The Development of Web-based Instruction for Review on Introductionto Computer Graphicsfor Certificate Student

Abstract

The purposes of this research wereto 1) develop and find efficiency ofWeb-based Instruction (WBI) for Review on Introduction to Computer Graphics for Certificate Student and 2) to compare pretest and posttest achievement scores of subjects learning with WBI for Review on Introduction to Computer Graphics. The sample consisted of the vocational certificate student on business computer in Chachoengsao Vocational College on academic year 2557by the sampling method (Cluster Sampling) 2 classesoverall 60 students. The Instruments of research were WBIfor Review on Introduction to Computer Graphics, the quality evaluation form of WBI and an achievement test having the IOC between 0.67 to 1.00, the difficulty is between 0.33to0.70, the discrimination is between 0.33 to 0.67 and the reliability was 0.91. The statistics for analysis weremean, standard deviation and t-test for dependent samples. The results of this study were 1) the quality of WBI on content and media production was very good ( = 4.52). 2) Theefficiency WBI was 83.67/88.80 3) The learning achievement after the lesson through WBI for reviewing was statistic substantial higher than this before the lesson at .01