The Effectiveness of an Online Case-Based Collaborative Learning (CBCL) Module for a Business English Communication Course
Dr. MantanaMeksophawannagul, Asst. Professor Dr. KulapornHiranburana

Abstract
The objectives of this article are to discuss the construction and development of an online case-based collaborative learning (CBCL) theoretical model and to evaluate the quality of the developed module after it was implemented first for one week and then subsequently for onesemester. The participants of the study were 22 students from the Faculty of Business, Rajamangala Institute of Technology Lanna, Lampang Campus,(RMUTLL),Lampang, Thailand. The quality of the developed module was then assessed qualitatively and quantitatively for one semester with the 22 participants. Quantitative data were analyzed via analysis of arithmetic means, t-test dependent sample,the effect size (ES) on students’ gained scores,and level of effectiveness index (E1/E2). Qualitative data were investigated using a semi-structured interview.The findings showed that the developed module was effective since the students’ listening and reading skills had improved. The findings confirmed the quality of the developed module since the students viewed it as a good language course. The students also had positive attitudes towards the CBL method and the collaborative learning (CL) settings. Discussion and implications of the module are included.

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