A reliable survey is a research tool designed to gather accurate information from a specific group of people. It uses structured questions to ensure that responses are consistent and can be analyzed effectively. The reliability of a survey depends on factors like sample size, question clarity, and the method of data collection. To achieve reliable results, researchers often use random sampling techniques, which help to represent the larger population. Additionally, well-designed surveys minimize bias and ensure that questions are neutral. This approach allows for more trustworthy insights into opinions, behaviors, or trends related to a particular topic, such as public health or consumer preferences.