Mathematical Development
How do children’s mathematical skills develop? What are the origins of individual differences in young children’s math abilities?
Davis-Kean, P.E., Domina, T., Kuhfield, M., Ellis, A., & Gershoff, E.T. (in press). It Matters How You Start: Early Numeracy Mastery Predicts High School Math Course-Taking and College Attendance. Infant and Child Development. https://doi.org/10.1002/icd.2281
Ellis, A., Hu, X., Smith, C., Davis-Kean, P. E., & Kovelman, I. (2018). Sharing as a Model for Understanding the Brain Bases of Division. Neuroreport, 29(11), 889–893. https://doi.org/10.1097/WNR.0000000000001050
Purpura, D.J., O’Rear, C.D., Ellis, A., Logan, J.A.R., King, Y.A., Westerberg, L., Cosso, J., Zippert, E., Napoli, A.R., Hornburg, C.B., Schmitt, S.A., & Dobbs-Oates, J. (In Principle Acceptance). Unique and Combined Effects of Mathematical Language and Numeracy Instruction: A Picture Book Intervention. Registered Report accepted for publication at Journal of Educational Psychology. https://osf.io/dygfk
Cosso, J., Ellis, A., O’Rear, C. D., Zippert, E. L., Schmitt, S. A., & Purpura, D. J. (in press). Conceptualizing the factor structure of parents’ math anxiety and associations with children’s mathematics skills. Annals of the New York Academy of Sciences. https://osf.io/v3rnc/
Ellis, A., Scalise, N.R., & Purpura, D.J. (in prep). The Sum is Greater Than the Parts: A Theoretical Model for Early Numeracy Development.
Measurement
How does the measurement of cognitive skills and contextual factors contribute to our understanding of constructs?
Davis-Kean, P.E., & Ellis, A. (2019). An overview of issues in infant and developmental research for the creation of robust and replicable science, Infant Behavior and Development, 57, 101339. https://doi.org/10.1016/j.infbeh.2019.101339
Ellis, A., Ahmed, S.F., Zeytinoglu, S., Isbell, E., Grammer, J.K., Gehring, W.J., Calkins, S.D., Leerkes, E.M., Morrison, F.J. & Davis-Kean, P.E. (2021). Reciprocal Associations Between Executive Function and Academic Achievement: A Conceptual Replication of Schmitt et al. (2017). Journal of Numerical Cognition, 7(3), 453-472. https://doi.org/10.5964/jnc.7047
Ellis, A., Susperreguy, M.I., Purpura, D.J., & Davis-Kean, P.E. (2021). Conceptual Replication and Extension of the Relation Between the Number Line Estimation Task and Mathematical Competence Across Seven Studies. Journal of Numerical Cognition, 7(3), 435-452. https://doi.org/10.5964/jnc.7033
Ahmed, S.F., Ellis, A., Ward, K.P., Chaku, N., & Davis-Kean, P.E. (revise and resubmit). Charting the Functional Form of Short Term and Working Memory in Two Nationally-Representative Samples. Preregistered at https://osf.io/4pvwk and preprint available at https://psyarxiv.com/yqdg6/
Ellis, A., Cosso, J., Duncan, R.J., Susperreguy, M.I., Simms, V., & Purpura, D.J. (under review). Assessing the Measurement of the Home Mathematics Environment Across Countries. Preregistered at https://osf.io/c5h7x/
Home and School Contexts
Which aspects of the home and school contexts contribute to the development of children’s early mathematical skills?
Hornburg, C. B., Borriello, G. A., Kung, M., Lin, J., Litkowski, E., Cosso, J., Ellis, A., King, Y. A., Zippert, E. L., Cabrera, N. J., Davis-Kean, P. E., Eason, S. H., Hart, S. A., Iruka, I. U., LeFevre, J.-A., Simms, V., Susperreguy, M. I., Cahoon, A., Chan, W. W. L., … Purpura, D. J. (2021). Next Directions in Measurement of the Home Mathematics Environment: An International and Interdisciplinary Perspective. Journal of Numerical Cognition, 7(2), 195-220. https://doi.org/10.5964/jnc.6143
Ellis, A. & Davis-Kean, P.E. (in prep). The Role of Classroom Instruction in the Development of Early Number Skills.
King, Y.A., Zippert, E.L., Ellis A., O’Rear, C.D., Lin, J., Purpura, D.J. (in prep). Accuracy of Parent and Teacher Ratings of Preschoolers’ Specific Mathematics Skills.
Addie, A.*, Ellis, A., & Davis-Kean, P.E. (in prep). The Use of Teacherese in the Classroom.
Alexa Ellis, PhD 