1. primary data (Primary Data) as the data user to collect the data itself. The information is up-to-date and reliable data collection, but it would take a long time. Most people are used to charge high. Not only should2. secondary data (Secondary Data) is data that has been collected, then the user is the only person who is using the data-saving both time and money, but sometimes it is information that does not meet your needs or not enough details. In addition, users are often not aware of the errors of data that has annulled the analysis results may be erroneous.1.4 level of measurement (Level of Measurement)Most were in the research data derived from the metric measurement (Measurement) means to check one other symbol or number pad, rather than the quality or features of narue pama Temple, there are 4 levels of measurement scale.1. law noun scale (Nominal Scale or Scale Classification)The information from the naekok group or category by numbers or the values together to check, multiply, divide & add not a ta measure-level to check that the name instead of a number pad, rather than people or events instead of features, instead of things like the phone Miss boen contests.In recent years, various car registration numbers together to check number 0 represents the number 1 female rather than male. The properties of this scale is the khan then the numbers together to check will just point to the difference in the point that it is not the same thing. Does not represent any quantity or size, quality, rank, or number values together to check the add, multiply, divide rice and the quantity or quality did not point it. Some psychologists do not accept this type of measurement is the measurement (Measurement)Data obtained from measurements using standard business law (Nominal scale) male gender (female) 1.2. ethnicity (Thai, Chinese, etc.)3. religion (Buddhism, Christianity, Islam, etc.4. career teachers, students doctor.5. phone number .........................6. เลขที่บ้าน .............................
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