Yogyakarta – Friday, November 15th, 2019. The Master of Science and Doctoral Program, Faculty of Economics and Business, Universitas Gadjah Mada (MD FEB UGM) held a public lecture theme Research Method with the title “Estimating and Interpreting more Complex Relationships between Variables”. This activity is intended for Masters and Doctoral students with the aim of training skills in the use of research methods specifically for research in the field of Management Science. This activity was carried out with a duration of 2.5 hours and was divided into two main sessions in the form of introductions by moderators, general lectures and question and answer sessions. During the duration of the public lecture, participants are invited to analysis tools that are important in a regression including moderation and interpretation of outputs equipped with regression results using statistical software, STATA.
Associate Professor Erik A. Mooi, a lecturer at the Faculty of Business and Economics, The University of Melbourne was present as a guest speaker at this public lecture. With a research interest in the field of Management and Marketing, Erik A. Mooi tried to explain that the regression originated from Sir Francis Galton’s observations which were generally presented in the form of notation and visuals to explain a particular phenomenon. Like for example to explain the relationship between “advertising with the level of sales” or even allows us to answer questions such as “whether price cuts are related to increased sales”.
However, in the regression process problems can be found such as relationships between more complex variables that can be overcome by new techniques other than the U-Shape distribution, for example by eliminating outliers or end points from the distribution. Furthermore, to explain certain phenomena researchers can use variable moderation techniques. Moderator variables are variables that change the direction or strength of the relationship between predictors and outcomes. Thus, the regression model becomes more complex when the term (multiplicative) interaction is added.
From the whole process, participants were enthusiastic in participating in the lecture activities as evidenced by the critical questions in the question and answer session. Associate Professor Erik A. Mooi closed the lecture by affirming that “there are two (related) ways of asking and answering more interesting questions. They are likely interesting because these help non-obvious questions. ” Until finally the activity was closed by handing over mementos and photos together. (RP)