Didactical Process Analysis (DPA)
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The DPA-project aimed to identify main structures in the teaching process, and to study the relationships between process variables and product variables. The following types of variables were included: 1) Environmental variables, 2) Teacher characteristics, 3) Pupil characteristics, 4) The teaching process, and 5) Teaching products (cognitive and non-cognitive pupil changes). The study was conducted using a predetermined observation diagram for identifying different behaviour categories. The project included 80 teachers, one for each school class, and their pupils from schools in Gothenburg and its neighbouring municipalities. Among the 80 classes, 60 were regular classes and 20 classes were remedial classes. For the collection of process data, 10 lessons divided over five different subjects for each class were video as well as audio recorded. The collection of other data involved questionnaires, tests measuring aptitudes, attitudes and personality, and public records of school size, grades in 3rd grade and the teachers’ age, year of service and ratings. The lessons were documented through time-sampled video supplemented by continuous audio recordings. Each teacher was recorded for about 120 minutes, corresponding to 10-12 minutes per lesson. Altogether, there are around 150 hours of video recordings and 600 hours of audio recordings. The video recording was filmed with two video cameras in the classroom; one with wide angle towards the class, and one remote moving camera that followed the teacher. Audio was recorded with a fixed microphone mounted in the ceiling as well as a wireless microphone borne by the teacher. The idea was that the recording devices to a minimum extent would affect the natural course of events in the class room. DPA offers a unique collection of material that provides possibilities to study socialisation processes, learning, teaching, and a number of other phenomena from a historical and comparative perspective. The target group for the database is primarily researchers within the educational research domain, but this sort of video and audio recordings are also suitable for research in other fields and disciplines such as sociology, linguistics, and history. Purpose: The objectives of the DPA project can be formulated in the following points: 1) to identify the main structures in the teaching process, 2) to study the relation between condition variables and the teaching process, 3) to study correlations between process and product variables, 4) to study correlations between teacher characteristics, pupil characteristics, and teaching effects, 5) to compare process structures in different school subjects, and 6) to compare process structures in different school environments (e.g. regular classes and remedial classes). The material consists of video and audio files; Audio, uncompressed, wav format (1.23 TB); Audio, compressed, MP3 format (71.4 GB); Video, uncompressed, mov format (1.81 TB); Video, compressed, MP4 format (123 GB). In order video and audio are delivered in compressed format (total 194 GB), together with the documentation. Uncompressed files can be delivered on demand .
DPA项目旨在识别教学过程中的核心结构，并探究过程变量与产出变量之间的关联。本研究纳入以下五类变量：1）环境变量；2）教师特征；3）学生特征；4）教学过程；5）教学产出（学生认知与非认知层面的变化）。 本研究采用预设观察编码图以区分不同行为类别。该项目共纳入80名教师（每位教师对应一个教学班）及其所在哥德堡及周边自治市学校的学生。80个教学班中，60个为常规教学班，20个为补习教学班。 为收集过程类数据，研究者为每个教学班录制了覆盖5门不同学科的10堂课的音视频素材。其余数据则通过问卷、能力倾向测试、态度与人格测试，以及学校规模、三年级成绩、教师年龄、教龄与评价等公开档案采集。 课堂教学通过时间采样视频辅以连续音频录制的方式进行记录。每位教师的录制时长约为120分钟，对应每堂课10至12分钟。总计约有150小时的视频素材与600小时的音频素材。 视频录制采用两台教室摄像机：一台为面向全班的广角摄像机，另一台为跟随教师的远程移动摄像机。音频采集则通过安装在天花板的固定麦克风与教师佩戴的无线麦克风完成。本方案力求将录制设备对教室自然教学进程的影响降至最低。 DPA项目拥有一套独特的素材集合，为从历史与比较视角研究社会化进程、学习、教学及诸多其他现象提供了可能。该数据库的目标用户主要为教育研究领域的研究者，此类音视频素材同样适用于社会学、语言学、历史学等其他学科领域的研究。 DPA项目的研究目标可归纳为以下六点：1）识别教学过程的核心结构；2）探究条件变量与教学过程之间的关联；3）研究过程变量与产出变量间的相关性；4）探究教师特征、学生特征与教学效果之间的相关性；5）对比不同学科的教学过程结构；6）对比不同教学环境（如常规教学班与补习教学班）的教学过程结构。 本数据集包含音视频文件：非压缩音频（WAV格式，1.23 TB）、压缩音频（MP3格式，71.4 GB）、非压缩视频（MOV格式，1.81 TB）、压缩视频（MP4格式，123 GB）。用户可获取压缩格式的音视频素材（总容量194 GB）及配套文档，非压缩素材可按需提供。
