Development of Instruments to Measuring Feasibility of Context-Based Videos of Sound

This study was aim to produce a valid instrument that can measure the quality of the context-based video of the sound. Instruments that had been developed include: physics learning expert validation instrument, physicist validation instruments, linguist validation instruments, teacher practicality instruments, student practicality instruments, critical thinking skills instruments, creative thinking skills instruments, collaboration skills instruments, and communication skills instruments both oral and writing. This research uses the ADDIE development model which consists of five stages. Data analysis for validity refers to the Aiken's V coefficient where the instrument is valid if it is validity coefficient ≥ 0.6. The validation coefficient given by the expert for each instrument is as follows: the learning physics instrument 0.90, the physicist validation instrument was 0.91, the linguist validation instrument was 0.77, the teacher practicality instrument was 0.97, the student practicality instrument was 0 , 87, instruments of critical thinking skills of 0.91, instruments of creative thinking skills of 0.93, instruments of collaboration skills of 0.99, instruments of oral communication skills of 0.98, and instruments of written communication skills of 0.90. All of instruments are valid, so the instrument can be used to measure the quality of the instructional video of sound.