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CLOSE WINDOW |
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| Multimedia Database | |||
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| The two videotapes from each lesson (i.e., from the teacher and student cameras) were compressed into MPEG-1 format and stored on a video server. Then, the videos and supplementary materials were entered into vPrism, a multimedia database software developed for the TIMSS 1995 Video Study and enhanced for the TIMSS 1999 Video Study.
Once the videotaped lessons were digitized, entered into vPrism, and made accessible through the network server, translators/transcribers carefully reviewed each one and produced a full English transcript of all classroom interaction audible on the tape. These transcripts were incorporated into the vPrism software. One important feature of this software is that the transcripts can be linked by time code to the video. Viewers can watch either the teacher or student tape, and see a running English translation. They can also enter codes into the vPrism database, and directly access the supplementary materials. For more details, download this document: TIMSS 1999 Video Transcription Manual |
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