Supplementary materials to: The real preschoolers of Orange County: Early number learning in a diverse group of children

Supplementary materials to: Sarnecka, B. W., Negen, J., Scalise, N. R., Goldman, M. C., & Rouder, J. N. (2023). The real preschoolers of Orange County: Early number learning in a diverse group of children. Journal of Numerical Cognition, 9(1), 65–88. https://doi.org/10.5964/jnc.6577 The Supplementary Materials contain the following items: Participants' household incomes by preschool type (Table S1). Descriptive statistics on vocabulary and numeracy measures, by child age (Table S2). Floor and ceiling effects observed on numeracy tasks (Table S3). Multiple linear regression models for each numerical skill and the amount of variance explained by each model (Table S4). Entailment relations among symbolic number skills, with a child's performance coded as "proficient" on the numeral identification task if they identified 6 or more numerals (Figure S1).