There has been much research done for finding or describing synergy effect when more than one institution, drug, or promotion works together. Most of works just describing synergy effect based on descriptive statistics or multivariable regression mode...
There has been much research done for finding or describing synergy effect when more than one institution, drug, or promotion works together. Most of works just describing synergy effect based on descriptive statistics or multivariable regression model with interaction term. These procedures focused on literature about synergy or howtwo agents interact with each other. The purpose of the study presents simple statistical method to determine if there is synergy when two promotions used together to stimulate study subjects. A case example was analyzed by presented method and the study found that the presented method was applicable to finding if there is synergy effect.