Surveys require data analysis using some statistical methods. Surveys result in numbers, percentages, averages and other mathematical devices that show how a population looks, behaves, thinks, or reacts. Surveys and questionnaires are some of the most often used methods of doing research. Certain curricula come with standard questionnaires to be used. Surveys are often borrowed from another agency and adapted.
Surveys begin with a written questionnaire and are conducted in a systematic manner.
For example, the same survey is conducted with many different persons. Often, at the end of a survey, time is left for open-ended questions that may elicit longer responses. While surveys are the most common tool for evaluation, they are also expensive, time-intensive, and practically useless if not done well. This will not only ease the burden on participants, it will also help with staff efficiency. Agencies should have a clear idea of what exactly they want to measure and whether or not they have realistic expectations from their clients and program.