Methodology of research Identify the steps and how to explicitlyA research of the description (Descrittive research) to study the prevalence of the elderly with dementia, education level and ability to perform daily routines of the elderly with dementia using a simple sampling method (Simple random sampling) is that the population of the elderly in the district, amphur Muang, Nakhon Ratchasima province, all. The number of people from a given 32162 sample size by using the formula of theerawut El shift gulls (2543 (2000).) that said if the population size is the primary use of thousands of samples of at least 5%, so the sample size is equal to the number of people in 1610 when the samples. Using simple random method (Simple random sampling) by lottery has hospital health promotion t. khanai. Baan Koh, amphur Muang, Nakhon Ratchasima province, where there are elderly people in all responsibilities from 1377 to determine the sample size using the formula of the drug came to ne. For example, if a group of thousands. Using a sample of 10% of the sample size will be equal to 325 people, researchers do collect data for a period of 1 month from October to November, 2557 (2014) 2557 (2014)
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