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Publications

Our team routinely publishes in diverse outlets.

Below, find CRESP reports and journal articles on issues of education, nutrition, health, and social policy. Use the search bar to narrow the selection by author, title, description, or keywords.

Bookworms Case Study Report

January 2019
CRESP

In the summer of 2018, the Center for Research in Education and Social Policy (CRESP) at the University of Delaware (UD) was approached by staff of UD’s Professional Development Center for Educators (PDCE) to conduct a case study of the implementation …


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Ladder for Growth: A National Network to Build Capacity and Test Innovative Strategies for Healthy Food Initiatives (Final Grant Report)

November 2018
Allison Karpyn, Sara Grajeda, Rui Wang, Tara Tracy, Tiffany DeMenna

The nation’s first ever randomized control trial (RCT) was managed and evaluated by the University of Delaware’s (UD) Center for Research in Education and Social Policy (CRESP), at 76 farmers markets (FMs) in 13 states and the District of Columbia, ove …


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Fresh Access Bucks: Increasing Food Access and Florida Farmer Sales at Markets Statewide Florida Organic Growers (Final Grant Report)

November 2018
Allison Karpyn, Sara Grajeda, Rui Wang, Tara Tracy, Tiffany DeMenna

The nation’s first ever randomized control trial (RCT) was managed and evaluated by the University of Delaware’s (UD) Center for Research in Education and Social Policy (CRESP) across three networks of farmers markets (FMs) in 13 states and the Distric …


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Incentivizing Fruit and Vegetable Consumption in the Big Apple New York City Department of Mental Health and Hygiene (Final Grant Report)

November 2018
Allison Karpyn, Sara Grajeda, Rui Wang, Tara Tracy, Tiffany DeMenna

The nation’s first ever randomized control trial (RCT) was managed and evaluated by the University of Delaware’s (UD) Center for Research in Education and Social Policy (CRESP), at 76 farmers markets (FMs) in 13 states and the District of Columbia, ove …


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Mapping the Field: Use of Research Evidence in Policy and Practice

October 2018
Elizabeth N. Farley-Ripple, Annette Boaz, Kathryn Oliver, Robert Borst, Xiaoxue Zhang

The use of research evidence (URE) in policy and practice is relevant to many academic disciplines; and indeed many policy and practice domains. Different methods and approaches to measuring, evaluating, promoting and describing the various ways in whi …


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Food and Public Health: A Practical Introduction

October 2018
Allison Karpyn, PhD (Ed.)

A new introduction to public health’s most elemental topic Food is baked in to most things that public health is and does. But for a field charged with carrying torches as divergent as anti-hunger and anti-obesity, it’s unlikely, even impossible, to sh …


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Mental and Behavioral Health

October 2018
CRESP

The prevalence—as well as social and economic costs—of mental, emotional, and behavioral health disorders among American students is alarming. According to the National Academy of Medicine, nearly 1 in every 5 American students struggles with mental, e …


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Responsive Classroom

August 2018
CRESP

For too many students and teachers, a nurturing, safe, positive school climate is out of reach. Issues such as adverse childhood experiences, bullying, and chronic absenteeism present daily challenges. Measures to address these challenges have fallen s …


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Chronic Absenteeism and Its Impact on Achievement

June 2018
CRESP

An overwhelming body of research demonstrates the negative short- and long-term consequences of chronic absenteeism on academic achievement. Students who are chronically absent are missing critical instruction time and are at the greatest risk of falli …


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Middle School Mathematics Instructional Coaching

March 2018
CRESP

Research supports the long-term use of highly trained instructional coaches for improving the teaching of middle school mathematics and increasing the mathematics achievement of students. Coaches work with teachers, both in and outside of classrooms, t …


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Education Data Systems: A Systematic Look at State Practices Related to Researcher Access

June 2017
Elizabeth N. Farley-Ripple, Jesse Sheeks, Amanda B. Jennings, Andrew Millin

As expectations for research and data to inform educational decision making continue to grow under federal policy, state longitudinal data systems (SLDS) are in place in nearly all states and offer a unique resource for generating evidence to support i …


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Pairing Animal Cartoon Characters with Produce Stimulates Selection Among Child Zoo Visitors

November 2016
Allison Karpyn, Michael Allen, Samantha Marks, Nicole Filion, Debora Humphrey, Ai Ye, Henry May, Meryl P. Gardner

In order to address the pervasive trend of under consumption of fruits and vegetables among children, we examined the hypothesis that children would be more likely to select fruits (apple slices, bananas, and oranges) and vegetables (baby carrots) when …


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Our Healthy Block: Evaluation of a community-based healthy eating and physical activity intervention

November 2016
Karen Glanz, Nicole Thomas, Allison Karpyn, Colleen Watts, Alexandra Tomlinson, Carolyn Cannuscio

Philadelphia has a high prevalence of hypertension, heart disease, diabetes and obesity. To reduce chronic disease, there is a need for targeted, innovative community-based interventions to improve the food and physical activity environments for urban …


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Healthy Store Programs and the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC), but not the Supplemental Nutrition Assistance Program (SNAP), are Associated with Corner Store Healthfulness

June 2016
DeWeese, Todd, Karpyn, et al.

In response to lack of access to healthy foods, many low-income communities are instituting local healthy corner store programs. Some stores also participate in the United States Department of Agriculture’s Special Supplemental Nutrition Program for Wo …


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Innovative Zoo Partnership Lending New Insight into the Power of Animals to Market Healthy Food to Kids

June 2016
Allison Karpyn, Michael Allen, Meryl Gardner, Samantha Marks

A partnership between the Brandywine Zoo and the University of Delaware Center for Research in Education and Social Policy demonstrates how sectors can work together to solve important problems while at the same time reminding those involved in changin …


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Do Accountability Policies Push Teachers Out?

May 2016
Richard Ingersoll, Lisa Merrill, Henry May

Sanctions exacerbate the teacher turnover problem in low-performing schools—but giving teachers more classroom autonomy can help stem the flood. School accountability may be the most controversial and significant of all contemporary U.S. education refo …


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Reading Recovery: An Evaluation of the Four-Year i3 Scale-Up Research Report

March 2016
Henry May, Philip Sirinides, Abigail Gray, Heather Goldsworthy

This final report in a series presents the results of a four-year independent external evaluation of the impacts and implementation of the scale-up of Reading Recovery, a literacy intervention targeting struggling 1st-grade students.  The evaluation wa …


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Employee and Customer Reactions to a Healthy In-Store Marketing Intervention in Supermarkets

January 2016
Erica L. Davis, Alexis C. Wojtanowski, Stephanie Weiss, Gary D. Foster, Allison Karpyn, Karen Glanz

Supermarkets are a primary source of food for American households, and increased presence in low-income, high-minority neighborhoods present opportunities to increase access to healthy foods. It is important to assess store manager and customer reactio …


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Connecting Healthy Farms to Healthy Delawareans: A Farm and Food Report

January 2016
CRESP, Delaware Department of Agriculture

In partnership with the Delaware Department of Agriculture, this report reflects conversations with more than 45 Delawareans, representing leadership from agriculture, public health, food retailers, economic development, government and civic organizati …


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Parallel-Group Randomized Study on the Impact of a Modified TeamSTEPPS Training on Resident and Nurse Attitudes Toward Teamwork and their Adherence to Patient Safety Protocols

January 2016
Orlando, Joshi, Carter, May, et al.

Gaps remain in what constitutes optimal healthcare team training in terms of design and impact. This study utilizes a parallel group randomized design to study the impact of a modified TeamSTEPPS training on resident and nurse attitudes toward teamwork …


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An Examination of the Benefits, Limitations, and Challenges of Conducting Randomized Experiments with Principals

December 2015
Eric M. Camburn, Ellen Goldring, James Sebastian, Henry May, Jason Huff

The past decade has seen considerable debate about how to best evaluate the efficacy of educational improvement initiatives, and members of the educational leadership research community have entered the debate with great energy. Throughout this debate, …


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Backtalk: Education is the Best Medicine

September 2015
Allison Karpyn

There is a direct connection between the level of education and public health. Policymakers from these two fields should collaborate to press for education improvements that would ultimately result in better public health. Keywords: health, low-income, …


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Year One Results from the Multi-Site Randomized Evaluation of the i3 Scale-Up of Reading Recovery

June 2015
Henry May, Abigail Gray, Philip Sirinides, Heather Goldsworthy, Michael Armijo, Cecile Sam, Jessica N. Gillespie, Namrata Tognatta

Reading Recovery (RR) is a short-term, one-to-one intervention designed to help the lowest achieving readers in first grade. This article presents first-year results from the multisite randomized controlled trial (RCT) and implementation study under th …


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Physical Activity and Food Environment Assessments: Implications for Practice

May 2015
A. A. Eyler, H. M. Blanck, J. Gittelsohn, A. Karpyn, T. L. McKenzie, S. Partington, S. J. Slater, M. Winters

There is growing interest in the use of physical activity and nutrition environmental measures by both researchers and practitioners. Built environment assessment methods and tools range from simple to complex and encompass perceived, observed, and geo …


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Urban Farm Complex Research

April 2015
Nicole Filion, Carly Wine, Eli Turkel, Serita Moss, Katie Russel, Phoebe Connell, Grace Duffy, Madeleine Rouviere, Cassandra Finucan, Juan Pastor

This document provides an in-depth look at the possibilities for implementing an urban farm complex on the lot on Gordon Street (Wilmington, DE). We begin with an overview of Wilmington’s Socio-economic Demographics to frame the project followed by ext …


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Educational Contracting and the Translation of Research into Practice

April 2015
Elizabeth Farley-Ripple, Akisha R. Jones

The Case of Data Coach Vendors in Delaware: Accountability puts demands on educational agencies that often exceed their capacity. As a result, a variety of educational organizations are contracted to design and implement policy. Programs and services o …


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A Discrete Choice Approach to Modeling Food Store Access

January 2015
Amy Hillier, Tony Smith, Carolyn C Cannuscio, Allison Karpyn, Karen Glanz

Assessments of access to healthful food frequently use GIS to measure the distance and concentration of food outlets relative to where residents live. These descriptive approaches do not account for food shopping behavior, which may vary based on the a …


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Evaluation of the i3 Scale-up of Reading Recovery | Year Two Report, 2012-13

December 2014
May, Goldsworthy, Armijo, Gray, Sirinides, Blalock, Anderson-Clark, Schiera, Blackman, Gillespie, Sam

Reading Recovery is a short-term early intervention designed to help the lowest-achieving readers in first grade reach average levels of classroom performance in literacy. Students identified to receive Reading Recovery meet individually with a special …


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The Social Dynamics of Healthy Food Shopping and Store Choice in an Urban Environment

October 2014
C. C. Cannuscio, A. Hillier, A. Karpyn, K. Glanz

To respond to the high prevalence of obesity and its associated health consequences, recent food research and policy have focused on neighborhood food environments, especially the links between health and retail mix, proximity of food outlets, and type …


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Consumer Taste Tests and Milk Preference in Low-Income, Urban Supermarkets

September 2014
Stephanie Weiss, Erica Davis, Alexis C. Wojtanowski, Gary D Foster, Karen Glanz, Allison Karpyn

Objective: To explore shoppers’ responses to the taste of different types of cow’s milk in a blind taste test and to examine their willingness to purchase lower-fat milk as part of an in-store marketing intervention. Design: Participants were recruited …


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What Are the Effects of Teacher Education and Preparation on Beginning Teacher Attrition?

August 2014
Richard Ingersoll, Lisa Merrill, Henry May

This study addresses the question: Do the kinds and amounts of pre-service education and preparation that beginning teachers receive before they start teaching have any impact on whether they leave teaching? Authors Richard Ingersoll, Lisa Merrill, and …


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Approaches for Promoting Healthy Food Purchases by SNAP Participants

July 2014
Erika Gordon, Nicola Dawkins-Lyn, Reid Hogan-Yarbro, Allison Karpyn, Karen Shore, Stephanie Weiss, Sean Cash

The plan for leveraging a nutrition labeling system and the incentive approaches for promoting healthy choices described in this report were developed through a review of the literature, expert consultation, and consideration of ongoing initiatives to …


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Design and Evaluation of the “Our Healthy Block” Pilot Program

July 2014
K. Glanz, A. Hillier, N. Thomas, C. Cannuscio, A. Karpyn, C. Watts

Informed by a mixed-methods assessment of residents’ shopping and physical activity patterns and barriers and facilitators to healthy food access and activity, and observational assessments of local food environments, we engaged community members in de …


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In an Urban Neighborhood, Who is Physically Active and Where?

May 2014
A. Hillier, K. Tappe, C. Cannuscio, A. Karpyn, K. Glanz

Previous research has shown differences in adult physical activity (PA) levels within an urban population, in what types of activities they participated, and where they were active. A sample of 514 urban Philadelphia adult residents was surveyed about …


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Placement and Promotion Strategies to Increase Sales of Healthier Products in Supermarkets in Low-Income, Ethnically Diverse Neighborhoods: A Randomized Controlled Trial

April 2014
Foster, Karpyn, Wojtanowski, et al.

The greater presence of supermarkets in low-income, high-minority neighborhoods has the potential to positively affect diet quality among those at greatest risk of obesity. In-store marketing strategies that draw attention to healthier products may be …


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Lessons Learned from Small Store Programs to Increase Healthy Food Access

March 2014
J. Gittelsohn, M. N. Laska, A. Karpyn, K. Klingler, G. X. Ayala

Guidance for researchers and practitioners wishing to design, implement, and evaluate small store interventions. Keywords: Customer relationships, store owner, healthy foods, healthier foods, stocking food, evaluation, dissemination, health, food J. Gi …


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Evaluation Matters: Getting the Information You Need from Your Evaluation

January 2014
Susan P. Giancola

This guide is written for educators. The primary intended audience is state- and district-level educators (e.g., curriculum supervisors, district office personnel, and state-level administrators). Teachers, school administrators, and board members also …


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Evaluation of the i3 Scale-up of Reading Recovery | Year One Report, 2011-12

August 2013
Henry May, Abigail Gray, Jessica N. Gillespie, Philip Sirinides, Cecile Sam, Heather Goldsworthy, Michael Armijo, Namrata Tognatta

Reading Recovery (RR) is a short-term early intervention designed to help the lowest-achieving readers in first grade reach average levels of classroom performance in literacy. Students identified to receive Reading Recovery meet individually with a sp …


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Apples and Oranges: Comparing the Backgrounds and Academic Trajectories of International Baccalaureate (IB) Students to a Matched Comparison Group

August 2013
Henry May, Awilda Rodriguez, Philip Sirinides, et al.

Despite a lack of scientifically based research, credit-based transition programs such as International Baccalaureate (IB), Advanced Placement (AP), and dual enrollment have become very popular as a means to increase the rigor of high school course off …


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Unequal Access to Rigorous High School Curricula

June 2013
Laura W. Perna, Henry May, April Yee, Tafaya Ransom, Awilda Rodriguez, Rachél Fester

An exploration of the opportunity to benefit from the International Baccalaureate Diploma Programme (IBDP): This study explores whether students from low-income families and racial/ethnic minority groups have the opportunity to benefit in what is argua …


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Rethinking Research: Creating a Practice-Based Agenda for Sustainable Small-Scale Healthy Food Retail

April 2013
Allison Karpyn, Hannah Burton-Laurison

An emerging body of research examines the health and economic impacts of healthy corner store interventions, although implementing valid mechanisms to capture changes in diet remains a challenge. Healthy corner store interventions employ strategies to …


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The Impact of the GE Foundation Developing Futures in Education Program on Mathematics Performance Trends in Four Districts

April 2013
Philip Sirinides, Jonathan A. Supovitz, Namrata Tognatta, Henry May

Beginning in 2005, the GE Foundation initiated a commitment of expertise and financial resources to a set of urban school districts to improve public education and enhance student achievement in mathematics and science. With strong emphasis on stakehol …


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The Magnitude, Destinations, and Determinants of Mathematics and Science Teacher Turnover

December 2012
Richard M. Ingersoll, Henry May

This study examines the magnitude, destinations, and determinants of mathematics and science teacher turnover. The data are from the nationally representative Schools and Staffing Survey and the Teacher Follow-Up Survey. Over the past two decades, rate …


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Retaining Teachers: How Preparation Matters

December 2012
Richard Ingersoll, Lisa Merrill, Henry May

Using data from the 2003-04 Schools and Staffing Survey, the authors studied how various aspects of teacher preparation affect the retention of new teachers–specifically mathematics and science teachers. They found that the preparation of new mathemat …


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A Longitudinal Study of Principals’ Activities and Student Performance

June 2012
Henry May, Jason Huff, Ellen Goldring

Although a substantial amount of research on school leadership has focused on what principals may do to improve teaching and learning, little of this research has explored how principals’ time spent on leadership activities may relate to and possibly a …


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America’s Youngest Kindergarteners’ Elevated Levels of Internalizing Problems at School Entry and Beyond: Evidence from the Early Childhood Longitudinal Study

June 2012
Guang Zeng, Pingfu Fu, Henry May, Barbara Lopez, Lourdes Suarez-Morales, Manuel C. Voelkle, Chen-Pin Wang, Robert F. Boruch

The study investigated developmental trajectories of internalizing problems from kindergarten to fifth grade in young kindergarteners versus older peers in kindergarten, as well as factors that may be attributed to such differential trajectories. Data …


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A Policy Analysis of the Federal Growth Model Pilot Program’s Measures of School Performance: The Florida Case

January 2012
Michael J. Weiss, Henry May

As test-based educational accountability has moved to the forefront of national and state education policy, so has the desire for better measures of school performance. No Child Left Behind’s (NCLB) status and safe harbor measures have been criticized …


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The Minority Teacher Shortage: Fact or Fable?

September 2011
Richard M. Ingersoll, Henry May

Over the past two decades, efforts to recruit new minority teachers have been very successful, but retaining them has not. Keywords: Recruitment, employment, retention, teacher shortage, teaching Richard M. Ingersoll, Henry May


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The Scope of Principal Influence on Instructional Practice

October 2010
Henry May, Jonathan A. Supovitz

Researchers have used many angles and perspectives to investigate how principals enact instructional leadership in schools. Most research has emphasized the practices of school leaders, although investigations of leadership styles and leadership proces …


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