Development of Web-based Instruction for Reviewon Database System For Vocational Certificate Students

Abstract

The  purposes of this research were 1) to development and find quality of WBI for review on database system in electronic data processing subject. 2) to find efficiency and to make comparison of learning achievement pre-study and post-study of WBI   for review. Sample used in this study were 2 classrooms of the vocational diploma students in second semester 2013 selected by cluster sampling and divided by simple random sampling, the 2^ndclassroom for study the efficiency of WBI for Review on Computer Network in Fundamental  Data processing Subject  and the 1^st classroom for comparison of pre-study and post-study achievement by WBI for Review on Computer  Network  in  Fundamental  Data processing Subject. Tools for the research were consisted the quality evaluation form of WBI Lesson and achievement test of learning with difficulty level ranging from 0.35 to 0.75, the discrimination level from 0.20 to 0.50 and the Reliability levels 0.83. Data were analyzes means, standard deviation, E₁/E₂formulaand t-test for related samples. The research result were 1) The quality of WBI for review lesson contents was at good level ( =4.17) and the technique of media production was at good level ( =4.31) 2) WBI for review was effectual as E₁/E₂=80.13/82.93 and 3) Achievement of learning after using of WBI Lesson was statistical significant higher than before learning at 0.05 level.