The Creation of Sensor Light A 3 Minutes Step Up and Down

Abstract

This research aimed to create a 3-minute step up and down tester with a sensor light that possessed validity, reliability, and objectivity. The target population consisted of 15 track and field athletes (10 males, 5 females) from Ramkhamhaeng University Demonstration School, competing in the 100-meter, 200-meter, and 400-meter events, aged 13–18 years, and 15 students (10 males, 5 females) enrolled in the course RPE 2801 Principles and Methods of Teaching Physical Fitness Enhancement, aged 19-29 years. Participants were selected using a purposive sampling method.
Research Results The results of the performance test of the 3-minute step up and down tester with a light sensor showed that the instrument's quality in terms of validity was confirmed by experts who considered all five relevant aspects of validity. When considering the overall average, the instrument used was found to have a validity coefficient of. The tester demonstrated high reliability by comparing the base value (mode) of the staff's manual count with the frequency counted by the tester, which were congruent. The objectivity of the test was examined by switching different groups of users to participate in the test. The values obtained from the staff's manual count and the values counted by the tester were equal. The correlation coefficient of validity was and the objectivity index was.
Hence, the 3-minute step up and down tester with a sensor light is suitable for assessing physical fitness, specifically cardiovascular and respiratory endurance.