Expanding the Reach of the USDA Fresh Fruit and Vegetable Program in Wisconsin Elementary Schools
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Transcript Expanding the Reach of the USDA Fresh Fruit and Vegetable Program in Wisconsin Elementary Schools
University of Wisconsin-Eau Claire
Expanding the Reach of the USDA
Fresh Fruit & Vegetable Snack Program:
Do Incentives and Reminders Work?
Faculty Researchers: Dr. Lori Bica and Dr. Eric Jamelske
Student Researchers: April Ross, Kevin Reinhold,
Elizabeth Reinke, Laurelyn Wieseman Aaron Wingad
University of Wisconsin-Eau Claire
Economics & Psychology Departments
Chippewa Valley Center for
Economic Research & Development
University of Wisconsin-Eau Claire
Overview
Introduction
USDA Fresh Fruit & Vegetable Program
2008-09 Evaluation
– Morning Snack
2009-10 Evaluation
– Daily Snack Track
– Incentives & Reminders
Questions and Discussion
Introduction
Overweight and obesity among children (and adults).
Nearly 30% of youth are overweight/obese or at risk.
Significant health care concern, annual costs in the BILLIONS of $.
Introduction
Inadequate fruit and vegetable consumption (not 5-9 a day).
Lots of less healthy alternatives.
Introduction
Use school setting to address this very important issue.
USDA created Fresh Fruit and Vegetable Snack Program (FFVP)
to improve nutrition and help combat childhood obesity (2002).
University of Wisconsin-Eau Claire
The Fresh Fruit & Vegetable Program
The FFVP provides funding for students from selected schools to
receive a free fruit or vegetable (FV) snack 3-4 days a week for an
academic year.
Wisconsin first received FFVP funding in 2006 and the FFVP was
expanded to all 50 states plus the District of Columbia, Guam,
Puerto Rico and Virgin Islands through the 2008 US Farm Bill.
USDA
– http://www.fns.usda.gov/cnd/FFVP/FFVPdefault.htm
Wisconsin Department of Public Instruction
– http://dpi.wi.gov/fns/ffvp.html
The Fresh Fruit & Vegetable Program
The Fresh Fruit & Vegetable Program
University of Wisconsin-Eau Claire
2008-09 Evaluation Process
4 Western Wisconsin Elementary Schools
– 2 intervention and 2 matched control
– 4th and 5th grade students
– pre-test/post-test experimental design
Survey questions
– How many FV do students eat?
– Day In The Life Questionnaire (DILQ)
– Average daily F/V intake (measured over 3 days)
University of Wisconsin-Eau Claire
2008-09 Evaluation Process
Pre-test survey – late September 2008
Program began – early October 2008
Morning snack in classroom (3 or 4 days a week)
Post-test survey – late April 2009
Pre-test – Post-test change in FV intake
– DILQ, average daily F/V intake (measured over 3 days)
University of Wisconsin-Eau Claire
Pre-Test Fruit & Vegetable Intake
Students do not eat close to five-a-day (1.68).
Eat more fruits than veggies.
Nearly two-thirds of FV intake from school lunch.
Don’t eat FV at home in morning or afterschool snack.
No real baseline differences between intervention and control.
– Differences in school lunch menu on survey days (1.56 > 1.81)
Pre-Test Fruit & Vegetable Intake
Change in FV Intake at Morning Snack
School 1: watermelon (92%), cucumber (73%), apple (81%)
– Fruit: 2 out of 3 days (2/3)
Vegetable: 1 out of 3 days (1/3)
School 2: none, grapes (84%), carrots (62%)
– Fruit: 1 out of 3 days (1/3)
Vegetable: 1 out of 3 days (1/3)
Morning Snack Comparison
Free F/V morning snack (Tuesday survey, Monday recall)
– Intervention school 1: watermelon (92%)
– Intervention school 2: no free fv snack
Intervention school 1 has large fruit am snack
Intervention school 2 reverts to baseline fruit am snack
Limited program effect
University of Wisconsin-Eau Claire
FV Intake Distribution Shift
% of students reporting FV intake of >= 1.5
University of Wisconsin-Eau Claire
Regression Analysis
OLS regression examines whether earlier findings of a positive
program effect are robust to the inclusion of control variables.
The dependent variable = the change in average daily fruit and
vegetable intake between the pre-test and the second post-test.
Dummy variable for each intervention school (SCH), dummy
variables for the type of lunch typically eaten (LNCH), the
average daily fruit and vegetable intake on the pre-test (FV) and
dummy variables for gender, grade, and race (DEM).
University of Wisconsin-Eau Claire
Conclusion
The FFVP Works!
All else equal, the FFVP ↑ average daily FV intake among
intervention students by about 1/2 serving (compared to control).
Program effect is limited.
No evidence of ↑ FV intake without free access.
– Breakfast, after-school snack, dinner, night-time snack, non-FFVP days.
If students are provided with free FV with no alternatives
THEY EAT THEM!
University of Wisconsin-Eau Claire
2009-10 Research Evaluation
Four New Western Wisconsin elementary schools.
Pre-test/Post-test experimental design (intervention and control).
– Just entered survey data, no FV intake analysis yet.
One intensive intervention school*
Daily FV snack tracking*
University of Wisconsin-Eau Claire
Intensive Intervention
4th and 5th grade classrooms (4).
Free FV snacks served three days a week for afternoon snack.
1. Do students eat the free snacks served?
2. Do students bring FV snacks from home on non-FFVP snack days?
F&V Snack Track – Binder - Wall Chart
Teacher tracks daily FV snack behavior of students.
Wednesday & Friday are non-FFVP snack days.
University of Wisconsin-Eau Claire
Conclusion
Students typically eat the free FV snacks.
Fruits are more popular than vegetables.
Common items are more popular than new items.
No real evidence that students develop a liking for FV from
repeated exposure.
No real evidence of positive effect from forcing children to try
FV snacks.
Non-Free Snack Days
Six distinct periods of study (October 2009 – May 2010)
Nothing
Wall chart with stickers
Toy prizes
Positive modeling/praise
Homework reminders
Period One = 3 weeks, 6 days
Period Two = 3 weeks, 6 days
Period Three = 2 weeks, 4 days
Period Four = 2 weeks, 4 days
Period Five = 10 weeks, 20 days
Period Six 7 weeks, 14 days
Nothing
Chart,
Stickers
& Toys
Chart
&
Stickers
Nothing
Reminders &
Modeling/Praise
Reminders,
Modeling/Praise & Toys
Chart,
Stickers
& Toys
Nothing
Chart
&
Stickers
Nothing
Reminders,
Modeling/Praise & Toys
Reminders,
Modeling/Praise & Toys
Chart,
Stickers
& Toys
Nothing
Chart
&
Stickers
Nothing
Reminders,
Modeling/Praise & Toys
Reminders,
Modeling/Praise & Toys
Nothing
Chart,
Stickers
& Toys
Chart
&
Stickers
Nothing
Nothing
Reminders,
Modeling/Praise & Toys
University of Wisconsin-Eau Claire
Expanding the Reach of the FFVP
TOY PRIZES MATTER!
Most successful combined with POSITIVE MODELING & PRAISE!
A caring and dedicated teacher was able to get 70% of her
students to bring FV snacks from home on a regular basis.
University of Wisconsin-Eau Claire
Expanding the Reach of the FFVP
University of Wisconsin-Eau Claire
Expanding the Reach of the FFVP
Framework for schools to expand the reach of the FFVP beyond
the access to free FV provided as snacks in the classroom.
This incentive scheme is both feasible and affordable in terms of
time, resources and money….schools can do this.
And it seems to work effectively!
University of Wisconsin-Eau Claire
Future Work (2009-10)
We are excited to analyze the 2009-10 data further to see if the
students in this intervention school increased FV intake more than
the other intervention school (with the FFVP, but no incentives)
Perhaps we will find that giving students incentives to bring FV
snacks from home on their own will also lead to these students
eating more FV at other times (morning, afterschool snack).
We are HOPEFUL, but not DELUSIONAL.
Questions?
Eric Jamelske & Lori Bica
[email protected], [email protected]
University of Wisconsin-Eau Claire
Free and Discount Coupons
34 families of students from the two intervention schools were given
5 free coupons each redeemable for $2 free FV (valid one week).
Same families also given 3 discount coupons each redeemable for
$2 off a $5 FV purchase (valid the following week).
Coupon redemption rates.
DILQ given 3 days during week that free coupons were valid.
Did students that redeemed free coupons show increased FV intake
compared to control group from same schools?
Free and Discount Coupons
Nearly every family took advantage of the free coupons which
required nothing more than a trip to the grocery store to buy the FV.
27 families redeemed all free coupons (79.4%).
Most families did not make use of the discount coupons (15.7%)
which would have required them to spend some of their own money
in addition to going to the grocery store.
University of Wisconsin-Eau Claire
Conclusion
Small, but significant increase in FV intake among free coupon
students compared to control students.
Limited to FRUIT: breakfast, dinner and night-time snack.
Increases occurred when parents were likely home.
Schools cannot afford to use free FV coupons to expand the reach of
the FFVP into the home.
This research could be applied to other USDA programs
-WIC and Food Stamps (more on this later).
University of Wisconsin-Eau Claire
Future Work (2010-11)
Not so much FFVP evaluation.
More free FV coupons.
4th grade classes in two area elementary schools will be given $15
worth of free FV coupons each week for four consecutive weeks.
Baseline FV intake survey followed by surveys in the 2nd and 4th
weeks of coupons, followed by surveys in the 2nd and 4th weeks
after coupons are taken away.
Coupon redemption rates, increased FV intake.