การสร้างและหาประสิทธิภาพของชุดทดลองอิเล็กทรอนิกส์เรื่องวงจรขยายค่าความนำถ่ายโอน

Abstract

The purposes of this study 1) to construction and finding of the efficiency of experimental set electronics in the Topic of Operational Transconductance Amplifier, 2) to compare the mean scores between the pre-learning and post-learning, 3) to compare the learning Retention, 4) to analyze the correlation of the GPA (Y) and the mean scores post-learning (X) and evaluating Experimental Set satisfaction. The sample of this study was 20 on electronics technology program, Faculty of Industrial Technology, Buriram Rajabhat University, in Electronics Circuits course in the semester 1/2017. Which was divided into two parts : experimental Set and laboratory Sheet. Pre-test and post-test were used to collect the data. The subjects were tested again two weeks after the experiment was over. The Results of research found that the efficiency of the Experimental Set was 84.62/83.20, which was higher than the set criteria of 80/80. The comparison of the post-test mean scores was = 19.55 with S.D = 2.13 higher than that of the pre-test scores was = 8.28 with S.D = 1.78 at a significance level of .05. The comparison the learning Retention the difference of the mean scores was ∆ = 3.30. Regarding the correlation between the scores GPA (Y) and the mean scores post-learning (X), it was found that the correlation of the scores was 0.67, which was quite high. The student were satisfied in the Experimental set at the mean high level = 4.42 with S.D =0.72.