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Walter S. Gilliam, PhD

Professor Adjunct in the Child Study Center

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Walter S. Gilliam, PhD
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Research Summary

Dr. Gilliam's research involves early childhood education and intervention policy analysis (specifically how policies translate into effective services), ways to improve the quality of prekindergarten and child care services, and the impact of early childhood education programs on children's school readiness, as well as issues of COVID-19 transmission, vaccination, and health and safety promotion in early childhood settings. His scholarly writing addresses early childhood care and education programs, school readiness, and developmental assessment of young children. Dr. Gilliam has led national analyses of state-funded prekindergarten policies and mandates, how prekindergarten programs are being implemented across the range of policy contexts, and the effectiveness of these programs at improving school readiness and educational achievement, as well as experimental and quasi-experimental studies on methods to improve early education quality. Dr. Gilliam actively provides consultation to state and federal decision-makers. His work has been covered in major national and international news outlets for print, radio, and television.

Specialized Terms: Child care and early childhood education; Intervention policy analysis; Early childhood mental health consultation; Child and family social policy; Young child development; COVID-19

Extensive Research Description

Dr. Gilliam's research involves early childhood education and intervention policy analysis (specifically how policies translate into effective services), ways to improve the quality of prekindergarten and child care services, and the impact of early childhood education programs on children's school readiness. His scholarly writing addresses early childhood care and education programs, school readiness, and developmental assessment of young children. Dr. Gilliam has led national analyses of state-funded prekindergarten policies and mandates, how prekindergarten programs are being implemented across the range of policy contexts, and the effectiveness of these programs at improving school readiness and educational achievement, as well as experimental and quasi-experimental studies on the effectiveness of various methods to improve early education quality, as well as issues of COVID-19 transmission, vaccination, and health and safety promotion in early childhood settings.

Dr. Gilliam directs The Edward Zigler Center in Child Development and Social Policy. Its mission is to create and disseminate research that can be used to inform legislative and other policy efforts on behalf of children and families and to train future generations working at the intersect of research and policy development. Dr. Gilliam actively provides consultation to state and federal decision-makers, and his comments on early education are sought frequently by national and international news reporters.

Additionally, Dr. Gilliam provides clinical supervision in the early childhood section of the Child Study Center (providing developmental evaluations of children birth to 5-years old) and in the Newborn Follow-up Clinic, for premature and low birth weight infants. Dr. Gilliam holds a joint appointment with the Psychology Department at Yale University.

Dr. Gilliam leads the Yale Children and Adults Research in Early Education Study Team (Yale CARES), an interdisciplinary team of researchers studying COVID-19 transmission mitigation, vaccination, and health and mental health supports in early childhood settings. The team consists of experts in young child development and mental health, epidemiology, vaccinology, pediatric infectious disease control, economics, policy, and early childhood systems.

Dr. Gilliam was PI on the National Prekindergarten Study, the first study to examine the relationship between state-level early education legislation and policy and classroom-level implementation.

Dr. Gilliam has conducting a series of statewide random-controlled trials, examining the effectiveness of mental health consultation infused into child care and early education systems.

A series of studies examining preschool expulsion rates and practices are currently underway.

Coauthors

Research Interests

Child Behavior Disorders; Child Development; Developmental Disabilities; Child Rearing; Consultants; Education; Mental Health; Parents; Primary Prevention; Resilience, Psychological; COVID-19

Public Health Interests

Mental Health; Poverty and Economic Security; Child/Adolescent Health; Health Equity, Disparities, Social Determinants and Justice

Research Image

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Prekindergarten Expulsion Rates by State

Selected Publications

  • COVID-19 Transmission in US Child Care ProgramsGilliam WS, Malik AA, Shafiq M, Klotz M, Reyes C, Humphries JE, Murray T, Elharake JA, Wilkinson D, Omer SB. COVID-19 Transmission in US Child Care Programs. Pediatrics 2021, 147: e2020031971. PMID: 33055228, DOI: 10.1542/peds.2020-031971.
  • Masking in early child care and COVID-19 infectionMurray T, Malik A, Gilliam W. Masking in early child care and COVID-19 infection. TheScienceBreaker 2022, 8 DOI: 10.25250/thescbr.brk665.
  • Prevalence of Chronic Diseases, Depression, and Stress Among US Childcare Professionals During the COVID-19 PandemicElharake JA, Shafiq M, Cobanoglu A, Malik AA, Klotz M, Humphries JE, Murray T, Patel KM, Wilkinson D, Yildirim I, Diaz R, Rojas R, Cohen A, Lee A, Omer SB, Gilliam WS. Prevalence of Chronic Diseases, Depression, and Stress Among US Childcare Professionals During the COVID-19 Pandemic. Preventing Chronic Disease 2022, 19: e61. PMID: 36137183, PMCID: PMC9541678, DOI: 10.5888/pcd19.220132.
  • Relationship between the use of nonpharmaceutical interventions and COVID-19 vaccination among U.S. child care providers: A prospective cohort studyPatel KM, Shafiq M, Malik AA, Cobanoglu A, Klotz M, Eric Humphries J, Lee A, Murray T, Wilkinson D, Yildirim I, Elharake JA, Diaz R, Rojas R, Kuperwajs Cohen A, Omer SB, Gilliam WS. Relationship between the use of nonpharmaceutical interventions and COVID-19 vaccination among U.S. child care providers: A prospective cohort study. Vaccine 2022, 40: 4098-4104. PMID: 35660329, PMCID: PMC9135692, DOI: 10.1016/j.vaccine.2022.05.064.
  • Differences in State COVID-19 Vaccine Mandates for Schoolteachers and Childcare ProfessionalsPatel KM, Omer SB, Gilliam WS. Differences in State COVID-19 Vaccine Mandates for Schoolteachers and Childcare Professionals. JAMA Pediatrics 2022, 176: 522-525. PMID: 35226092, PMCID: PMC8886449, DOI: 10.1001/jamapediatrics.2021.6572.
  • Mental Health Impact of COVID-19 among Children and College Students: A Systematic ReviewElharake JA, Akbar F, Malik AA, Gilliam W, Omer SB. Mental Health Impact of COVID-19 among Children and College Students: A Systematic Review. Child Psychiatry & Human Development 2022, 54: 913-925. PMID: 35013847, PMCID: PMC8747859, DOI: 10.1007/s10578-021-01297-1.
  • Association of Child Masking With COVID-19–Related Closures in US Childcare ProgramsMurray TS, Malik AA, Shafiq M, Lee A, Harris C, Klotz M, Humphries JE, Patel KM, Wilkinson D, Yildirim I, Elharake JA, Diaz R, Reyes C, Omer SB, Gilliam WS. Association of Child Masking With COVID-19–Related Closures in US Childcare Programs. JAMA Network Open 2022, 5: e2141227. PMID: 35084484, PMCID: PMC8796014, DOI: 10.1001/jamanetworkopen.2021.41227.
  • COVID-19 Vaccine Uptake Among US Child Care ProvidersPatel KM, Malik AA, Lee A, Klotz M, Humphries JE, Murray T, Wilkinson D, Shafiq M, Yildirim I, Elharake JA, Diaz R, Reyes C, Omer SB, Gilliam WS. COVID-19 Vaccine Uptake Among US Child Care Providers. Pediatrics 2021, 148: e2021053813. PMID: 34452977, PMCID: PMC9277775, DOI: 10.1542/peds.2021-053813.
  • COVID-19 Vaccine Uptake Among US Child Care Providers.Patel KM, Malik AA, Lee A, Klotz M, Humphries JE, Murray T, Wilkinson D, Shafiq M, Yildirim I, Elharake JA, Diaz R, Reyes C, Omer SB, Gilliam WS. COVID-19 Vaccine Uptake Among US Child Care Providers. Pediatrics 2021, 148 PMID: 35981249, DOI: 10.1542/peds.2021-053813.
  • COVID-19 Vaccine Uptake Among US Child Care Providers.Patel K, Malik A, Lee A, Klotz M, Humphries J, Murray T, Wilkinson D, Shafiq M, Yildirim I, Elharake J, Diaz R, Reyes C, Omer S, Gilliam W. COVID-19 Vaccine Uptake Among US Child Care Providers. Pediatrics 2021, 148 PMID: 36399077, DOI: 10.1542/peds.2021-053813.
  • Growth Rates of Infants Randomized to Continuous Positive Airway Pressure or Intubation After Extremely Preterm BirthSalas A, Carlo W, T. B, Bell E, Das A, Van Meurs K, Poindexter B, Shankaran S, Younge N, Watterberg K, Higgins R, Network E, Jobe A, Caplan M, Laptook R, Oh W, Vohr B, Hensman A, Stephens B, Alksninis B, Andrews D, Angela K, Barnett S, Cashore B, Caskey M, Francis K, Gingras D, Gargus R, Johnson K, Lainwala S, Leach T, Leonard M, Lillie S, Mehta K, Moore J, Noel L, Ventura S, Walden R, Watson V, Walsh M, Fanaroff A, Newman N, Wilson-Costello D, Siner B, Zadell A, DiFiore J, Bhola M, Friedman H, Yalcinkaya G, Schibler K, Donovan E, Yolton K, Narendran V, Bridges K, Alexander B, Grisby C, Mersmann M, Mincey H, Hessling J, Gratton T, Goldberg R, Cotten C, Goldstein R, Ashley P, Auten K, Fisher K, Foy K, Freedman S, Gustafson K, Lohmeyer M, Malcolm W, Wallace D, Stoll B, Buchter S, Piazza A, Carlton D, Adams-Chapman I, Black L, Blackwelder A, Carter S, Dinkins E, Fritz S, Hale E, Hutchinson A, LaRossa M, Smikle G, Archer S, Lemons J, Dusick A, Wilson L, Hamer F, Cook A, Herron D, Lytle C, Minnich H, Berberich M, Blaisdell C, Gail D, Kiley J, Poole W, Gantz M, Newman J, Hastings B, Auman J, Huitema C, Pickett J, Wallace D, Zaterka-Baxter K, Stevenson D, Hintz S, Ball M, Bentley B, Bruno E, Davis A, DeAnda M, DeBattista A, Kohn J, Proud M, Pyle R, St. John N, Weiss H, Frantz I, Fiascone J, McGowan E, Furey A, MacKinnon B, Nylen E, Brussa A, Sibley C, Ambalavanan N, Collins M, Cosby S, Peralta-Carcelen M, Phillips V, Bailey K, Biasini F, Hopkins M, Johnston K, Krzywanski S, Nelson K, Patterson C, Rector R, Rodriguez L, Soong A, Whitley S, York S, Finer N, Rasmussen M, Wozniak P, Vaucher Y, Rich W, Arnell K, Barbieri-Welge R, Ben-Tall A, Bridge R, Demetrio C, Fuller M, Ito E, Lukasik M, Pontillo D, Posin D, Runyan C, Wilkes J, Zlotnik P, Widness J, Klein J, Colaizy T, Johnson K, Acarregui M, Eastman D, Duara S, Bauer C, Everett-Thomas R, Calejo M, Diaz A, Eguaras S, Garcia A, Hamlin-Smith K, Berkowits M, Hiriart-Fajardo S, Mathews E, Pierre H, Riguard A, Stroerger A, Ohls R, Fuller J, Rohr J, Lacy C, Lowe J, Montman R, Laroia N, Phelps D, Myers G, Markowitz G, Reubens L, Hust D, Augostino L, Johnson J, Burnell E, Gelbard H, Jensen R, Kushner E, Merzbach J, Mink J, Torres C, Wang D, Yost K, Sánchez P, Rosenfeld C, Salhab W, Heyne R, Adams S, Allen J, Grau L, Guzman A, Hensley G, Heyne E, Lepps M, Madden L, Martin M, Miller N, Morgan J, Solis A, Torres L, Boatman C, Vasil D, Wilder K, Kennedy K, Tyson J, Alaniz N, Evans P, Harris B, Green C, Jiminez M, Lis A, Martin S, McDavid G, Morris B, Poundstone M, Reddoch S, Siddiki S, Tate P, Whitely L, Wright S, Yoder B, Faix R, Baker S, Bird K, Burnett J, Cole L, Osborne K, Spencer C, Steffens M, Weaver-Lewis K, Zanetti K, O'Shea T, Dillard R, Washburn L, Peters N, Jackson B, Chiu K, Allred D, Goldstein D, Halfond R, Peterson C, Waldrep E, Welch C, Morris M, Hounshell G, Pappas A, Sood B, Bara R, Billian E, Goldston L, Johnson M, Ehrenkranz R, Bhandari V, Jacobs H, Cervone P, Gettner P, Konstantino M, Poulsen J, Taft J, Butler C, Close N, Gilliam W, Greisman S, Romano E, Williams J. Growth Rates of Infants Randomized to Continuous Positive Airway Pressure or Intubation After Extremely Preterm Birth. The Journal Of Pediatrics 2021, 237: 148-153.e3. PMID: 34157349, PMCID: PMC8478787, DOI: 10.1016/j.jpeds.2021.06.026.
  • Addressing challenging behaviors in challenging environments: Findings from Ohio's early childhood mental health consultation systemReyes CR, Gilliam WS. Addressing challenging behaviors in challenging environments: Findings from Ohio's early childhood mental health consultation system. Development And Psychopathology 2021, 33: 634-646. PMID: 33762032, DOI: 10.1017/s0954579420001790.
  • Emotional RegulationGilliam W. Emotional Regulation. 2021, 1723-1725. DOI: 10.1007/978-3-319-91280-6_288.
  • A Randomized Controlled Trial of Group Well-Child Care: Improved Attendance and Vaccination TimelinessFenick AM, Leventhal JM, Gilliam W, Rosenthal MS. A Randomized Controlled Trial of Group Well-Child Care: Improved Attendance and Vaccination Timeliness. Clinical Pediatrics 2020, 59: 686-691. PMID: 32107935, DOI: 10.1177/0009922820908582.
  • Teacher Decision Factors That Lead to Preschool ExpulsionGilliam W, Reyes C. Teacher Decision Factors That Lead to Preschool Expulsion. Infants & Young Children 2018, 31: 93-108. DOI: 10.1097/iyc.0000000000000113.
  • An Evaluation of an Educational Video Game on Mathematics Achievement in First Grade StudentsHieftje K, Pendergrass T, Kyriakides T, Gilliam W, Fiellin L. An Evaluation of an Educational Video Game on Mathematics Achievement in First Grade Students. Technologies 2017, 5: 30. DOI: 10.3390/technologies5020030.
  • Early Childhood Mental Health Consultation: Results of a Statewide Random-Controlled EvaluationGilliam WS, Maupin AN, Reyes CR. Early Childhood Mental Health Consultation: Results of a Statewide Random-Controlled Evaluation. Journal Of The American Academy Of Child & Adolescent Psychiatry 2016, 55: 754-761. PMID: 27566116, DOI: 10.1016/j.jaac.2016.06.006.
  • Growth Outcomes of Preterm Infants Exposed to Different Oxygen Saturation Target Ranges from BirthNavarrete CT, Wrage LA, Carlo WA, Walsh MC, Rich W, Gantz MG, Das A, Schibler K, Newman NS, Piazza AJ, Poindexter BB, Shankaran S, Sánchez PJ, Morris BH, Frantz ID, Van Meurs KP, Cotten CM, Ehrenkranz RA, Bell EF, Watterberg KL, Higgins RD, Duara S, Network E, Das A, Gantz M, Jobe A, Caplan M, Fanaroff A, Wilson-Costello D, Siner B, Zadell A, DiFiore J, Bhola M, Friedman H, Yalcinkaya G, Donovan E, Narendran V, Yolton K, Bridges K, Alexander B, Grisby C, Mersmann M, Mincey H, Hessling J, Gratton T, Goldberg R, Goldstein R, Ashley P, Auten K, Fisher K, Foy K, Freedman S, Gustafson K, Lohmeyer M, Malcolm W, Wallace D, Stoll B, Adams-Chapman I, Buchter S, Carlton D, Carter S, Fritz S, Hale E, Hutchinson A, LaRossa M, Smikle G, Archer S, Dusick A, Lemons J, Myers G, Wilson L, Hamer F, Cook A, Herron D, Lytle C, Minnich H, Berberich M, Blaisdell C, Gail D, Kiley J, Poole W, Newman J, Hastings B, Auman J, Huitema C, Pickett J, Wallace D, Zaterka-Baxter K, Stevenson D, Hintz S, Ball M, Bentley B, Bruno E, Davis A, DeAnda M, DeBattista A, Huffman L, Kohn J, Proud M, Pyle R, St. John N, Weiss H, Fiascone J, McGowan E, Furey A, MacKinnon B, Nylen E, Brussa A, Sibley C, Ambalavanan N, Peralta-Carcelen M, Collins M, Cosby S, Phillips V, Bailey K, Biasini F, Hopkins M, Johnston K, Krzywanski S, Nelson K, Patterson C, Rector R, Rodriguez L, Soong A, Whitley S, York S, Widness J, Acarregui M, Klein J, Colaizy T, Johnson K, Eastman D, Bauer C, Everett-Thomas R, Calejo M, Diaz A, Eguaras S, Garcia A, Hamlin-Smith K, Berkowits M, Hiriart-Fajardo S, Pierre H, Rigaud A, Stroerger A, Ohls R, Fuller J, Rohr J, Lacy C, Lowe J, Montman R, Brion L, Rosenfeld C, Salhab W, Heyne R, Adams S, Allen J, Chen L, Grau L, Guzman A, Hensley G, Heyne E, Hickman J, Lepps M, Madden L, Miller N, Morgan J, Solis A, Torres L, Boatman C, Vasil D, Kennedy K, Tyson J, Akpa E, Alaniz N, Dieterich S, Evans P, Green C, Harris B, Jiminez M, Lis A, Martin K, Martin S, McDavid G, Morris B, Poundstone M, Reddoch S, Siddiki S, Simmons M, Tate P, Wright S, Sood B, Pappas A, Bara R, Billian E, Goldston L, Johnson M, Bhandari V, Jacobs H, Cervone P, Gettner P, Konstantino M, Poulsen J, Taft J, Butler C, Close N, Gilliam W, Greisman S, Romano E, Williams J. Growth Outcomes of Preterm Infants Exposed to Different Oxygen Saturation Target Ranges from Birth. The Journal Of Pediatrics 2016, 176: 62-68.e4. PMID: 27344218, PMCID: PMC5327617, DOI: 10.1016/j.jpeds.2016.05.070.
  • Impact of Optimized Breastfeeding on the Costs of Necrotizing Enterocolitis in Extremely Low Birthweight InfantsColaizy T, Bartick M, Jegier B, Green B, Reinhold A, Schaefer A, Bogen D, Schwarz E, Stuebe A, Jobe A, Oh W, Vohr B, Walden R, Alksninis B, Hensman A, Leonard M, Noel L, Leach T, Watson V, Fanaroff A, Walsh M, Wilson-Costello D, Newman N, Siner B, Friedman H, Donovan E, Schibler K, Steichen J, Alexander B, Grisby C, Mersmann M, Mincey H, Hessling J, Gratton T, Stoll B, Adams-Chapman I, Hale E, LaRossa M, Carter S, Higgins R, Wright L, McClure E, Poindexter B, Lemons J, Dusick A, Kardatzke D, Lytle C, Appel D, Bohnke L, Eaken G, Herron D, Miller L, Richard L, Wilson L, Das A, Poole W, Wrage L, Hastings B, McClure E, Auman J, Taylor S, Stevenson D, Hintz S, Ball M, Kohn J, Baran J, Lee-Ancajas J, St. John N, Carlo W, Ambalavanan N, Nelson K, Peralta-Carcelen M, Bailey K, Biasini F, Chopko S, Collins M, Cosby S, Phillips V, Rector R, Finer N, Vaucher Y, Anderson J, Rasmussen M, Arnell K, Demetrio C, Fuller M, Henderson C, Posin D, Bell E, Colaizy T, Bauer C, Duara S, Worth A, Everett-Thomas R, Diaz A, Mathews E, Hamlin-Smith K, Jean-Gilles L, Calejo M, Frade S, Hiriart-Fajardo S, Gideon Y, Korones S, Bada H, Hudson T, Yolton K, Williams M, Laptook R, Salhab W, Broyles R, Madison S, Hickman J, Guzman A, Adams S, Madden L, Heyne E, Dooley C, Shankaran S, Delaney-Black V, Johnson Y, Bara R, Muran G, Kennedy D, Goldston L, Ehrenkranz R, Gettner P, Konstantino M, Romano E, Close N, Gilliam W, Poulsen J. Impact of Optimized Breastfeeding on the Costs of Necrotizing Enterocolitis in Extremely Low Birthweight Infants. The Journal Of Pediatrics 2016, 175: 100-105.e2. PMID: 27131403, PMCID: PMC5274635, DOI: 10.1016/j.jpeds.2016.03.040.
  • Emotional RegulationGilliam W. Emotional Regulation. 2013, 1087-1088. DOI: 10.1007/978-1-4419-1698-3_288.
  • Measuring the Environments of Early Care, Education, and Intervention Programs for Children in PovertyGilliam W, Sosinsky L. Measuring the Environments of Early Care, Education, and Intervention Programs for Children in Poverty. 2012, 243-258. DOI: 10.1017/cbo9781139016827.016.
  • Accountability and program evaluation in early education.Gilliam, W.S. & Frede, E. (2012). Accountability and program evaluation in early education. In R.C. Pianta, L. Justice, W.S. Barnett, & S. Sheridan (Eds.), Handbook of early education. New York: Guilford Publications.
  • Measuring the environments of early care, education and intervention programs for children in poverty.Gilliam, W. S., & Sosinsky, L. S. (2012). Measuring the environments of early care, education and intervention programs for children in poverty. In L. C. Mayes & M. Lewis (Eds.), A developmental environment measurement handbook. New York: Cambridge University Press.
  • Assistant Teachers in Prekindergarten Programs: What Roles Do Lead Teachers Feel Assistants Play in Classroom Management and Teaching?Sosinsky L, Gilliam W. Assistant Teachers in Prekindergarten Programs: What Roles Do Lead Teachers Feel Assistants Play in Classroom Management and Teaching? Early Education And Development 2011, 22: 676-706. DOI: 10.1080/10409289.2010.497432.
  • Chapter 15 Child Care How Pediatricians Can Support Children and FamiliesSosinsky L, Gilliam W. Chapter 15 Child Care How Pediatricians Can Support Children and Families. 2011, 45-45.e5. DOI: 10.1016/b978-1-4377-0755-7.00015-4.
  • The pre-k debates: Current controversies and issues.Zigler, E., Gilliam, W.S., & Barnett, W.S. (Eds.). (2011). The pre-k debates: Current controversies and issues. Baltimore: Paul H. Brookes.
  • Assessing accountability and ensuring continuous program improvement: Why, how and who.Frede, E., Gilliam, W. S., & Schweinhart, L. J. (2011). Assessing accountability and ensuring continuous program improvement: Why, how and who. In E. Zigler, W. S. Gilliam, & W. S. Barnett (Eds.), The pre-k debates: Current controversies and issues (pp. 152-159). Baltimore: Paul H. Brookes.
  • Preschool programs should be coordinated in the public schools with supports from Head Start and child care.Gilliam, W. S. (2011). Preschool programs should be coordinated in the public schools with supports from Head Start and child care. In E. Zigler, W. S. Gilliam, & W. S. Barnett (Eds.), The pre-k debates: Current controversies and issues (pp. 120-126). Baltimore: Paul H. Brookes.
  • Assistant teachers in prekindergarten programs: What roles do lead teachers feel assistants play in classroom management and teaching?Sosinsky, L. S., & Gilliam, W. S. (2011). Assistant teachers in prekindergarten programs: What roles do lead teachers feel assistants play in classroom management and teaching? Early Education and Development, 22, 676-706.
  • Child care: How pediatricians can support children and families.Sosinsky, L. S., & Gilliam, W. S. (2011). Child care: How pediatricians can support children and families. In R. M. Kliegman, B. F. Stanton, J. St. Geme, N. Schor, & R. E. Behrman (Eds.), Nelson textbook of pediatrics (19h ed.) (pp. 45 + online continuation). Philadelphia: Elsevier.
  • Blueprint for a more efficient NAEYC program accreditation system.Gilliam, W. S. (2010). Blueprint for a more efficient NAEYC program accreditation system. Young Children, 65(3), 64-66.
  • Coordinating America’s highly diversified early childhood investment portfolio.Gilliam, W. S. (2010). Coordinating America’s highly diversified early childhood investment portfolio. In R. Haskins & W. S. Barnett (Eds.), Current issues in child care and early childhood education (pp. 89-96. Washington, DC: The Brookings Institution & The National Institute for Early Education Research.
  • Preschool PromisesGilliam WS. Preschool Promises. Psychological Science In The Public Interest 2009, 10: i-v. PMID: 26168355, DOI: 10.1177/1529100610387083.
  • Science and policy: Connecting what we know to what we do.Zigler, E. F., & Gilliam, W. S. (2009). Science and policy: Connecting what we know to what we do. Zero to Three, 30(2), 40-46.
  • Head Start's Evolving Model of Collaboration, Early Education, and Family SupportGilliam W. Head Start's Evolving Model of Collaboration, Early Education, and Family Support. Infants & Young Children 2008, 21: 2-3. DOI: 10.1097/01.iyc.0000306368.94672.ad.
  • Head Start, Public School Prekindergarten, and a Collaborative PotentialGilliam W. Head Start, Public School Prekindergarten, and a Collaborative Potential. Infants & Young Children 2008, 21: 30-44. DOI: 10.1097/01.iyc.0000306371.40414.7c.
  • Crossing Borders With Head StartBritto P, Gilliam W. Crossing Borders With Head Start. Infants & Young Children 2008, 21: 82-91. DOI: 10.1097/01.iyc.0000306375.25167.3d.
  • Head Start, public school prekindergarten, and a collaborative potential.Gilliam, W. S. (2008). Head Start, public school prekindergarten, and a collaborative potential. Infants and Young Children, 21, 30-44.
  • Crossing borders with Head Start - Commonalities and differences between Head Start and early childhood programs in developing countries.Britto, P. R., & Gilliam, W. S. (2008). Crossing borders with Head Start - Commonalities and differences between Head Start and early childhood programs in developing countries. Infants and Young Children, 21, 82-91.
  • Developmental Pathway Modeling in Considering Behavior Problems in Young Russian ChildrenRuchkin V, Gilliam WS, Mayes L. Developmental Pathway Modeling in Considering Behavior Problems in Young Russian Children. Child Psychiatry & Human Development 2007, 39: 49-66. PMID: 17619143, DOI: 10.1007/s10578-007-0070-9.
  • Clinical assessment of infants and toddlers.Gilliam, W. S., & Mayes, L. C. (2007). Clinical assessment of infants and toddlers. In A. Martin & F. R. Volkmar (Eds.), Lewis’s child and adolescent psychiatry: A comprehensive textbook (4th ed.; pp. 309-322). Philadelphia: Lippincott, Williams & Wilkins.
  • Child and family policy: A role for child psychiatry and allied disciplines.Gilliam, W. S., Zigler, E. F., & Finn-Stevenson, M. (2007). Child and family policy: A role for child psychiatry and allied disciplines. In A. Martin & F. R. Volkmar (Eds.), Lewis’s child and adolescent psychiatry: A comprehensive textbook (4th ed.; pp. 35-48). Philadelphia: Lippincott, Williams & Wilkins.
  • A Vision for Universal Preschool EducationZigler E, Gilliam W, Jones S. A Vision for Universal Preschool Education. 2006 DOI: 10.1017/cbo9781139167284.
  • Preschool and Child Care Expulsion and SuspensionGilliam W, Shahar G. Preschool and Child Care Expulsion and Suspension. Infants & Young Children 2006, 19: 228-245. DOI: 10.1097/00001163-200607000-00007.
  • A vision for universal preschool education.Zigler, E., Gilliam, W. S., & Jones, S. M. (2006). A vision for universal preschool education. New York: Cambridge University Press.
  • Prekindergarten expulsion and suspension: Rates and predictors in one state.Gilliam, W. S., & Shahar, G. (2006). Prekindergarten expulsion and suspension: Rates and predictors in one state. Infants and Young Children, 19, 228-245.
  • Child Psychopharmacology, Effect Sizes, and the Big BangMartin A, Gilliam WS, Bostic JQ, Rey JM. Child Psychopharmacology, Effect Sizes, and the Big Bang. American Journal Of Psychiatry 2005, 162: 817-a-817. PMID: 15800175, DOI: 10.1176/appi.ajp.162.4.817-a.
  • Prekindergarteners left behind: Expulsion rates in state prekindergarten systems.Gilliam, W. S. (2005). Prekindergarteners left behind: Expulsion rates in state prekindergarten systems. New Haven, CT: Yale University Child Study Center.
  • Screening and surveillance in early intervention systems.Gilliam, W. S., Meisels, S., & Mayes, L. (2005). Screening and surveillance in early intervention systems. In M. J. Guralnick (Ed.), A Developmental Systems Approach to Early Intervention: National and International Perspectives (pp. 73-98). Baltimore, MD: Paul H. Brookes Publishing.
  • A critical meta-analysis of all evaluations of state-funded preschool from 1977 to 1998: implications for policy, service delivery and program evaluationGilliam W, Zigler E. A critical meta-analysis of all evaluations of state-funded preschool from 1977 to 1998: implications for policy, service delivery and program evaluation. Early Childhood Research Quarterly 2000, 15: 441-473. DOI: 10.1016/s0885-2006(01)00073-4.
  • The Relationship Between Language and Cognitive Development and Emotional‐Behavioral Problems in Financially‐Disadvantaged Preschoolers: A Longitudinal InvestigationGilliam W, de Mesquita P. The Relationship Between Language and Cognitive Development and Emotional‐Behavioral Problems in Financially‐Disadvantaged Preschoolers: A Longitudinal Investigation. Early Child Development And Care 2000, 162: 9-24. DOI: 10.1080/0300443001620102.
  • Evaluating child and family demonstration initiatives: lessons from the comprehensive child development programGilliam W, Ripple C, Zigler E, Leiter V. Evaluating child and family demonstration initiatives: lessons from the comprehensive child development program. Early Childhood Research Quarterly 2000, 15: 41-59. DOI: 10.1016/s0885-2006(99)00041-1.
  • A critical meta-analysis of all impact evaluations of state-funded preschool from 1977 to 1998: Implications for policy, service delivery and program evaluation.Gilliam, W. S., & Zigler, E. F. (2000). A critical meta-analysis of all impact evaluations of state-funded preschool from 1977 to 1998: Implications for policy, service delivery and program evaluation. Early Childhood Research Quarterly, 15, 441-473.
  • Will Fifty Cooks Spoil the Broth?Ripple C, Gilliam W, Chanana N, Zigler E. Will Fifty Cooks Spoil the Broth? American Psychologist 1999, 54: 327-343. DOI: 10.1037/0003-066x.54.5.327.
  • PrefaceMayes L, Gilliam W. Preface. Child And Adolescent Psychiatric Clinics Of North America 1999, 8: xiii-xv. DOI: 10.1016/s1056-4993(18)30175-5.
  • Developmental Assessment: Its Role in Comprehensive Psychiatric Assessment of Young ChildrenGilliam W. Developmental Assessment: Its Role in Comprehensive Psychiatric Assessment of Young Children. Child And Adolescent Psychiatric Clinics Of North America 1999, 8: 225-238. PMID: 10202587, DOI: 10.1016/s1056-4993(18)30177-9.
  • Differential diagnosis of childhood depression: Using comorbidity and symptom overlap to generate multiple hypothesesde Mesquita P, Gilliam W. Differential diagnosis of childhood depression: Using comorbidity and symptom overlap to generate multiple hypotheses. Child Psychiatry & Human Development 1994, 24: 157-172. PMID: 8174393, DOI: 10.1007/bf02353193.
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