The Academic Development Study of Australian Twins was established in 2012 with the purpose of investigating the relative influence of genes and environments in literacy and numeracy capabilities across two primary and two secondary school grades in Australia. It is the first longitudinal twin project of its kind in Australia and comprises a sample of 2762 twin pairs, 40 triplet sets and 1485 nontwin siblings. Measures include standardized literacy and numeracy test data collected at Grades 3, 5, 7 and 9 as part of the National Assessment Program: Literacy and Numeracy. A range of demographic and behavioral data was also collected, some at multiple longitudinal time points. This article outlines the background and rationale for the study and provides an overview for the research design, sample and measures collected. Findings emerging from the project and future directions are discussed.

中文翻译：

---

澳大利亚双胞胎的学术发展研究（ADSAT）：研究目的和设计

澳大利亚双胞胎学术发展研究成立于 2012 年，旨在调查基因和环境对澳大利亚两个小学和两个中学年级读写和计算能力的相对影响。这是澳大利亚第一个此类纵向双胞胎项目，包括 2762 对双胞胎、40 对三胞胎和 1485 对非双胞胎兄弟姐妹的样本。措施包括在 3、5、7 和 9 年级收集的标准化识字和算术测试数据，作为国家评估计划的一部分：识字和算术。还收集了一系列人口统计和行为数据，其中一些是在多个纵向时间点。本文概述了研究的背景和基本原理，并概述了研究设计、样本和收集的措施。