Using Implementation Intentions Prompts to Enhance Influenza Vaccination Rates

27 Pages Posted: 5 Jul 2011

See all articles by Katherine L. Milkman

Katherine L. Milkman

University of Pennsylvania - The Wharton School

John Beshears

Harvard University - Business School (HBS); National Bureau of Economic Research (NBER)

James J. Choi

Yale School of Management; National Bureau of Economic Research (NBER)

David Laibson

Harvard University - Department of Economics; National Bureau of Economic Research (NBER)

Brigitte C. Madrian

Brigham Young University Marriott School of Business; National Bureau of Economic Research (NBER)

Date Written: June 2011

Abstract

We evaluate the results of a field experiment designed to measure the effect of prompts to form implementation intentions on realized behavioral outcomes. The outcome of interest is influenza vaccination receipt at free on-site clinics offered by a large firm to its employees. All employees eligible for study participation received reminder mailings that listed the times and locations of the relevant vaccination clinics. Mailings to employees randomly assigned to the treatment conditions additionally included a prompt to write down either (1) the date the employee planned to be vaccinated or (2) the date and time the employee planned to be vaccinated. Vaccination rates increased when these implementation intentions prompts were included in the mailing. The vaccination rate among control condition employees was 33.1%. Employees who received the prompt to write down just a date had a vaccination rate 1.5 percentage points higher than the control group, a difference that is not statistically significant. Employees who received the more specific prompt to write down both a date and a time had a 4.2 percentage point higher vaccination rate, a difference that is both statistically significant and of meaningful magnitude.

Suggested Citation

Milkman, Katherine L. and Beshears, John and Choi, James J. and Laibson, David I. and Madrian, Brigitte C., Using Implementation Intentions Prompts to Enhance Influenza Vaccination Rates (June 2011). NBER Working Paper No. w17183. Available at SSRN: https://ssrn.com/abstract=1879044

Katherine L. Milkman (Contact Author)

University of Pennsylvania - The Wharton School ( email )

Philadelphia, PA 19104
United States

John Beshears

Harvard University - Business School (HBS) ( email )

Soldiers Field Road
Morgan 270C
Boston, MA 02163
United States

National Bureau of Economic Research (NBER) ( email )

1050 Massachusetts Avenue
Cambridge, MA 02138
United States

James J. Choi

Yale School of Management ( email )

135 Prospect Street
P.O. Box 208200
New Haven, CT 06520-8200
United States

National Bureau of Economic Research (NBER) ( email )

1050 Massachusetts Avenue
Cambridge, MA 02138
United States

David I. Laibson

Harvard University - Department of Economics ( email )

Littauer Center
Room M-14
Cambridge, MA 02138
United States
617-496-3402 (Phone)
617-495-8570 (Fax)

National Bureau of Economic Research (NBER) ( email )

1050 Massachusetts Avenue
Cambridge, MA 02138
United States

Brigitte C. Madrian

Brigham Young University Marriott School of Business ( email )

Provo, UT 84602
United States

National Bureau of Economic Research (NBER) ( email )

1050 Massachusetts Avenue
Cambridge, MA 02138
United States

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