Observation (Observation).Is a process that the observed data by recording the behavior or group or an ฎการ experience in a situation that relevant to the study based on the sense of 'observation were used to show up.The knowledge or information for use in education.The data also depends on perception. Attitude as well as the experience of the observer. Therefore, observational data are accurate, reliable or not depends on how it is important ตัวผู้สังเกต