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Download full textSzatrowski, Alisa; Rickel, Jessica; Rosemond, Charlie – Online Submission, 2022
Analysis of consistent Zearn Math users and a comparable group of non-users in District of Columbia Public Schools (DCPS) shows that students who used Zearn Math consistently had higher levels of academic growth than similar students with low- or no-usage. This analysis used two quasi-experimental methods, Coarsened Exact Matching (CEM) and fixed…
Descriptors: Mathematics Instruction, Public Schools, Mathematics Achievement, Teaching Methods
Peer reviewed
Direct linkXia, Lihua; Bak, Thomas H.; Vega-Mendoza, Mariana; Sorace, Antonella – Studies in Second Language Acquisition, 2023
The current study examined cognitive effects of two pathways of second language (L2) acquisition longitudinally in Chinese speakers learning English in an L2-dominant environment. Thirty-nine participants who attended an intensive 10-week English course (L2-instruction group) were compared to 38 participants who attended regular university courses…
Descriptors: Second Language Learning, Second Language Instruction, English (Second Language), Cognitive Processes
Pearson, 2021
We published our first set of Connections Academy efficacy reports containing independently assured efficacy statements in 2018. We went on to build on that body of research, and updated our reporting with new findings in 2021. Our latest study compared Connections Academy students' state test scores in reading and math with students in…
Descriptors: Comparative Analysis, Achievement Tests, Scores, Program Effectiveness
