Children’s early language exposure impacts their later linguistic skills, cognitive abilities, and academic achievement, and large disparities in language exposure are associated with family socioecon
Purpose: The purpose of this study was to evaluate the relative contribution of socioeconomic status (SES) on three grammatical measures—finite verb morphology composite (FVMC), percent grammat
This study investigates whether publicly funded summer school programs in secondary education are of substantive meaning for the math performance of students from lower socioeconomic backgrounds. More
The dataset spans from 1960 to 2016 and consists of 174 advanced and developing countries. It is prepared to check how financial development and structure would affect fertility.
N = number of pair-wise observations (based on one randomly selected member from each twin pair); 95% confidence intervals shown in parentheses. All correlations significant at p