Snelling Matthew, Dawes Andrew, Biersteker Linda, Girdwood Elizabeth, Tredoux Colin
Alacrity Development, Cape Town, South Africa.
Department of Psychology, University of Cape Town, South Africa.
Child Care Health Dev. 2019 Mar;45(2):257-270. doi: 10.1111/cch.12641.
Assessment of early childhood development programme effectiveness in South Africa is hampered by a lack of suitable measures that account for variations in cultural and socio-economic backgrounds and can be administered by non-professionals. This contribution reports the standardisation of the South African Early Learning Outcomes Measure (ELOM), an instrument designed for population level monitoring of the developmental status of children aged 50-69 months and for evaluation of early learning programmes.
The development of the ELOM was informed by South Africa's National Curriculum Framework from Birth to Four and its National Early Learning and Development Standards. ELOM items were drawn from reliable and valid instruments, particularly those used in Africa and other developing regions and were clustered in five domains: gross motor development, fine motor coordination and visual motor integration, emergent numeracy and mathematics, cognition and executive functioning, emergent literacy and language. The ELOM was standardised on a sample of 1,331 children aged 50-69 months, from five South African official languages and five socio-economic strata. Item Response Theory techniques were used to establish reliability, validity, and differential item functioning.
Confirmatory Factor Analysis established that ELOM domains are unidimensional and internally consistent. Items discriminate reliably between more and less able children and do not discriminate unfairly between children of the same ability from different language backgrounds. Socio-economic gradients were evident in children's performance. South African Early Learning Development Standards (ELDS) based on standard scores were developed and set at the 60th percentile of the sample standard score distribution.
This research produced the first South African, age-validated population-level standardised instrument that can be administered relatively cheaply by trained non-professionals. This will facilitate the assessment of the efficacy of early learning programmes in enabling children to reach ELDS prior to entering Grade R and track progress toward Sustainable Development Goal 4.2.
在南非,由于缺乏能够考虑到文化和社会经济背景差异且可由非专业人员实施的合适评估方法,幼儿发展项目有效性的评估受到了阻碍。本论文介绍了南非早期学习成果测评(ELOM)的标准化情况,该测评工具旨在对50至69个月儿童的发育状况进行人群层面监测,并用于评估早期学习项目。
ELOM的开发参考了南非从出生到四岁的国家课程框架及其国家早期学习与发展标准。ELOM的项目取自可靠且有效的测评工具,尤其是非洲和其他发展中地区使用的工具,共分为五个领域:大肌肉运动发展、精细动作协调与视觉动作整合、初步算术与数学、认知与执行功能、初步读写与语言。ELOM在来自南非五种官方语言和五个社会经济阶层的1331名50至69个月儿童的样本上进行了标准化。采用项目反应理论技术来确定信度、效度和项目功能差异。
验证性因素分析表明,ELOM各领域是单维且内部一致的。项目能够可靠地区分能力较强和较弱的儿童,并且不会对来自不同语言背景但能力相同的儿童进行不公平区分。儿童的表现存在明显的社会经济梯度。基于标准分数制定了南非早期学习发展标准(ELDS),并设定在样本标准分数分布的第60百分位。
本研究产生了首个经过年龄验证的南非人群层面标准化工具,经过培训的非专业人员可以相对低成本地实施该工具。这将有助于评估早期学习项目在使儿童在进入R年级之前达到ELDS方面的效果,并跟踪实现可持续发展目标4.2的进展情况。