有没有相关的论文或文献参考？
这个数据集是基于什么背景创建的？
数据集的作者是谁？
能帮我联系到这个数据集的作者吗？
这个数据集如何下载？
Trends in International Mathematics and Science Study (TIMSS) 2015 Grade 9: Science teacher (BTS) - South Africa as one of 39 countries|教育评估数据集|教师背景数据集
收藏DataCite Commons2025-01-27 更新2024-07-13 收录
下载链接：
https://hsrc-repository.figshare.com/articles/dataset/1511166178
下载链接
链接失效反馈资源简介：
Description:
This data set contains science teacher responses to the teacher background questionnaire, i.e. school emphasis on academic success, school environment, about being a teacher, about teaching the TIMSS class, etc. All science teachers were required to complete this questionnaire.
The data set has 215 variables and was completed by 331 teachers.
Of the 300 sampled schools, 292 schools was realised providing a response rate of 97%.
Abstract:
TIMSS is a cross-national assessment of mathematics and science knowledge of fourth and eighth grades and includes 53 countries. The Grade 9 mathematics and science assessment included 39 countries. It is conducted by the International Association for the Evaluation of Educational Achievement (IEA) every four years since 1995. South Africa took part in five cycles of TIMSS i.e. in 1995, 1999, 2003, 2011 and 2015 with fieldwork being conducted in August/September 2015.
The Human Sciences Research Council (HSRC) administered the study in 292 schools and assessed 12514 learners across South Africa. To prevent a cluster of scores at the lower end of the scale and to ensure sufficient variance in the data for robust analyses; TIMSS was administered to grade 9 learners in South Africa. As part of the TIMSS study mathematics and science tests and background questionnaires are administered to an intact randomly selected grade 9 class within a sampled school.
TIMSS uses the results from the tests and questionnaires which are administered to learners, teachers and principals to determine the achievement scores as well as the factors associated with academic success. One of the main aims of the study is to measure the health of the education systems for a particular country.
This data set contains science teacher responses to the teacher background questionnaire, i.e. school emphasis on academic success, school environment, about being a teacher, about teaching the TIMSS class, etc. All science teachers were required to complete this questionnaire.
提供机构：
HSRC - Human Science Research Council SA
创建时间：
2017-12-18
数据主题
5,000+
优质数据集
54 个
任务类型
进入经典数据集
热门数据集
AgiBot World
为了进一步推动通用具身智能领域研究进展，让高质量机器人数据触手可及，作为上海模塑申城语料普惠计划中的一份子，智元机器人携手上海人工智能实验室、国家地方共建人形机器人创新中心以及上海库帕思，重磅发布全球首个基于全域真实场景、全能硬件平台、全程质量把控的百万真机数据集开源项目 AgiBot World。这一里程碑式的开源项目，旨在构建国际领先的开源技术底座，标志着具身智能领域 「ImageNet 时刻」已到来。AgiBot World 是全球首个基于全域真实场景、全能硬件平台、全程质量把控的大规模机器人数据集。相比于 Google 开源的 Open X-Embodiment 数据集，AgiBot World 的长程数据规模高出 10 倍，场景范围覆盖面扩大 100 倍，数据质量从实验室级上升到工业级标准。AgiBot World 数据集收录了八十余种日常生活中的多样化技能，从抓取、放置、推、拉等基础操作，到搅拌、折叠、熨烫等精细长程、双臂协同复杂交互，几乎涵盖了日常生活所需的绝大多数动作需求。
github 收录
poi
本项目收集国内POI兴趣点，当前版本数据来自于openstreetmap。
github 收录
TCIA
TCIA（The Cancer Imaging Archive）是一个公开的癌症影像数据集，包含多种癌症类型的医学影像数据，如CT、MRI、PET等。这些数据通常与临床和病理信息相结合，用于癌症研究和临床试验。
www.cancerimagingarchive.net 收录
UniMed
UniMed是一个大规模、开源的多模态医学数据集，包含超过530万张图像-文本对，涵盖六种不同的医学成像模态：X射线、CT、MRI、超声、病理学和眼底。该数据集通过利用大型语言模型（LLMs）将特定模态的分类数据集转换为图像-文本格式，并结合现有的医学领域的图像-文本数据，以促进可扩展的视觉语言模型（VLM）预训练。
github 收录
Canadian Census
**Overview** The data package provides demographics for Canadian population groups according to multiple location categories: Forward Sortation Areas (FSAs), Census Metropolitan Areas (CMAs) and Census Agglomerations (CAs), Federal Electoral Districts (FEDs), Health Regions (HRs) and provinces. **Description** The data are available through the Canadian Census and the National Household Survey (NHS), separated or combined. The main demographic indicators provided for the population groups, stratified not only by location but also for the majority by demographical and socioeconomic characteristics, are population number, females and males, usual residents and private dwellings. The primary use of the data at the Health Region level is for health surveillance and population health research. Federal and provincial departments of health and human resources, social service agencies, and other types of government agencies use the information to monitor, plan, implement and evaluate programs to improve the health of Canadians and the efficiency of health services. Researchers from various fields use the information to conduct research to improve health. Non-profit health organizations and the media use the health region data to raise awareness about health, an issue of concern to all Canadians. The Census population counts for a particular geographic area representing the number of Canadians whose usual place of residence is in that area, regardless of where they happened to be on Census Day. Also included are any Canadians who were staying in that area on Census Day and who had no usual place of residence elsewhere in Canada, as well as those considered to be 'non-permanent residents'. National Household Survey (NHS) provides demographic data for various levels of geography, including provinces and territories, census metropolitan areas/census agglomerations, census divisions, census subdivisions, census tracts, federal electoral districts and health regions. In order to provide a comprehensive overview of an area, this product presents data from both the NHS and the Census. NHS data topics include immigration and ethnocultural diversity; aboriginal peoples; education and labor; mobility and migration; language of work; income and housing. 2011 Census data topics include population and dwelling counts; age and sex; families, households and marital status; structural type of dwelling and collectives; and language. The data are collected for private dwellings occupied by usual residents. A private dwelling is a dwelling in which a person or a group of persons permanently reside. Information for the National Household Survey does not include information for collective dwellings. Collective dwellings are dwellings used for commercial, institutional or communal purposes, such as a hotel, a hospital or a work camp. **Benefits** - Useful for canada public health stakeholders, for public health specialist or specialized public and other interested parties. for health surveillance and population health research. for monitoring, planning, implementation and evaluation of health-related programs. media agencies may use the health regions data to raise awareness about health, an issue of concern to all canadians. giving the addition of longitude and latitude in some of the datasets the data can be useful to transpose the values into geographical representations. the fields descriptions along with the dataset description are useful for the user to quickly understand the data and the dataset. **License Information** The use of John Snow Labs datasets is free for personal and research purposes. For commercial use please subscribe to the [Data Library](https://www.johnsnowlabs.com/marketplace/) on John Snow Labs website. The subscription will allow you to use all John Snow Labs datasets and data packages for commercial purposes. **Included Datasets** - [Canadian Population and Dwelling by FSA 2011](https://www.johnsnowlabs.com/marketplace/canadian-population-and-dwelling-by-fsa-2011) - This Canadian Census dataset covers data on population, total private dwellings and private dwellings occupied by usual residents by forward sortation area (FSA). It is enriched with the percentage of the population or dwellings versus the total amount as well as the geographical area, province, and latitude and longitude. The whole Canada's population is marked as 100, referring to 100% for the percentages. - [Detailed Canadian Population Statistics by CMAs and CAs 2011](https://www.johnsnowlabs.com/marketplace/detailed-canadian-population-statistics-by-cmas-and-cas-2011) - This dataset covers the population statistics of Canada by Census Metropolitan Areas (CMAs) and Census Agglomerations (CAs). It is categorized also by citizen/immigration status, ethnic origin, religion, mobility, education, language, work, housing, income etc. There is detailed characteristics categorization within these stated categories that are in 5 layers. - [Detailed Canadian Population Statistics by FED 2011](https://www.johnsnowlabs.com/marketplace/detailed-canadian-population-statistics-by-fed-2011) - This dataset covers the population statistics of Canada from 2011 by Federal Electoral District of 2013 Representation Order. It is categorized also by citizen/immigration status, ethnic origin, religion, mobility, education, language, work, housing, income etc. There is detailed characteristics categorization within these stated categories that are in 5 layers. - [Detailed Canadian Population Statistics by Health Region 2011](https://www.johnsnowlabs.com/marketplace/detailed-canadian-population-statistics-by-health-region-2011) - This dataset covers the population statistics of Canada by health region. It is categorized also by citizen/immigration status, ethnic origin, religion, mobility, education, language, work, housing, income etc. There is detailed characteristics categorization within these stated categories that are in 5 layers. - [Detailed Canadian Population Statistics by Province 2011](https://www.johnsnowlabs.com/marketplace/detailed-canadian-population-statistics-by-province-2011) - This dataset covers the population statistics of Canada by provinces and territories. It is categorized also by citizen/immigration status, ethnic origin, religion, mobility, education, language, work, housing, income etc. There is detailed characteristics categorization within these stated categories that are in 5 layers. **Data Engineering Overview** **We deliver high-quality data** - Each dataset goes through 3 levels of quality review - 2 Manual reviews are done by domain experts - Then, an automated set of 60+ validations enforces every datum matches metadata & defined constraints - Data is normalized into one unified type system - All dates, unites, codes, currencies look the same - All null values are normalized to the same value - All dataset and field names are SQL and Hive compliant - Data and Metadata - Data is available in both CSV and Apache Parquet format, optimized for high read performance on distributed Hadoop, Spark & MPP clusters - Metadata is provided in the open Frictionless Data standard, and its every field is normalized & validated - Data Updates - Data updates support replace-on-update: outdated foreign keys are deprecated, not deleted **Our data is curated and enriched by domain experts** Each dataset is manually curated by our team of doctors, pharmacists, public health & medical billing experts: - Field names, descriptions, and normalized values are chosen by people who actually understand their meaning - Healthcare & life science experts add categories, search keywords, descriptions and more to each dataset - Both manual and automated data enrichment supported for clinical codes, providers, drugs, and geo-locations - The data is always kept up to date – even when the source requires manual effort to get updates - Support for data subscribers is provided directly by the domain experts who curated the data sets - Every data source’s license is manually verified to allow for royalty-free commercial use and redistribution. **Need Help?** If you have questions about our products, contact us at [info@johnsnowlabs.com](mailto:info@johnsnowlabs.com).
Databricks 收录