Schools Apparent Retention Rates, Victoria

A dataset of schools apparent retention rates or ARR, all school sector in Victoria, from census year 2012 to 2023.This dataset is prepared and based on data collected from schools as part of the February School Census conducted on the last school day of February each year. It presents information for all government and non-government schools and student enrolments in Victoria, in particular secondary school years. The majority of the statistical data in this publication is drawn from school administration systems. The dataset includes analysis by school sector and sex, Koorie status, as well as on government schools by region.Apparent retention rates (ARR) are calculated based on aggregate enrolment data and provide an indicative measurement of student engagement in secondary education. The Department of Education and Training (DET) computes and publishes ARR data at a state-wide and DET region level only.The term "apparent" retention rate reflects that retention rates are influenced by factors not taken into account by this measure such as: Student repeating year levels, Interstate and overseas migration, Transfer of students between education sectors or schools, Student who have left school previously, returning to continue their school education.The ARR for year 7 to 12 (ARR 7-12) refers to the Year 12 enrolment expressed as a proportion of the Year 7 enrolment five years earlier. The ARR for year 10 to 12 (ARR 10-12) refers to the Year 12 enrolment expressed as a proportion of the Year 10 enrolment two years earlier.Please note that the ABS calculates apparent retention using the number of full-time school students only whereas at the DET we use the number of full-time equivalent school enrolments. Data reported in the ABS Schools, Australia collection is based on enrolment data collected in August by all jurisdictions.The Department has found that computing ARR at geographical areas smaller than DET regions (e.g. LGA, Postcode) can produce erratic and misleading results that are difficult to interpret or make use of. In small populations, relatively small changes in student numbers can create large movements in apparent retention rates. These populations might include smaller jurisdictions, Aboriginal and Torres Strait Islander students, and subcategories of the non-government affiliation. There are a number of reasons why apparent rates may generate results that differ from actual rates. Apparent retention rates provide an indicative measure of the number of full-time school students who have stayed in school, as at a designated year and grade of education. It is expressed as a percentage of the respective cohort group that those students would be expected to have come from, assuming an expected rate of progression of one grade per year.Provided ARR is a result of calculation of the whole census and is NOT to be re-calculated by average or sum.

学校表观保留率（apparent retention rates，简称ARR）数据集，涵盖维多利亚州所有学校类别2012至2023年普查年度的数据。本数据集基于每年2月最后一个教学日开展的2月学校普查（February School Census）中从学校收集的数据编制而成。它呈现了维多利亚州所有公立和非公立学校及学生入学情况的信息，尤其侧重于中学学段。本数据集所含统计数据大多源自学校管理系统。数据集包含按学校类别、性别、库瑞族身份（Koorie status）进行的分析，以及公立学校按区域的分析。

表观保留率（ARR）基于汇总入学数据计算得出，是学生中学教育参与度的指示性测量指标。教育与培训部（Department of Education and Training，简称DET）仅在全州及DET区域层面计算并发布ARR数据。

“表观”保留率这一术语反映出，该保留率受本测量方法未考虑的因素影响，例如：学生留级、州际及海外迁移、学生在不同教育类别或学校间转学、曾离校后重返校园继续学业的学生。

7至12年级表观保留率（ARR 7-12）指12年级入学人数占五年前7年级入学人数的比例；10至12年级表观保留率（ARR 10-12）指12年级入学人数占两年前10年级入学人数的比例。

请注意，ABS仅使用全日制在校学生人数计算表观保留率，而DET则使用全日制等效入学人数。ABS《澳大利亚学校》（Schools, Australia）数据集中报告的数据基于所有司法管辖区8月收集的入学数据。

DET发现，在小于DET区域的地理范围（如地方政府区域（LGA）、邮政编码）计算ARR可能产生不稳定且具误导性的结果，难以解读或利用。在小群体中，学生人数的相对微小变化可能导致表观保留率的大幅波动。这些群体可能包括较小的司法管辖区、原住民和托雷斯海峡岛民学生，以及非公立学校附属类别的子类别。

表观保留率与实际保留率产生差异的原因有多种。表观保留率是指定学年和年级中仍在校的全日制学生人数的指示性测量指标。它以假设每年升级一个年级的预期进度下，这些学生本应来自的相应队列群体的百分比表示。

所提供的ARR是全普查计算的结果，不得通过平均或求和重新计算。