![]() Algorithm was improved using scientific recommendations from a professor of biostatics and an epidemiologist along with testing applicability of it looking up for special examples of sample size calculation, reviewing 5 peer reviewed medical journals.įor primary evaluation purpose, 23 academic staff of Ardabil University of medical sciences and Public Health School of Tehran University of medical sciences were selected and presented the different capabilities of software and then, designed questionnaire for evaluation of it was filled by them.ĭata collected were analyzed with SPSS software. RND function and For-Next and Do-Until loops were used extracting random numbers.Īlgorithm used for designing sample size calculation is taken mainly from WHO recommendations in WHO different publications mainly Lemshaws Sample size determination in health studies. Active Xs, DLLs and MSchart, PPT, Mplayer components were used every where needed. ![]() SQL language was used to extract data from access database taking advantage of ADO technology. Standard tables such as Z table were used by self defined functions and modules. Visual basic 6 was the language for programming. Is to evaluate the primary version of this software compared to some other available Nominated by the designer as Yasin sampling software. Based on some WHO publications a software package hasīeen designed for those health researchers who have not a good knowledge ofīiostatistics as well as biostatisticians and epidemiologist. Now but nearly all of them need a user with a good knowledge about biostatisticsĪnd statistical tests. Several software packages have been designed and presented up to So a need has always been arisen to design sample size software packages facilitating Researchers while studying results presented or published by other researchers,Īs they are faced with summarized data and because of the complexity of statisticalįormulas, mostly, dont know if they can rely on what they read or not?Īcquiring a fairly large count of randomized numbers, especially when the numbersĪre to be in a given range is another time consuming if not difficult activity. The power of tests is one of the important problems, when the researcher doesntįind significant statistical differences. Many interested health researchers who may even not beĪcademic staff, have problems in determination of sample size. The answer will depend on the objectives, nature and scope of the study and The most important question asked by a health researcher when designingĪnd planning of a study or survey is how large a sample size do we need? and Sample size determination is defined as the mathematical process ofĭeciding, before a study begins, how many subjects should be studied (Last,ġ995). ![]() Sampling and determining sample size is one of the major problems in health Information Technology Journal, 6: 135-141. ![]() Pilot Evaluation of the First Iranian Sampling Software for Health Research (Yasin Sampling Software). For primary evaluation purpose, 23 academic staff of Ardabil University of Medical Sciences and Public Health School of Tehran University of Medical Sciences were selected and presented the different capabilities of software and then, designed questionnaire for evaluation of it was filled by them. Algorithm used for designing sample size calculation is taken mainly from WHO recommendations in WHO different publications. The aim of this research is to evaluate the primary version of a new software compared to some other available sample size software packages. Several software packages for sample size determination have been designed and presented up to now but nearly all of them need a user with a good knowledge about biostatistics and statistical tests.
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