Sample size for qualitative research https www emerald com insight content doi 10 1108 QMR 06 2016 0053 full html loginreload Data saturation is the point at which no new information or themes are observed in the data from the completion of additional interviews or cases The sampling issue in quantitative research https files eric ed gov fulltext EJ919871 pdf Sample size calculator https www surveysystem com sscalc htm Sample size guide https www researchgate net profile Ankit Gaur 9 post What is the Sample Size above which the data is assumed to have normality attachment 5b2b370bb53d2f892896fbcf AS 3A639830115495943 401529558795646 download samplesizecalculation pdf When doing qualitative and quantitative data collection it is important to properly determine your sample size Unfortunately there is no golden rule for this For the qualitative investigation it is a good idea to start with 20 30 units and to grow your sample size if necessary until you reach data saturation For the quantitative data collection you can target a sample size of around 100 units for each major sub group i e non positive deviants in the population and between 20 to 50 units for each minor sub group i e positive deviants Sampling Sampling tools There are tools that suggest the ideal sample size based on the confidence level confidence interval and the population size However such tools should be used with caution as they enable inferences on entire populations not subgroups within the population That said for comparing the prevalence of certain practices between two groups positive and non positive deviants there are also case specific sample size tables that can be used as shown in this guide It is also important to ensure diversity in the selection of the sample units make sure your sample covers the different attributes of the units that are being analyzed 81 82

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