Today, social media is enjoying an incredible phenomenon of triumph in term of acceptance and has transformed the method how publics connect and communicate one another. Many surveys show that the figure of social media end users has been increasing from a year to year. Ultimately, social media influences consumers behavior, social media causes paradigm shift from traditional communication, people referring to information existing on social media to make a purchase. Nonetheless, trust became another issue among the increasing of social media usage. Various studies
have been conducted to investigate how social media influences consumer to behave, however none of that studies address impacts of social media on consumer purchase decision as whole stages where begins with problem recognition. Next stage is information search, then evaluation of alternatives followed by product choice and finally outcomes/post purchase evaluation. A research framework is constructed on the preceding studies on impacts of social media on decision-making. A quantitative methodological approach is applied to this research by means of a survey technique. The data has been successfully gathered from a sample of 124 students of Universiti Malaysia Kelantan (UMK) in Kelantan. In order to examine the proposed research framework, the researcher uses several analyzes such as descriptive analysis and Regression analysis. Pearson correlation analysis is also conducted to test the hypotheses. The results of this empirical research demonstrate that social media has a significant impact on consumers’ decision-making such as purchase decision. Furthermore, this research also revealed that the level of consumers’ trust in information interrelated to decision-making on social media can be considered as reasonably high.