Data collection techniques data collection techniques use. Slovins formula gives you a ballpark figure to work with. Slovins formula is applicable only when estimating a population proportion and when the con. Population 3% 5% 7% 10% 500 a 222 145 83 600 a 240 152 86 700 a 255 158 88 800 a 267 163 89 900 a 277 166 90 1,000 a 286 169 91 2,000 714 333 185 95 3,000 811. Cara hitung rumus slovin besar sampel uji statistik. Sample size for 3%, 5%, 7% and 10% precision levels where confidence level is 95% and p. The sample size calculation for a prevalence only needs a simple formula. Nevertheless, the general features of the above hold. N should always be given, that s what you should first settle before finding the sample. Sampel of this research is nurse paramedics that use as responden.
Rumus slovin dapat dilihat berdasarkan notasi sebagai berikut. International journal of social science and economic. International journal of education and research vol. The slovins formula is quite popularly use in my country for determining the sample size for a survey research, especially in undergraduate thesis in education and social sciences, may be because. Conference series paper open access analysis of satisfaction level with servqual method using artificial neural networks to cite this article. Hence, cochrans and slovin s formulas coincide when estimating p using a 95% con. Using the slovin formula, the sample size in this study was 206 employees, distributed proportionally to all employees by position. Each stratum is then sampled as an independent subpopulation, out of which individual elements can be randomly selected. Do researchers in your country also used the socalled.
International journal of economics, commerce and management, united kingdom licensed under creative common page 3 sampling sampling is an old concept, mentioned several times in the bible. The slovin formula margin of error sample size determination. International journal of management sciences and business. It is also usually necessary to make an allowance for dropouts. The slovins formula is quite popularly use in my country for determining the. Accordingly a simple size of 252 layer poultry keeping households from 48 sectors was determined but 172 layer. The sample of this research consisted of 55 teachers taken using simple random sampling technique based on slovins formula from 123 high. Slovins formula in excel calculating survey sample size. International journal of economics, commerce and management, united kingdom licensed under creative common page 5 of distinct categories, the frame can be organized by these categories into separate strata.
Questionnaires were distributed to a sample of 360 students and were administered by trained enumerators. Use slovins formula to find out what sample of a population of 1,000 people you need to take for a survey on their soda preferences. Some textbooks also derive slovin s formula, though perhaps in a slightly. The effect of work motivation, work discipline, and. Slovins formula minimum acceptable sizes descriptive research 10 percent of the population. Some textbooks also derive slovins formula, though perhaps in a slightly.
The determine of sample size was done by using slovin formula umar, 2005 with. This study is aimed at revealing the status and gaps on knowledge, attitude, and practice of hygiene among kotebe metropolitan university. Knowledge, attitude, and practice of hygiene are very important to decrease these disease burdens especially in places like higher education institutions. The data was then analyzed using sem with the help of amos 22. However, this nonparametric formula lacks mathematical rigor ryan, 20. International journal of management sciences and business research, aug2016 issn 22268235 vol5, issue 8. Who is slovin and where and how did the slovins formula for. Research instrument used was a structured questionnaire, a five point likert scale method, while the instrument was content validated and tested using cronbachs alpha 0. Several practical issues are addressed and appropriate recommendations are given. Slovins formula provides the sample size n using the known population size n and the acceptable error value e. Accordingly a simple size of 252 layer poultry keeping households from 48 sectors was determined but 172 layer poultry farmers were finally surveyed. Asian journal of postharvest and mechanization introduction the philippines needs to accelerate agricultural mechanization as a means to attain food sufficiency, increase farm income and modernize agriculture. Practical issues in calculating the sample size for. I am trying to create the above slovins formula which is used to calculate a sample size based on the population size, confidence level and margin of error ive looked all over the web and found many formulas as to how to do this but have been.
International journal of business, economics and law, vol. The sample of this research was determined using slovins formula, generating the sample of 96 people. To get an answer, an instrument is made that is linked to a form of. Figure out what you want your confidence level to be.
For example, you might want a confidence level of 95 percent giving you an alpha level of 0. The influence of incentive towards their motivation and. For example, there is no way to calculate statistical power which tells you how likely your study distinguishes an actual effect from one of chance. Independent variables were work motivation x1, work discipline x2, and competence x3, and dependent variable was employee performance y. The influence of compensation, environment, determination and characteristic of employees to performance of employees in pt baruna nusantara eka. Slovins formula calculates the number of samples required when the population is too large to directly sample every member. This is embodied in the philippine agriculture and fishery mechanization act framework, intensified with the implementation. Data were collected using selfadministered assessment questionnaires of a five likert scale and analyzed using sem. The amount of sample in this study is determined by the slovin formula as follows. Abdul rahman mus2, jamaluddin bijang3, baharuddin latief4. International journal of scientific and research publications, volume 6. This formula was used to calculate the sample sizes in tables 2 and 3 and is shown below. I recently declined this draft article about slovin s formula, which is used in statistics. Paper open access analysis of satisfaction level with.
Qualitative research is designed to explore the human elements of a given topic, while specific qualitative methods examine how individuals see and experienc. Some background search might be warranted but given the nature of textbook containing the formula none of them are math books, i would necessarily expect slovin to be mathematician or to have published in a math journal, i. International journal of social science and economic research. Ex post facto or casual comparative research 15 subjects per. If the population to be sampled has obvious subgroups, slovin s formula could be applied to each individual group instead of the whole group. Slovin s formula calculates the number of samples required when the population is too large to directly sample every member.
However, there are a number of practical issues in selecting values for the parameters required in the formula. The paper also suggests the application of a software calculator that checks. Where n is the sample size, n is the population size, and e is the level of precision. Hence, it is not advisable to use slovins formula if any of the abovementioned assumptions do not hold. Probability sampling is a sampling technique that provides equal opportunity for each element member of the population to be selected as a sample member. If it is a notable formula and it can be backed up by reliable sources, perhaps an article should be written about it. Misalnya dari contoh di atas, maka peneliti akan mengambil masingmasing dari stratum sebanyak 75 orang atau 3004 sama dengan 75 orang. Likert scale sugiyono 2010, likert scale is used to measure attitudes, opinions and perceptions of a person or group of people about social phenomena. Characterization of layer poultry production in rwanda. Take for example a project a student have a total population of about 400 respondents and wishes to determine the sample size.
Rumus slovin ini biasa digunakan dalam penelitian survey dimana biasanya jumlah sampel besar sekali, sehingga diperlukan sebuah formula untuk mendapatkan sampel yang sedikit tetapi dapat mewakili keseluruhan populasi. Researchers then distributed questionnaires offline and online to respondents with criteria, namely muslim women. To select n units out of n, such that each number of combinations has an equal chance of being sampling techniques. If the population to be sampled has obvious subgroups, slovins formula could be applied to each individual group instead of the whole group. The influence of transformational leadership style. Iosr journal of business and management iosrjbm eissn. Sampling method is used to determining the questionnaire in this research. Considerable fractions of the worlds diseases are communicable, of which over 60% are infectious. The performance of high school english teachers in gorontalo province reached an average of 151. Jun 30, 2010 and also the derived formula in getting the total population n when n and e are given. The ultimate sample size was determined using slovins formula cochran, 1963. First of all you should be working with a finite population and if the population size is known, the yamane formula for determining the sample size is given by.
Tps 2012 final for printing dd philippine statistical. Sample size using slovin formula with 5% of galad precision. Slovins formula sampling techniques by stephanie ellen. Hence, cochrans and slovins formulas coincide when estimating p using a 95% con. Use slovin s formula to find out what sample of a population of 1,000 people you need to take for a survey on their soda preferences. Influence of servant leadership, organizational citizenship. Who is slovin and where and how did the slovins formula. We will illustrate with the above formula to determine the sample size from a given population. The instrument used was a structured questionnaire, a fivepoint likert.
Data mining systems to determine sales trends and quantity. Hello all, if anyone can help me with an formular that has had me somewhat stumped for the last few weeks now, i would be eternally grateful. For smaller populations, a minimum of 20 percent may be required. The slovin s formula is quite popularly use in my country for determining the sample size for a survey research, especially in undergraduate thesis in education and social sciences, may be because. Which was applied on the nation chicken population as follows. Roy had 12 intr avenous drug injections during the past two weeks see figure 33, jon had 9 injections and ben had 10 injections. The effect of work discipline, achievement motivation and. Do researchers in your country also used the socalled slovin. Simple random sampling and systematic sampling simple random sampling and systematic sampling provide the foundation for almost all of the more complex sampling designs based on probability sampling. From slovin formula, the number of respondents was 100. Rusli1,2 1department of community dentistry, school of dental sciences, 2department of community medicine, school of medical sciences, universiti sains malaysia, health campus, 16150 kubang kerian, kelantan, malaysia. Blood flow rate bfr was determined by adjusting the hd machine button that is set when and the dialysis process and the speed shown on the hd machine monitor, with a speed of mlminute. Base on calculation with slovin formula get 105 people as sample size.
I am trying to create the above slovin s formula which is used to calculate a sample size based on the population size, confidence level and margin of error ive looked all over the web and found many formulas as to how to do this but have been. The sampling size is determined by using the following slovins 1960 formula. November 20, analysis of sample size in consumer surveys, gfk polonia 18 sample size analysis of impact on quality measures sample size correlation bcs with ref. Sehingga dengan mencermati persamaanpersamaan matematis tersebut, dapat diketahui beberapa keterangan mengenai rumus slovin yaitu. The number of research samples was calculated by slovin formula and obtained as many as 235 respondents. They are also usually the easiest designs to implement. Cultural factors influencing project management in ict. Primary data sourced from questionnaires distributed directly to employees of the national resilience institution of the indonesian republic and secondary data sourced from literature study through various books, journals, and related articles.
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