Participants Seventy-six 4th and 5th grade students from one Wisconsin FFVP school participated in...
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Transcript of Participants Seventy-six 4th and 5th grade students from one Wisconsin FFVP school participated in...
ParticipantsSeventy-six 4th and 5th grade students from one Wisconsin FFVP school
participated in the portion of this study analyzing fruit and vegetable intake. There
were two 4th grade classes and two 5th grade classes with an average age of 9.6
years old. There were approximately equal numbers of male (48.4%) and female
(51.6%) students; however, there were more 4th graders (59.2%) than 5th graders
(40.8%). Just over 95% of students were Caucasian/White, while 3.2% were
African American/Black and 1.6% were Hispanic/Latino/Latina. All demographic
information was provided by school administration.
In the analysis of other behaviors related to fruit and vegetable
consumption, two 4th grade and two 5th grade classes from a matched control
school were added to the study. The sample was restricted to students who were
present on both the pretest and posttest survey days. The resulting sample
consisted of 169 students, 62 from the program school and 107 from the control
school. Program and control samples for this analysis were similar with respect to
gender and age distributions.
BackgroundMost children and adolescents in the United
States consume less than recommended amounts of
fruit and vegetables (1, 2). Experts and advocates
recognize the school environment as a fundamental
setting for providing children access to nutritious food
and opportunities to learn about the importance of
healthy eating (3, 4, 5, 6). The United States
Department of Agriculture (USDA) initiated its Fresh
Fruit and Vegetable Program (FFVP) in 2002 as part of
a broad effort to address poor nutrition and rising
obesity rates among children.
The FFVP began as a pilot and was expanded in
2004 and 2006, eventually becoming nationwide in
2008. This program allocates funding for selected
schools to provide students with free fresh fruit and
vegetable snacks outside of school lunch. The program
aims to identify and develop best practices for
increasing consumption of fruit and vegetables in
schools to improve nutrition and combat childhood
obesity. The history and implementation of the FFVP
is described in more detail elsewhere (7, 8, 9, 10).
The Impact of the USDA Fresh Fruit & Vegetable Program on Children’s Consumption and Other Related Behaviors
Students: Judy Dickinson, Stephen Fisher, Lainee Hoffman, Stephanie Mabrey, Kevin Reinhold, April Ross and Laurelyn Wieseman
Faculty Mentors: Eric Jamelske (Economics) and Lori Bica (Psychology)
We gratefully acknowledge generous funding support from the UWEC Office of Research and Sponsored Programs, Blugold Commitment, Xcel Energy of Eau Claire, and Northwestern Bank of Chippewa Falls.
We would also like to thank Dr. April Bleske-Rechek, Dr. Jeffrey Goodman, Dr. William Klish, and the many teachers, administrators and food service personnel in the two participating schools.
The hypothesis that students would consistently eat the free snacks served to them is supported by current findings. Table 1 shows that
on average, the students ate the entire snack nearly 75% of the time when fruit was served and just over 50% of the time when vegetables were
served. In contrast, students did not even try the snack just 3.6% and 10.2% of the time when fruit and vegetables were served respectively.
Figure 2 shows students ate a variety of fruit at very high rates with pear and blueberries being the least preferred. Figure 3 shows much
lower rates of eating the entire snack and somewhat higher rates of not trying the snack when vegetables were served. Carrots and cucumber
were eaten the most, while jicama, cauliflower, sweet potato and radishes were eaten the least.
The hypothesis that program students would exhibit positive change in other behaviors related to fruit and vegetable consumption
compared to control students was also supported by current findings. Repeated measures ANOVA analysis indicated that average fruit and
vegetable behavior among program students at the posttest (M = 2.94, SD = .65) was higher than at the pretest (M = 2.50, SD = .72), t(61) =
6.33, P < .001. For the control students, average fruit and vegetable behavior at the posttest (M = 2.38, SD = .73) was not significantly
different than the pretest (M = 2.36, SD = .71), t(106) = .266, P = .791.
Figures 4 – 11 provide a more detailed look at responses from program students to individual items on this survey. Program students
noticeably moved from reporting never and sometimes towards often and always for 7 of the 8 items measuring student behavior related to fruit
and vegetable consumption. The only exception was choosing fruit as a snack over chips, cookies, and candy. Changes are most noticeable for
trying new fruit and vegetables in school, with the percent of students reporting they would often or always nearly doubling from 46.8% to
87.1% for fruit and more than doubling from 33.9% to 74.2% for vegetables. Also noteworthy is the rising percent of students reporting they
often or always ask their parents to buy fruit and vegetables which increased by nearly one-third from 50.0% to 64.5% for fruit and almost
doubled from 19.4% to 37.1% for vegetables.
There are limitations to the present study that could be addressed by future research. First, analyses of the impact of the FFVP would
benefit from using larger, randomized samples. Second, although we find positive change in behaviors related to fruit and vegetable
consumption for program students, what students report doing in a variety of circumstances may or may not reflect actual behavior. For
example, since the FFVP exposed students to a variety of fruit and vegetables, including many new or unfamiliar items, and given evidence
that students typically eat snacks served through the FFVP, it is reasonable to assume the reported rise in trying new fruit and vegetables at
school accurately reflects students’ behavior. Reported increases in trying new fruit and vegetables at home and asking parents to purchase
fruit and vegetables suggests the influence of the FFVP has reached into the home. However, we have no corroborating evidence for these self-
reported behavior changes. Nevertheless, the overall consistent pattern of positive behavior change related to fruit and vegetable consumption
found in this study, both at school and in the home, is encouraging.
Overall, the FFVP increases availability and accessibility and provides repeated exposure to a variety of fruit and vegetables for
participating students resulting in positive changes in intake as well as other behaviors related to fruit and vegetable consumption. Further
advances in the study of the FFVP will require collaborative partnerships between researchers and school staff to design more thorough
evaluations. This could include providing students with choices between fruit, vegetables and other alternatives to observe their behavior.
Student behavior could also be observed as they are actively encouraged to bring fruit and vegetables from home for school snack on non-
FFVP days. Such efforts would also benefit from data collection in the home via parent survey or even direct home observations.
Previous ResearchThe research literature examining the
effectiveness of the FFVP is small and still developing
(11, 12, 13, 14). Given the sizeable resources
committed to funding the FFVP, more information is
needed to understand the successes, limitations, and
potential in meeting its stated goals. Previous research
in Wisconsin found a significant increase in fruit and
vegetable intake for participating students during
school snack compared to control students (14).
These results were based on intake measured at
three points in time over three consecutive days in each
period. This research can be improved upon in two
ways which are undertaken in the present study. First,
more detailed fruit and vegetable consumption data
would be desirable. Second, it would be useful to
know if any other behavioral changes accompanied the
increased intake of fruit and vegetables for
participating students.
Current ResearchIn this study, we investigated the impact of the
2009-10 FFVP on intake and other behaviors related
to fruit and vegetable consumption among Wisconsin
4th and 5th grade students. Consumption of fruit and
vegetables served through the FFVP was observed and
recorded by teachers over 95 days. We hypothesized
that students would consistently eat the free snacks
served to them. Analyses of other behaviors related to
fruit and vegetable consumption compared pretest and
posttest data from an 8 item survey between program
and control students. We hypothesized that program
students would report favorable behavior changes
related to fruit and vegetable consumption compared
to control students.
Data Collection Fruit and vegetable intake data were collected only at the program school.
Teachers in each of the four classrooms were trained to observe and record the rate
at which students ate the fruit and vegetable snacks served through the FFVP.
Teachers were provided a binder of weekly calendar pages with the name of each
student. On each day a free fruit or vegetable was served, teachers recorded
student behavior as absent, ate none, tried, ate half or ate all. In all, student
behavior during afternoon snack was observed and recorded on 95 FFVP days.
Data for other behaviors related to fruit and vegetable consumption were
collected at both the program and control schools. Students completed an 8 item
pretest survey before the FFVP began and a comparable posttest survey after six
months. There were four questions about fruit: trying new fruit offered at home;
trying new fruit offered at school; choosing fruit as a snack instead of chips,
cookies or candy; asking parents to buy fruit when food shopping. There were four
parallel questions for vegetables. Response options for all 8 questions were 1 =
never, 2 = sometimes, 3 = often, and 4 = always. Behavior scores were calculated
by taking the average across all 8 items with higher scores representing more
positive behavior. Chronbach alphas calculated at the pretest (α =.85) and at the
posttest (α =.88) indicate this survey maintains good internal consistency.
All surveys were conducted with paper and pencil in classrooms with
assistance from teachers and trained student research assistants. Instructions were
read aloud to the entire class while others circulated through the room helping
students understand and answer the questions.
Procedure The FFVP began in the program school in October 2009 with free fruit and
vegetable snacks served to students three days per week. Fruit was served 66
times and vegetables were served 29 times. Figure 1 shows the variety of fruit
and vegetables as well as the number of times each item was served during the
study. The snacks were prepared in the school kitchen and distributed to
classrooms for an organized afternoon snack shared by students and teachers.
Students were allowed to bring snacks from home to eat in the afternoon on non-
FFVP snack days, as was the case before the FFVP began.
Introduction Method Results & Discussion