Testing Validity and Reliability of Local Products Using the Digital Market Mouth to Mouth Abouth Purchase Decisions Consumer

This research is accompanied by accurate data collection. The processed data is cross section data or cross data where the data consists of one object but requires other sub objects. The cross-section data is then processed using statistical methods so that the authors will obtain results and can provide conclusions on the results of this study. The research data is taken from the respondents' answers (the number of customers who use e-commerce applications. The minimum required in this study amounted to 97.75 respondents. Data analysis technique Data analysis techniques are directed to answer the problem with a framework and formulation of the problem as well as hypotheses that can be concluded. by using data analysis data in this research method, with the Structural Equation Model approach, which is based on Partial Least Square. The questionnaire is a data collection questionnaire to analyze attitudes, beliefs, knowledge and characteristics of several people in an environment that affect an existing system. The questionnaire is a list of questions asked to people called respondents. Each item of questions made in the questionnaire must be valid in order to measure what is intended to be measured. In addition, the questionnaire must also be reliable, which means it will produce consistent results over time so that the questionnaire can be trusted or relied on.