Current Organizations / Institutes

The organizations/institutes from the scholar's latest article

Previous Organizations / Institutes

The organizations / institutes from the scholar's other articles in the past ten years


John Worobey has a total of 42 co-authors. Here are the top co-authors by number of shared publications:


Latest Publications

  • Open Access

    Randomized Controlled Trial Outcomes for HomeStyles-2, an Online Obesity Prevention Program for Families with Children in Middle Childhood

    by Carol Byrd-Bredbenner, Angelica A. Pozzoli, Kaitlyn M. Eck, John Worobey, Karla Pagan Shelnutt, Melissa D. Olfert, Virginia Quick

    Background: Parents are children’s primary role models, are food and physical activity gatekeepers, and create the home structure/lifestyle environment. Thus, parents strongly influence children’s weight-related behaviors and have the opportunity to cultivate a “culture of health” within the home. Methods: The aim of the HomeStyles-2 (also called HomeStyles-Child) RCT was to determine whether this online, novel, age-appropriate, family intervention enabled and motivated the 131 systematically randomly assigned by computer parents of children in middle childhood (ages 6 to 11) in the experimental condition to shape home environments and healthy weight-related lifestyle practices to be more supportive of optimal health and reduced obesity risk in middle childhood youth more than the 134 counterparts assigned to the attention control condition. Results: This RCT demonstrated the feasibility of online delivery of a health promotion intervention to parents of children in middle childhood, which may inform the development of interventions targeting other age groups and health outcomes. Results indicate the HomeStyles-Child intervention improved healthy-weight-related behavior cognitions, which are predictors of behavior change, of the experimental group. Additionally, improvements in experimental parent and child health-related behaviors were observed. These improvements occurred during a time when families faced unprecedented and extraordinary economic and social stresses associated with the COVID-19 pandemic. Conclusions: HomeStyles-Child is one of the few interventions for families with middle childhood youth. It has the potential to help ameliorate obesity in middle childhood youth and, by extension, other family members.


  • Open Access

    Feeding Sensitivity at 3-Months Predicts Parental Feeding Style at 3-Years

    by John Worobey

    Infant Feeding Practices with Oral Health Implications among Suburban Mothers of Tanzania


  • Open Access

    A Socio-Ecological Examination of Weight-Related Characteristics of the Home Environment and Lifestyles of Households with Young Children

    by Virginia Quick, Jennifer Martin-Biggers, Gayle Alleman Povis, Nobuko Hongu, John Worobey, Carol Byrd-Bredbenner

    Home environment and family lifestyle practices have an influence on child obesity risk, thereby making it critical to systematically examine these factors. Thus, parents (n = 489) of preschool children completed a cross-sectional online survey which was the baseline data collection conducted, before randomization, in the HomeStyles program. The survey comprehensively assessed these factors using a socio-ecological approach, incorporating intrapersonal, interpersonal and environmental measures. Healthy intrapersonal dietary behaviors identified were parent and child intakes of recommended amounts of 100% juice and low intakes of sugar-sweetened beverages. Unhealthy behaviors included low milk intake and high parent fat intake. The home environment’s food supply was found to support healthy intakes of 100% juice and sugar-sweetened beverages, but provided too little milk and ample quantities of salty/fatty snacks. Physical activity levels, sedentary activity and the home’s physical activity and media environment were found to be less than ideal. Environmental supports for active play inside homes were moderate and somewhat better in the area immediately outside homes and in the neighborhood. Family interpersonal interaction measures revealed several positive behaviors, including frequent family meals. Parents had considerable self-efficacy in their ability to perform food- and physical activity-related childhood obesity protective practices. This study identified lifestyle practices and home environment characteristics that health educators could target to help parents promote optimal child development and lower their children’s risk for obesity.


  • Open Access

    HomeStyles, A Web-Based Childhood Obesity Prevention Program for Families With Preschool Children: Protocol for a Randomized Controlled Trial

    by Carol Byrd-Bredbenner, Jennifer Martin-Biggers, Mallory Koenings, Virginia Quick, Nobuko Hongu, John Worobey

    The home environment is where young children spend most of their time, and is critically important to supporting behaviors that promote health and prevent obesity. However, the home environment and lifestyle patterns remain understudied, and few interventions have investigated parent-led makeovers designed to create home environments that are supportive of optimal child health and healthy child weights. The aim of the HomeStyles randomized controlled trial (RCT) is to determine whether the Web-based HomeStyles intervention enables and motivates parents to shape the weight-related aspects of their home environments and lifestyle behavioral practices (diet, exercise, and sleep) to be more supportive of their preschool children's optimal health and weight. A rigorous RCT utilizing an experimental group and an attention control group, receiving a bona fide contemporaneous treatment equal in nonspecific treatment effects and differing only in subject matter content, will test the effect of HomeStyles on a diverse sample of families with preschool children. This intervention is based on social cognitive theory and uses a social ecological framework, and will assess: intrapersonal characteristics (dietary intake, physical activity level, and sleep) of parents and children; family interpersonal or social characteristics related to diet, physical activity, media use, and parental values and self-efficacy for obesity-preventive practices; and home environment food availability, physical activity space and supports in and near the home, and media availability and controls in the home. Enrollment for this study has been completed and statistical data analyses are currently underway. This paper describes the HomeStyles intervention with regards to: rationale, the intervention's logic model, sample eligibility criteria and recruitment, experimental group and attention control intervention content, study design, instruments, data management, and planned analyses.


  • Open Access

    Improving research reporting to avoid waste in psychological research

    by Fiona Alderdice, James Newham, John Worobey

    (2016). Improving research reporting to avoid waste in psychological research. Journal of Reproductive and Infant Psychology: Vol. 34, No. 4, pp. 327-328.

  • Open Access

    Development of the Intervention Materials for the HomeStyles Obesity Prevention Program for Parents of Preschoolers

    by Jennifer Martin-Biggers, Kim Spaccarotella, Colleen Delaney, Mallory Koenings, Gayle Alleman, Nobuko Hongu, John Worobey, Carol Byrd-Bredbenner

    Home environment is key to the development of obesity-preventing behaviors during childhood, yet few resources help preschool parents address factors at home associated with obesity risk. This paper describes creation of materials for an in-home intervention (HomeStyles) with this population. An advisory group of stakeholders and target audience members determined salient factors affecting childhood obesity to address in-home and developed program materials. The Social Cognitive Theory, Faith’s Core Behavior Change Strategies to Treat Childhood Obesity, Adult Learning Theory and motivational interviewing techniques guided development of 12 guides targeting strategies parents can use to shape the home environment. Interviews were conducted to determine effectiveness of the guides. Cognitive testing of guide design (n = 251) and content (n = 261) occurred in English and Spanish in New Jersey and Arizona with parents and home visitation staff who would present the guides. Interviews investigated perceptions of content usefulness and parent comprehension. Findings were also examined in light of theoretical underpinnings. Both home visitation staff and parents felt the guides were very readable and useful. Parents appreciated use of motivational interviewing techniques and Adult Learning Theory. Current research is testing these guides through an in-home, randomized control trial.


  • Open Access

    Translating it into real life: a qualitative study of the cognitions, barriers and supports for key obesogenic behaviors of parents of preschoolers

    by Jennifer Martin-Biggers, Kim Spaccarotella, Nobuko Hongu, Gayle Alleman, John Worobey, Carol Byrd-Bredbenner

    Little is known about preschool parents’ cognitions, barriers, supports and modeling of key obesogenic behaviors, including breakfast, fruit and vegetable consumption, sugary beverage intake, feeding practices, portion sizes, active playtime, reduced screen-time, sleep and selection of child-care centers with characteristics that promote healthy behaviors. Thus, the purpose of this study was to examine these factors via survey and focus groups among 139 parents of 2- to 5-year-old children. Standard content analysis procedures were used to identify trends and themes in the focus group data, and Analysis of Variance was used to test for differences between groups in the survey data. Results showed 80% of parents ate breakfast daily, consumed sugary beverages 2.7 ± 2.5SD days per week, and had at least two different vegetables and fruits an average of 5.2 ± 1.8SD and 4.6 ± 2.0SD days per week. Older parents and those with greater education drank significantly fewer sugary drinks. Parents played actively a mean 4.2 ± 2.2 hours/week with their preschoolers, who watched television a mean 2.4 ± 1.7 hours/day. Many parents reported having a bedtime routine for their preschooler and choosing childcare centers that replaced screen-time with active play and nutrition education. Common barriers to choosing healthful behaviors included lack of time; neighborhood safety; limited knowledge of portion size, cooking methods, and ways to prepare healthy foods or play active indoor games; the perceived cost of healthy options, and family members who were picky eaters. Supports for performing healthful behaviors included planning ahead, introducing new foods and behaviors often and in tandem with existing preferred foods and behaviors, and learning strategies from other parents. Future education programs with preschool parents should emphasize supports and encourage parents to share helpful strategies with each other.