Hal ini dikarenakan penelitian dengan menggunakan jumlah populasi secara keseluruhan akan memakan waktu yang lama dan biaya yang sangat besar. Kalau sampel nya kecil hasil yang didapat kurang efisien. She coauthored a statistics textbook published by houghtonmifflin. Konsep slovin dalam banyak buku yang mencantumkan rumus untuk menentukan ukuran sampel yang dibuat slovin, khususnya dalam bukubuku metodologi. If the sample is correctly chosen the results can be used to represent the target population. Tapi dari beberapa jurnal yang saya baca, rumus slovin ini digunakan untuk sampel yang besar. Jul 25, 2017 answer to when do you use yamane formula to determine sample size. Cochran 1977, mark 2005 and singh and chaudhury 1985. I recently declined this draft article about slovins formula, which is used in statistics. For smaller populations, a minimum of 20 percent may be required. The sample of this study is 183 students, by using slovin formula.
The three will be selected by simple random sampling. That is, no correlation exists between the samples. By stephanie ellen, ehow contributor when it is not possible to study an entire population such as the population of the united states, a smaller sample is taken using a random sampling technique. When it is not possible to study an entire population such as the population of the united states, a smaller sample is taken using a random sampling technique. Sample size calculation for a study, from a population has been shown in many books. 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. Gonzales sampling sampling process of selecting members or elements of a sample from a given population. Additionally, it is optimal only when the population proportion is suspected to be close to 0. With millions of qualified respondents, surveymonkey audience makes it easy to get survey responses from people. Rumus slovin dapat dilihat berdasarkan notasi sebagai berikut. Sample size calculator population for numerical data a infinite population using. Dalam metode ini, cara pemilihan sampel harus dilakukan secara acak random.
In probability sampling, each unit is drawn with known probability, yamane, p3 or has a nonzero chance of being selected in the sample. Dalam metode probability sampling, seluruh unsur misalnya. Non probability sampling using other than random procedures such as. 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.
Aug 30, 20 for the love of physics walter lewin may 16, 2011 duration. Figure out what you want your confidence level to be. The calculation formula of taro yamane is presented as follows. Slovins formula gives the researcher an idea of how large the sample size needs to be to make sure a affordable accuracy of results. However, this nonparametric formula lacks mathematical rigor ryan, 20. Population it is the group to which a researcher would like the results to be generalizable 4. This formula uses to determining the number of sample from this population.
Sampling is a research method where subgroups are selected from a larger group known as. Slovins formula calculates the number of samples required when the population is too large to directly sample every member. Yakni probability sampling dan nonprobability sampling. When to use slovins formula if a sample is usually taken from a populace, a formula must be used to take into accounts selfconfidence amounts and. This formula was used to calculate the sample sizes in tables 2 and 3 and is shown below. If it is a notable formula and it can be backed up by reliable sources, perhaps an article should be written about it. This formula is only used when the sample size is unknown. But the average of all the sample estimates is 27, which is the true average of the population. Slovins formula is used to determine the sample size. Who is slovin and where and how did the slovins formula for. Here is the slovin formula for measuring the sample in this research. Where n is the sample size, n is the population size, and e is the level of precision. 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. Sep 15, 2012 kebetulan tugas akhir saya ada kaitannya dengan rumus slovin tapi sampel saya tidak sampai 100.
It is further classified into the following subtypes. Use simple random sampling equations for data from each stratum. Slovins formula in excel calculating survey sample size. Mar 22, 2019 slovins formula gives the researcher an idea of how large the sample size needs to be to make sure a affordable accuracy of results. Sampling is a research method where subgroups are selected from a larger group known as a target population. How to determine the sample size in a large population. Spatial sampling spatial sampling is an area of survey sampling associated with sampling in two or more dimensions. Slovin publication of the formula is however dated 1960 not 1843, but it might have known to others earlier. Tps 2012 final for printing dd philippine statistical. Some samples give a very low figure while some others give a high estimate.
I am trying to create the above slovins formula which i understand 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 able to successfully implement into into excel have came close but its not been. Slovins formula is used in statistical analysis as a tool to determine the sample size of a population that must be taken for a specific study. If the sample size calculator says you need more respondents, we can help. N should always be given, that s what you should first settle before finding the sample. Cara hitung rumus slovin besar sampel uji statistik. 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. Teknik sampling dapat dikelompokkan menjadi dua, yaitu.
We can conclude that that the sample mean is an unbiased estimate of the population mean. Raj, p10 such samples are usually selected with the help of random numbers. Slovin s formula allows a researcher to sample the population with a desired degree of accuracy. Rumus slovin untuk menentukan sampel adalah sebagai berikut. Hence, cochrans and slovins formulas coincide when estimating p using a 95% con. Slovin s formula calculates the number of samples required when the population is too large to directly sample every member. Round your answer to a whole number because you cant sample a fraction of a person or thing. 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.
Sample it is the small group you observe and a population is the larger group about which your generalization is made 3. 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. When do you use yamane formula to determine sample size. For example, you might want a confidence level of 95 percent giving you an alpha level of 0. The producing value of n equals the sample size to be used. Spatial sampling is an area of survey sampling associated with sampling in two or more dimensions. Random sampling, the larger the sample, the more accurately it represents the population from which it was taken. Slovins formula is used to calculate the sample size n given the population size n and a margin of error e.
Slovins formula allows a researcher to sample the population with a desired degree of accuracy. If the population to be sampled has obvious subgroups, slovins formula could be applied to each individual group instead of the whole group. Hence, it is not advisable to use slovins formula if any of the abovementioned assumptions do not hold. International journal of education and research vol. Independent sampling independent samples are those samples selected from the same population, or different populations, which have no effect on one another.
In this handout, the formulae for powerbased sample size calculations will not be derived, just presented. For the love of physics walter lewin may 16, 2011 duration. Stephanie ellen teaches mathematics and statistics at the university and college level. So here we are, provide you with the simple and userfriendly sample size calculator with sampling method that widely used, the slovins or yamanes method. Cara menentukan jumlah sampel dengan rumus slovin teknik. Take for example a project a student have a total population of about 400 respondents and wishes to determine the sample size. Tell us about your population, and well find the right people to take your surveys. If the population to be sampled has obvious subgroups, slovin s formula could be applied to each individual group instead of the whole group. Slovins formula margin of error sampling statistics. Who is slovin and where and how did the slovins formula. Nevertheless, the general features of the above hold.
Slovins formula minimum acceptable sizes descriptive research 10 percent of the population. Slovin yamane sample size calculator free download. Teknik sampling apabila semua anggota populasi dipilih menjadi anggota sampel, maka proses ini disebut sensus sampel jenuh. I recently declined this draft article about slovin s formula, which is used in statistics.
We will illustrate with the above formula to determine the sample size from a given population. Requires time effort money careful planning slovins formula there are scientific ways of determining a representative acceptable sample size from any. Slovin s formula widely used to calculate minimum sample size from finite population, but the original reference not available, i suppose you can use other reference as cited by, i hope the. It is also usually necessary to make an allowance for dropouts.
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. Probability sampling a term due to deming, deming is a sampling porcess that utilizes some form of random selection. Powerbased sample size calculations, on the other hand, relate to hypothesis testing. Secara umum, terdapat dua pendekatan dalam metode pemilihan sampel. Cara menentukan jumlah sampel dengan rumus slovin dalam melakukan penelitian pada suatu populasi, kita sering menggunakan sampel untuk mewakili populasi tersebut. Slovin s formula is used in statistical analysis as a tool to determine the sample size of a population that must be taken for a specific study. Slovins formula sampling techniques stephanie ellen. Rumus slovin pengertian, cara menghitung, dan contoh soal. 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.
Setelah kita mengetahui pengertian dari rumus slovin, berikutnya dalam menghitung pada jumlah populasi suatu objek tertentu, kita pasti memerlukan sebuah formula atau rumus untuk menghitung sampel dari jumlah objek yang akan kita jadikan sebuah penelitian, sebagai berikut. Chapter 2 determination of appropriate sample size shodhganga. Slovins formula provides the sample size n using the known population size n and the acceptable error value e. Sample size calculator for categorical data a infinite population using below formula. Slovins formula is applicable only when estimating a population proportion and when the con. Sampling sample size determination sampling statistics. 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.
Slovinss formula is used to calculate an appropriate sample size from a population. With hundreds of thousands of qualified respondents, surveymonkey target audience makes it easy to get survey responses from people around the world instantly, from almost anyone. Slovin sample size calculator for limited prior information using below formula. The sample of this research consisted of 55 teachers taken using simple random sampling technique based on slovins formula from 123 high. Slovins formula sampling techniques by stephanie ellen. Some textbooks also derive slovins formula, though perhaps in a slightly. Jul 21, 20 i am trying to create the above slovin s formula which i understand 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 able to successfully implement into into excel have came close but its not been. To estimate the design effect, an estimate of either. As the sample size decreases, the degree of representativeness becomes less. Slovins formula gives you a ballpark figure to work with. If the population to be sampled has obvious subgroups, slovins formula could be. Slovins formula widely used to calculate minimum sample size from finite population, but the original reference not available, i suppose you can use other reference as cited by, i hope the. The sample of this research is calculated by using taro yamane yamane, 1973 formula with 95% confidence level.
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