Abstract

We examine the promise, usability, and feasibility of an intelligent tutoring system (ITS) to improve the vocabulary and language proficiency in science and social studies of Latinx second grade English learners (ELs). Participants were 217 ELs attending English only programs or bilingual programs. Findings from the clustered randomized control trial using a researcher-developed proximal assessment indicated that students who used the ITS significantly improved their vocabulary knowledge of the words taught compared to students in the comparison group (ES = 0.38). Results also indicated that most students enjoyed using the ITS and learning new words. Teachers found the program feasible and beneficial to their students.

摘要

我们研究了智能辅导系统（ITS）的前景，可用性和可行性，以提高拉丁语二年级英语学习者（EL）在科学和社会研究中的词汇和语言水平。参加活动的217名EL参加了仅英语课程或双语课程。使用研究人员开发的近端评估从聚集的随机对照试验中得出的结果表明，与对照组相比，使用ITS的学生与所教单词的词汇知识有了显着提高（ES = 0.38）。结果还表明，大多数学生喜欢使用ITS和学习新单词。教师发现该计划可行且对他们的学生有利。