCH DONE WHILE AT THE URBAN INSTITUE:
RESEARCH DONE WHILE AT THE SURVEY RESEARCH CENTER:
PAPERS AND CONFERENCE PRESENTATIONS:
RESEARCH DONE AS A CONSULTANT:
PERSONAL RESEARCH:
SURVEY RESEARCH CENTER'S NATIONAL CALL ATTEMPT DATA:
(Do your own on-line analysis using the Survey Research Center's call attempt
data for the years 1991 to 2001) 
Timothy Triplett's Home Page: