Abstract
Abstract
Background:
With the continued threat of childhood obesity, many public health intervention efforts focus on school settings. The current study sought to document administrator attitudes regarding obesity and interest in improving relevant school practices (i.e., nutrition and physical activity) in elementary schools.
Methods:
Mail-back surveys were used to gather data from public and private elementary schools during the 2006–2007, 2007–2008, 2008–2009, and 2010–2011 school years. In each year, a different set of items pertaining to administrator attitudes was included. Numbers of responding schools annually ranged from 259 to 336 private schools, and from 578 to 748 public schools.
Results:
The vast majority of elementary school administrators (>90%) agreed that schools can play a role in addressing childhood obesity, physical education improves a variety of academic outcomes, and they were interested in improving practices at their school. Concern about childhood obesity and perceiving that schools can play a role in addressing obesity were both associated with more interest in improving school practices. However, only one-third of administrators agreed that parents were interested in participating in improving nutrition and physical activity practices, suggesting opportunities for efforts to improve collaboration.
Conclusions:
Administrators are generally very supportive of school-based efforts to improve nutrition and physical activity practices and see the value in doing so. Given the amount of time children spend in school, schools are an essential venue for efforts to address childhood obesity.
Introduction
Theoretical models that were initially developed to understand behavior change among individuals can also inform efforts to understand factors contributing to change in organizational practices. Administrators are key stakeholders in school-based public health efforts, and, as such, understanding their receptiveness to change, as well as other attitudinal factors, is important for school-based obesity prevention efforts. Furthermore, it has been suggested that school administrators are “microenvironmental agents” who serve as leverage points for effecting changes in the school environment.13,14
At the individual level, theoretical models that examine individuals' willingness to adopt preventive health behavior include long-standing and well-studied efforts to understand the interplay between attitudes and behaviors. For example, the Theory of Reasoned Action 15 and its extension as the Theory of Planned Behavior 16 both emphasize the importance of behavioral intentions (plans to engage in change), as well as attitudes such as the perceived value of the behavior, perceived behavioral control, and subjective norms (i.e., perceptions of what others think of the behavior). As applied to nutrition and physical activity (PA), such attitudes could involve perceptions of what other stakeholders believe (i.e., parent support), perceived importance or threat of childhood obesity, and attitudes about whether schools are an appropriate venue for prevention, as well as how much of an impact schools can have on children's health. Similarly, other models such as the Health Belief Model17,18 emphasize the importance of perceived severity of, and susceptibility to, a certain condition (i.e., childhood obesity). Given the importance of theory in understanding health practices, the current study examined a variety of attitudinal factors among school administrators, which were selected based on theoretical models.
Despite increasing attention to obesity-prevention efforts in the school setting, few studies have assessed administrator beliefs, attitudes, or perceptions among large national samples of administrators. Qualitative research among administrators and teachers at five Boston middle schools that participated in the Planet Health 19 intervention (addressing nutrition and PA) indicated widespread support for improving school practices. 20 Participants also noted that classroom nutrition education interventions were not consistent with the practices in the lunch program (e.g., serving fried potatoes), and that difficulty in changing the school meals was a key barrier to promoting healthier behavior. 20
Survey research among a large group of middle school teachers (n=490) and parents of middle school students (n=350) in Minnesota documented agreement regarding the importance of good nutrition practices in schools. 21 Teachers acknowledged that nutrition affects readiness to learn (92% agreed), that a healthy school environment is important (97%), and that teen eating habits should be a school priority (72%); however, few teachers believed that schools give adequate attention to nutrition (31%). The work was done in 1999, 21 prior to the federal wellness policy mandate 22 and the dramatic increase in research and policy attention regarding childhood obesity that occurred in the first decade of the 2000s; thus, attitudes may have changed since that time.
In 2007, during the early stages of adoption of the federal wellness policy mandate, Action for Healthy Kids and other research partners surveyed 2400 stakeholders relevant to school wellness, including school superintendents, school board members, principals, teachers, and food and nutrition staff. 23 Results demonstrated discrepancies in stakeholder perceptions regarding a variety of topics. For example, 80% of superintendents and 90% of food service professionals believed that schools were already providing children with appealing and healthy beverages and limiting unhealthful options, whereas only one-third of teachers, parents, and community health professionals agreed. 23 Approximately half of superintendents and principals agreed that schools were providing quality physical education (PE), whereas 80% of school physical education professionals believed that improvements were needed. 23 Such research highlights the importance of engaging a variety of stakeholders in understanding areas in need of change and in marshalling cooperative efforts to promote such change.
The current study used nationally representative data from large samples of public and private elementary schools in the United States during the 2006–2007, 2007–2008, 2008–2009, and 2010–2011 school years to examine school administrator attitudes regarding childhood obesity and relevant behaviors.
Methods
Procedure
Data on administrator attitudes were gathered via mail-back surveys among nationally representative samples of public and private elementary schools in the contiguous United States. Surveys were mailed to school principals during the spring (second half) of each school year, from 2006–2007 to 2010–2011 (data from 2009–2010 are not used here because no attitude items were included on that survey). An honorarium of $100 was offered to the school or survey respondent for returning the survey. Reminders were made by telephone, e-mail, and mailings. The Institutional Review Board at the University of Illinois at Chicago approved the study protocol and survey materials with a waiver of written documentation of informed consent, as consent was implied by return of the survey.
Sampling and Weighting
School samples for each year were developed at the Survey Research Center at the Institute for Social Research at the University of Michigan, based on public-use datasets from the National Center for Education Statistics (NCES). Because elementary schools vary in grade level (e.g., kindergarten to grade 2, grades 1–6), all schools were required to include a 3rd grade. Weights were developed to allow for inference to elementary schools across the United States; separate weights were developed for public and private schools. After data collection was complete, weights were adjusted for potential school nonresponse bias.
Participants
Demographic characteristics of schools in the sample are presented in Table 1. School characteristics were obtained from the NCES datasets 24 (Common Core of Data for public schools and Private School Survey for private schools) for the corresponding year of data collection. Data on the percentage of students eligible for free or reduced-price meals (FRPM) was available only for public schools, but not for private schools. Information on the role of the survey respondent was gathered, but no additional personal details (e.g., age, gender) were gathered from respondents. In many cases, multiple respondents contributed to the completion of the survey, which included items on food and nutrition practices, PE, and other school wellness topics.
Demographic Characteristics of Participating Elementary Schools, 2006–2007, 2007–2008, 2008–2009, 2010–2011 School Years a
Sample size is unweighted; percentages are weighted to the school level.
Percentages sum by column to 100 within category, but due to rounding some may not sum to exactly 100%.
p value associated with chi-squared test to compare public versus private schools.
Not available for private schools; this variable not included as covariate in subsequent analyses.
ref, reference category; SE, standard error.
In each year, the recruitment sample included approximately 1070 public schools and 400 private schools. Sampled schools that had closed or did not include a 3rd grade were considered ineligible and were excluded from response rate calculations. The number of responding schools and response rates across the 4 years (2006–2007, 2007–2008, 2008–2009, and 2010–2011) were as follows, respectively: for private schools, n=259 (66.2%), n=336 (84.4%), n=297 (76.2%), and n=289 (73.4%); and for public schools, n=578 (54.6%), n=748 (70.6%), n=641 (61.8%), and n=598 (57.4%).
Variables
The survey items were developed by researchers based on reviews of the literature, other relevant work, and development of conceptually relevant attitude factors. Due to limited space on the survey instrument, questions were replaced and/or modified over the study period. Thus, each item appeared for 1 year only, and examination of potential change in attitudes over time is not possible with these data. Exact wording of all survey items (and year of data collection) is given in Table 2. Respondents were asked to indicate the degree to which they agreed with each statement, with response options of 1=strongly disagree, 2=disagree, 3=agree and 4=strongly agree.
Percentage of Elementary Schools Where Administrator Agrees with Each Statement (% Strongly Agree + % Agree)
Surveyed in 2006–2007, n=578 public schools, 259 private schools.
Surveyed in 2007–2008, n=748 public schools, 336 private schools.
Surveyed in 2008–2009, n=641 public schools, 297 private schools.
Surveyed in 2010–2011, n=598 public schools, 289 private schools.
SA, strongly agree; A, agree.
Analyses
Analyses were conducted in STATA/SE (version 12.0, StataCorp, College Station, TX, 2011) with the svy command to account for sampling stratum and for clustering of schools within districts and states. To control for school characteristics, statistical tests for differences in attitudes by school type involved examining the odds ratio for school type (public versus private) in logistic regressions that controlled for school demographic characteristics. Each characteristic (e.g, region) was entered as a set of dummy-coded variables (see Table 1 for coding and referent categories).
Results
Sample Characteristics
Demographic characteristics of the schools from which surveys were returned did not vary significantly across years (as tested by chi-squared analysis, all p values>0.05); however, the characteristics of responding public schools differed significantly from those of private schools. As shown in Table 1, private schools were more likely to have predominantly white student populations, were more likely to be located in urban or suburban areas, and had smaller student enrollments. They were also fairly evenly distributed across the four contiguous census regions of the United States, whereas public schools had slightly higher representation in the South as compared to the Northeast.
Respondent Characteristics
The last page of the survey included blank lines where respondents were asked to write their role at the school, as well as the role of any other individuals who contributed to the survey. At most schools (64.6%), only one individual completed the survey; at 31.7% of schools, two individuals completed the survey, and at 3.7% of schools, three or more individuals contributed to the survey. At most schools (88.8% of public schools, and 87.4% of private schools), the survey was completed by a principal or assistant principal, or staff with another variant of an administration title (e.g., school director, head of school). Where the respondent was not an administrator, the roles most commonly reported were: Secretary/office manager, cafeteria manager, PE teacher, or nurse. Given that the majority of surveys were completed by administrative staff, for parsimony, hereafter respondents are referenced as “administrators.”
Administrator Attitudes
Table 2 presents the percentage of administrators agreeing with each item, as well as the breakout of “strongly agree” and “agree” within that total percentage. As shown in Table 2, the vast majority of administrators (>90%) agreed or strongly agreed with all of the attitudes assessed, with the exception of the attitudes regarding perceived parent interest in participating in improving nutrition practices and PA practices at school, which were each endorsed by approximately one-third of respondents, and concern about student overweight, which was endorsed by approximately three-fourths of respondents.
A series of multivariate logistic regression models was used to examine whether strong administrator agreement with attitude items varied by school demographic characteristics. Due to the frequency of responses—with a majority of respondents endorsing either “agree” or “strongly agree” for most of the items—to meet the requirements for adequate variability in the outcome variable for logistic regression analyses, the outcome variables were collapsed to examine “strong agreement” (i.e., a binary variable of 1=“strongly agree” versus 0=“agree,” “disagree,” or “strongly disagree”). However, because there was less administrator agreement with the two items regarding perceived parent interest in improving school practices than for the other topics, these two regression models predicted any agreement, either “strongly agree” or “agree” (=1) versus “disagree” or “strongly disagree” (=0) (see note in Table 3). As shown in Table 3, while there were generally few demographic differences, some notable patterns emerged. Administrators at schools in towns and rural areas were less likely than administrators at urban schools to perceive that parents were interested in improving nutrition practices at school. This effect held up even while also accounting for student race, which was also significantly associated with these attitudes. Administrators at schools with higher representation of white students were more likely to perceive that parents were interested in improving nutrition and physical activity practices. There were no significant differences in attitudes of administrators at public versus private schools other than the set of three items assessing the perceived value of PE, which were all more likely to be strongly endorsed by administrators in public schools than in private schools. The regression models presented in Table 3 did not control for school socioeconomic status (SES), because student eligibility for FRPM was only available for public schools, not private schools. However, the regression models were recomputed using only public schools, with FRPM included as a covariate (results not shown in tables). FRPM was only associated with three outcomes: Administrators at lower-SES schools (i.e., higher FRPM eligibility) were more concerned about children being overweight [odds ratio (OR)=3.37, 95% confidence interval (CI)=1.03, 11.05, p<0.05] and more interested in improving school PA practices (OR=5.18, 95% CI=1.70, 15.77, p<0.01), but less likely to perceive that parents were interested in improving nutrition practices (OR=0.27, 95% CI=0.10, 0.71, p<0.01).
Odds Ratios from Multivariate Logistic Regression Models Examining Differences in Administrator Attitudes a by School Characteristics
Note: Regression models did not include percentage of students eligible for free/reduced-price meals because those data were unavailable for private schools.
Unless otherwise noted, attitude outcomes coded 1=strongly agree, versus 0=strongly disagree, disagree or agree.
Due to response characteristics, this outcome coded 1=agree or strongly agree, versus 0=disagree or strongly disagree.
p<0.05.
p<0.01.
p<0.001.
Finally, two additional logistic regression models (results not shown in tables) were computed to predict strong interest in promoting improved nutrition and PA practices at schools, accounting for all demographic covariates as noted above, including two attitude variables: Strong perceived concern about childhood obesity and strong agreement that schools can play a role in addressing childhood obesity. These models used data from the 2006–2007 school year. Again, administrator attitudes did not vary by school type nor by school demographics, but administrators were significantly more likely to be interested in improving nutrition practices where they also reported being concerned about children being overweight at their school (OR=21.15, 95% CI=10.93–40.93, p<0.001), and where they believed that schools can play a role in addressing childhood obesity (OR=8.86, 95% CI=5.76–13.63, p<0.001). Likewise, administrator interest in improving PA practices was also associated with both of these variables, respectively (OR=26.23, 95% CI=13.02–52.82, p<0.001 and OR=6.84, 95% CI=4.40–10.64, p<0.001).
Discussion
Results showed widespread administrator agreement with a variety of statements regarding childhood obesity. Importantly, most administrators recognized the value of quality PE in promoting outcomes, including improved concentration, better academic performance, and fewer discipline problems. Prior research has documented the perception among public elementary school administrators that competing time demands were a barrier to implementing PE (23.4% of administrators agreed during 2006–2009), as were financial constraints (16.6% agreed). 25 Furthermore, PE not being a school priority has been associated with significantly lower likelihood of schools offering 150 minutes of PE per week, 25 which is the amount recommended by the National Association for Sport and Physical Education (NASPE) 26 and the CDC. 27 Clearly, a variety of barriers to implementing PE (e.g., financial issues, scheduling demands) still remain, but awareness of the value of PE for improving academic outcomes does not appear to be lacking among administrators. Nevertheless, public school administrators were more likely to strongly agree with the value of PE than were private school administrators; this is consistent with data showing that private school students are less likely to receive adequate PE class time than are public school students. 28 Thus, there may be a need for further education among private school administrators and school board members as to the value of hiring professionally trained and certified staff, as well as technical support for implementing quality PE programs.
As of the 2006–2007 school year, approximately three-quarters of all school administrators agreed or strongly agreed that they were concerned about students at their school being overweight, with 20.9% indicating strong agreement on this issue. Although not released until 2008 (after the 2006–2007 survey period), nationally representative estimates for 2003–2006 showed that during that time period, 33.3% of children ages 6–11 years were overweight or obese. 29 Given the documented high prevalence of childhood obesity throughout the early 2000s, virtually all administrators worked in schools where obesity affected at least some of their students; thus, one might expect that more than one in five administrators would have been concerned about obesity. Considering the importance of concern in predicting health behavior practices, further efforts to inform school personnel regarding obesity prevalence, consequences, and prevention may be warranted. Indeed, regression models showed that where administrators reported concern about obesity affecting their students, they were also more interested in improving school practices. Likewise, research has shown that parents who are more concerned about obesity are more likely to engage in healthier behaviors, such as limiting screen time, increasing PA, and improving nutrition, 30 thus demonstrating the link between health concern and behaviors.
Yet another construct that appears in many theoretically motivated investigations of health behavior is “perceived efficacy” (a.k.a., perceived behavioral control15,16) and this dimension—perceiving that schools have an important role to play in addressing obesity—was highly associated with administrators' interest in implementing changes. However, it is important to note that administrator interest in implementing changes may not necessarily be sufficient to promote change. Attention to school nutrition and PA practices has increased dramatically in recent years, and following the federal wellness policy mandate that took effect at the start of the 2006–2007 school year, 22 nearly all US public school districts developed wellness policies to address nutrition and PA. 31 However, the policies tended to be weak and fragmented and were not necessarily implemented at schools. 31 Furthermore, nationwide data from public elementary schools showed very little change in either the school food environment 32 or PE practices and PA opportunities 33 from 2006–2007 to 2009–2010. Thus, awareness may not be sufficient to create change. The 2007 school stakeholder survey coordinated by Action for Healthy Kids found that two-thirds or more of school board members, administrators, and teachers believed that schools do not have adequate resources to improve school wellness. 23 Principals noted the key barriers to school wellness as being competition from other school priorities (63% agreed), lack of time in the school day (54% agreed), and lack of resources (46% agreed). 23 Among 112 high school administrators nationwide, the most common challenges reported with regard to policy implementation in 2009 were lack of time or staff (37%), cost (33%), or implementation not being a priority (26%). 34 Thus, additional efforts and support, including financial resources, are essential for addressing implementation barriers.
For many of the attitude items assessed here, data were gathered during 2006–2007, approximately 6 years ago. Since that time, media attention regarding childhood obesity, as well as policy interventions such as the enactment of state laws pertaining to school nutrition and PA practices, 35 and federal regulations (i.e., the federal wellness policy mandate, 22 and the Healthy, Hunger-Free Kids Act of 2010, 36 which required improvements in school meals and other school food practices) reflect increased attention to the childhood obesity epidemic. It is possible that administrator attitudes have changed since the collection of these data. The wording of the survey item regarding the perception that “schools can play a role in addressing childhood obesity” changed slightly between the 2006–2007 and 2010–2011 school year item (i.e., removing reference to “[the problem of] childhood obesity”), thus formal statistical analyses were not conducted to test changes over time. Nevertheless, the percentage of all elementary school administrators strongly agreeing that schools can play a role in addressing childhood obesity increased from 40.8% to 53.1%. This may be an artifact of the slight change in wording of the item, but it may also reflect strengthening of beliefs regarding the importance of the school environment. Encouragingly, the vast majority of administrators (97.6% in 2010–2011) strongly agreed or agreed that schools can play a role in addressing childhood obesity.
Although subject to the typical limitations of survey methodology (e.g., response bias, social desirability bias), the use of a large nationally representative sample provides useful information to characterize the school environment nationwide and to provide insights into school administrators' attitudes and potential receptivity to intervention efforts. However, it is important to note that these data are cross-sectional, and thus it would be imprudent to conclude that changing certain attitudes will increase interest in implementing changes.
Conclusions
Given that most models of health behavior change posit that attitudes precede behavior, it may be reasonable to speculate that further educating school personnel about the issue of childhood obesity—as well as emphasizing the important role that schools can play in addressing childhood obesity—could promote further interest in and willingness to adopt changes in nutrition and PA practices. Suggested changes will be more compelling where based on solid science or credible recommendations from national authorities (e.g., competitive foods limits identified by the IOM; frequency and duration of PE recommended by NASPE and CDC). Nevertheless, financial constraints and time demands require balancing multiple priorities, and school administrators have many important issues to attend to in addition to student health, such as academic achievement and student safety. Financial support and technical resources for implementation will be essential in efforts to promote healthier school environments.
Footnotes
Acknowledgments
We thank Anna Sandoval, MPH, for assistance with the collection of survey data, and all of the school administrators who participated in the project. Research support was provided by the Robert Wood Johnson Foundation.
Author Disclosure Statement
The authors have no conflicts of interest to declare.
