Our Students

A Graduate School of Education, Health & Psychology

Meet Our Doctoral Students


Displaying 13 students
Ben Atzmon

Ben Atzmon

Ph.D. Student, Cognitive Science in Education

Ben E. Atzmon received his bachelor of arts in psychology with combined studies of qualitative and quantitative research methods from Richmond, the American International University in London, and is currently pursuing his Ph.D. in cognitive science in education at Teachers College, Columbia University. He is interested in how STEM college students’ problem solving choices and motivations are impacted by failure experiences in the STEM classroom environment.
Human Development First-Generation College Student
Caroline Botvin

Caroline Botvin

Ph.D. Student, Developmental Psychology

Dissertation Advisor: Tyler Wayne Watts

Caroline Botvin is a PhD Candidate in Developmental Psychology mentored by Dr. Tyler Watts. Her research explores the potential for early childhood interventions to produce compounding benefits across various domains of development. Caroline has primarily focused on the short- and longer-term effects of early childhood programs on children’s cognitive, social-emotional, and behavioral outcomes. Much of her work examines publicly-funded initiatives designed to foster the development of children experiencing poverty.

Prior to coming to TC, Caroline worked as a Senior Research Coordinator at National Health Promotions Associates. There, she developed intervention materials and coordinated research activities for several NIH-funded projects designed to attenuate various risk behaviors among adolescents.
Human Development
Haleigh Brown

Haleigh Brown (She/Her/Hers)

Ph.D. Student, Developmental Psychology

Haleigh is a doctoral student working under Drs. Sonya Troller-Renfree and Kimberly Noble. She is interested in studying how early-life adversity becomes biologically embedded in the developing brain, as measured by electroencephalography (EEG). Haleigh is trained in data collection for a host of physiological measures (e.g., EEG, RSA, cortisol, DNA) and is dedicated to working with diverse global populations. Through her research, Haleigh is interested in examining how inflammatory markers, fetal programming, and mother-child synchronicity can further elucidate how adversity impacts child brain development. Haleigh has worked under Dr. Catherine Monk at Columbia University Irving Medical Center, and previously as an undergraduate research assistant in three psychology laboratories (clinical, school, neuropsychology) to support her thesis, in authoring and disseminating a book on improving child health outcomes.
Human Development
Ishaq Chowdhury

Ishaq Chowdhury (He/Him/His)

Ph.D. Student, Cognitive Science in Education

Dissertation Advisor: John B Black

Ishaq Chowdhury is currently a PhD candidate studying how educational technology can be better implemented to facilitate learning. He is exploring ways for digital tools to be more effective in supporting classroom environments. His immediate focus is investigating how different types of feedback in formative assessments can influence student performance and understanding of learned material. Currently, Ishaq is conducting studies comparing different levels of interactive feedback to examine how they play a role in cognitive load, student engagement, and student reception towards feedback.
Human Development First-Generation College Student
Katie Gray

Katie Gray (She/Her/Hers)

Ph.D. Student, Developmental Psychology

As a doctoral student under the mentorship of Dr. Sonya Troller-Renfree, my research revolves around the associations between early adversity, neurodevelopment, and school readiness. I am particularly interested in examining environmental factors that could be targeted through policy interventions. I am experienced with the collection and processing of physiological markers (e.g., EEG, RSA, and cortisol) and analyzing data in SPSS and R. I gained work experience as a research coordinator under Drs. Kristin Buss and Koraly Perez-Edgar at Penn State University, and I volunteered as an undergraduate research assistant with Dr. Rebecca Brooker while I studied at Texas A&M University.
Human Development
Yoojin Hahn

Yoojin Hahn

Ph.D. Student, Cognitive Science in Education

Dissertation Advisor: Robert S Siegler
I am a PhD student in the Cognitive Science in Education program. My research broadly explores mathematical learning and performance across different age groups. Currently, I am investigating how children and adults understand graphs and how specific aspects of the learning environment influence their learning.
Human Development
Emma Hart

Emma Hart

Ph.D. Student, Developmental Psychology

Dissertation Advisor: Tyler Wayne Watts

Emma Hart is a PhD candidate in Developmental Psychology mentored by Drs. Tyler Watts and Kimberly Noble. Her doctoral research is supported by the National Science Foundation Graduate Research Fellowship.

Emma’s research examines the role that early skills and contexts play in shaping later development. Towards these ends, she studies the longitudinal effects of interventions that are designed to experimentally change children’s skills and contexts. Her work has primarily focused on programs designed to support children experiencing poverty.

Through her research, Emma strives to shape policymaker investments in programs that are most likely to promote equity, while also strengthening and refining theories of fundamental developmental phenomena. She approaches this work with advanced statistical techniques and an interdisciplinary lens cultivated through her training at TC.

You can find more on her work at emmarosehart.com.
Human Development
Jullia Lim

Jullia Lim

Ph.D. Student, Cognitive Science in Education

Jullia is a PhD candidate in Cognitive Science in Education, currently researching the effects of AI-generated videos with pedagogical agents (virtual instructors) on cognition and learning. She is particularly interested in the dynamics of human-AI interaction within educational contexts.

As an interdisciplinary researcher, Jullia approaches complex problems from multiple perspectives, informed by her diverse professional experiences, including running an edtech startup, serving as a PM for an education app, and teaching in the classroom.

Her research interests focus on the interaction between individuals and technology. She has designed immersive experiences, such as an augmented reality (AR) social skills game for autistic individuals and a virtual reality (VR) speech therapy app for stuttering patients. Through her work, Jullia aims to leverage technology to create more equitable and inclusive learning environments, ensuring that tech tools meet the diverse needs of all learners.
Human Development
Xinyu Pan

Xinyu Pan

Ph.D. Student, Cognitive Science in Education

Dissertation Advisor: John B Black

Xinyu Pan is a Ph.D. Candidate in Cognitive Science in Education. She is trained in both quantitative and qualitative research methods. Inspired by her previous experience as a high school teacher and Program Director at NYC Department of Education, her primary research interests are teacher beliefs’ influence on instructional behaviors and the longitudinal effect of school-based skills interventions. Outside of her Ph.D. studies, she is a Research Associate at Bank Street College of Education and an Instructional Coach for NYC Public Schools.

Notable projects:

- evaluated the longitudinal effects of a randomized control-trial early childhood skills intervention as part of two multi-year grants funded by the Institute for Educational Sciences and the National Institute of Child Health and Human Development

- designed curriculum that promotes storytelling as a means for mathematics learning and engagement as part of a three-year project funded by the National Science Foundation
Human Development Student-Parent
Mindy Rosengarten

Mindy Rosengarten (She/Her/Hers)

Ph.D. Student, Developmental Psychology

Mindy is a third year PhD student mentored by Tyler Watts and Kimberly Noble. Her research examines the long-term impacts of educational interventions and asks what features of interventions are most predictive of such long-term impacts. Mindy is also interested in the impacts of early childhood education on parents' earnings and educational attainment.

Mindy is currently a research fellow with the Minnesota Department of Education working on their longitudinal data system. In this role, she examines what government programs mothers access and how use of such programs is associated with mothers' returns to education and the workforce.

Prior to beginning her doctoral studies, Mindy was a Research Coordinator at the Brazelton Touchpoints Center where she supported program and policy evaluations focused on child and family education and health.
Human Development
Ji Young Song

Ji Young Song (She/Her/Hers)

Ph.D. Student, Developmental Psychology

Ji Young (Christie) is a PhD student in the Developmental Psychology program, working under Dr. Sonya Troller-Renfree. Her research interests include, but are not limited to, understanding how poverty and early childhood stress impact children’s neurodevelopment and socioemotional well-being. She is experienced in data collection and processing of physiological markers, such as EEG and cortisol.
Ji Young earned both her bachelor’s and master’s degrees from Yonsei University in Seoul, South Korea, where she worked under Dr. Ki-Hak Lee in the School and Counseling Lab. She was awarded a Study Abroad Scholarship from the Korean Government to pursue her PhD.
Human Development
Jessica Sperber

Jessica Sperber

Ph.D. Student, Developmental Psychology

Dissertation Advisor: Kimberly G Noble

Jessica is a 5th year doctoral student mentored by Dr. Kimberly Noble and Dr. Tyler Watts. Her research examines the effects of poverty and maternal stress on developmental outcomes across the lifespan, and the ability of early life interventions to ameliorate those effects. Jessica is particularly interested in biological mechanisms of early life adversity to explain disparities in health and behavior, leveraging techniques such as EEG, cortisol, and epigenetics.

Prior to coming to TC, Jessica worked as a Project Coordinator at the Bates Social Development Lab at Indiana University. She also worked as a Research Coordinator for ParentCorps at NYU, a large-scale socioemotional intervention for under-resourced preschools across NYC. In 2024, she received the prestigious NRSA F31 from NICHD to fund her dissertation research, which will examine the associations between family SES and maternal stress with epigenetic aging and cognitive/behavioral outcomes across early childhood.
Human Development
Chengyuan Yao

Chengyuan Yao (He/Him/His)

Ph.D. Student, Measurement and Evaluation

Human Development

We are delighted to announce the launch of our new online profiles for Doctoral Students at Teachers College.

If you are a currently enrolled doctoral student at Teachers College, please visit the profile submission page for more information on how you can create your own profile.

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