This chapter is made aware of a variety of methods to collect data. Advantages - Disadvantages And the bias in each method of data collection. Made aware of the impact of technology in data collection. The bias is hidden in each method of data collection. Collecting information from multiple sources. And through a variety of methods have been introduced. Ultimately, the decision was based on cost. And the care of the required research and research issues related to culture should have a reverse translation. And the researchers caution fall while collecting data from different cultures.