U.S. Department of Agriculture. 2011. Food Assistance and Nutrition Programs: The National Household Food Acquisition and Purchase Survey (FoodAPS). Available: http://www.ers.usda.gov/Briefing/FoodNutritionAssistance/food_aps.htm.
U.S. Department of Energy. 2011. How Does EIA Estimate Energy Consumption and End Uses in U.S. Homes? Available: http://www.eia.gov/consumption/residential/methodology/2009/brief.cfm.
U.S. Office of Management and Budget. 2006. Guidelines on Agency Survey and Statistical Information Collection. Available: http://www.whitehouse.gov/sites/default/files/omb/inforeg/pmc_survey_guidance_2006.Pdf.
Warriner, K., J. Goyder, H. Gjertsen, P. Hohner, and K. McSpurren. 1996. Charities, no; lotteries, no; cash, yes: Main effects and interactions in a Canadian incentives experiment. Public Opinion Quarterly 60:542–562.
Weagley, R.O., and E. Huh. 2004. The impact of retirement on household leisure expenditures. Journal of Consumer Affairs 38 (2):262–281.
West, B., and K. Olson. 2010. How much of interviewer variance is really nonresponse error variance? Public Opinion Quarterly 5:99–114.
Westat. 2005. A Field Test of a Multiple Diary Procedure for the Consumer Expenditure Survey. Report to the Bureau of Labor Statistics. Rockville, MD: Westat.
Westat. 2011a. Data Capture Technologies and Financial Software for Collecting Consumer Expenditure Data. Final report to the Bureau of Labor Statistics. Available: http://www.bls.gov/cex/ceother2011westat.pdf.
Westat. 2011b. Redesign Options for the Consumer Expenditure Survey. Presentation at the Redesign Options Workshop, October 26, Committee on National Statistics, National Research Council, Washington, DC. Available: http://www.bls.gov/cex/redwrkshp_pp_westatrecommend.pdf.
Westat. 2011c. Redesign Options for the Consumer Expenditure Survey. Final report prepared for the National Academy of Sciences, NAS Solicitation Number DBASSE-004950-0001-031411. Washington, DC. Available: http://www.bls.gov/cex/redwrkshp_pap_westatrecommend.pdf and http://www.bls.gov/cex/redwrkshp_app_westatrecommend.pdf.
Wine, J., and J. Riccobono. 2011. National Postsecondary Student Aid Study. Presentation at the Household Survey Producers Workshop, June 1–2, Committee on National Statistics, National Research Council, Washington, DC. Available: http://www.bls.gov/cex/hhsrvywrkshp_wine.pdf.
Yin, W., S.A. DeVaney, and J. Stahura. 2005. Determinants of household expenditure on computer hardware and software. Journal of Consumer Affairs 39 (2):254–275.
Zichermann, G., and C. Cunningham. 2011. Gamification by Design: Implementing Game Mechanics in Web and Mobile Apps. Sebastopol, CA: O’Reilly Media.