Cornell University Research Study
Can Branding Improve School Lunches?
* Brian Wansink, PhD is the John S. Dyson Professor of Marketing in the Applied Economics and Management Department of Cornell
University. David R. Just, PhD is Associate Professor of Applied Economics and Management at Cornell University. Collin R. Payne, PhD is
an Assistant Professor of Marketing at New Mexico State University.
* Dr. Wansink is the corresponding author. Address: Cornell University, 15 Warren Hall, Ithaca NY 14853-7801, phone: 607-255-5024, fax:
607-255-9984, email: Wansink@Cornell.edu
Article text word count-598
As school food services outsource more and more of their food preparation, the processed products they offer to school children
are increasingly branded. There is a legitimate concern that branding will make the more indulgent foods even more attractive. Conversely, a
promising question is: could branding more dramatically improve the attractiveness of healthier foods? Brands, characters, and icons attract
the attention and interest of children. Pairing favorable icons with healthy food is not widely used, yet a low cost way to make healthy food
more salient could be to associate it with a favorable icon.
After obtaining Institutional Review Board approval at Cornell and after obtaining parental consent, 208 (99 female) children ranging from 8-11
years old were recruited from seven ethnically and economically diverse schools. The study occurred during lunchtime on five consecutive
days at each location. After selecting their lunch, each child was individually offered the opportunity to take one or more last items, either a
free apple and/or a cookie.
On the first day of the study, both the apple and the cookie were offered without a sticker, as a pre-test control. This enabled us to calibrate a
baseline preference for each child. On the last day of the study both the apple and cookie were offered without a sticker as a post-test control,
to help us determine if the presence of stickers on the apple had any carry-over.
The remaining three days were intervention sessions. On one day, children were 3 offered a choice between an apple (without an icon) and a
cookie that had a sticker of a familiar popular character (i.e., Elmo) on it. On another day, children were offered a choice between a cookie
(without an icon) and an apple that had a sticker of the Elmo icon on it. On another day their choice was between a cookie (without an icon)
and an apple with a sticker of an unknown character. On each day of the study, each child’s choice (cookie, apple or both) were unobtrusively
recorded, which served as the primary dependent variable for this study. Children were accustomed to knowing they could not take any lunch
food home with them. The majority of children who selected a food ate at least a portion of the food. All analyses were 1-tailed tests and were
performed using SPSS (version 16.0, SPSS Inc, Chicago, IL).
As indicated in Figure 1, the Elmo sticker led children to nearly double their apple choice compared to pre-test control session (χ 2 = 2.355, p
=.06). On the other hand, there was no effect of the Elmo icon on the cookie (χ 2 = .007, ns). Paired-samples t tests for the above
comparisons were constructed by comparing the choices of children who participated in two intervention sessions, although overall sample
size was decreased because not all children participated in all sessions. Consistent with the results of the chisquare test, there was a
marginally significant effect suggesting that children were more likely to choose an apple when the Elmo icon was on it than when there was
no icon (pretest control), t (78) = -1.65, p = .05. On the other hand, there was no effect of the Elmo icon on the cookie, t (82) = -1.18, ns. In
addition, there was the no effect of the unknown character icon on the apple choice compared with the pre-test control, t (98) = -.41, ns. 4
Overall we find preliminary evidence suggesting that subtle environmental interventions such as paring healthy foods with the Elmo icons
were effective in increasing healthy foods choice among school children.
The authors thank Jennifer Cole Nobel, Laura E. Smith, and Josh Baylin for help with data collection. Special thanks to the Robert Woods
Johnson Foundation for their support through their Healthy Eating Grant Program. Dr. Wansink had full access to all the data in the study and
takes responsibility for the integrity of the data and the accuracy of the data analysis.
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