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Systematic sampling

Systematic sampling


A collection strategy based on the principles of statistic sampling, by collecting or counting all finds within predefined transects, grids or collection units set out in a regular manner to provide comparable quantities of material, as well as qualitative data to enhance the possibilities of dating and interpretation.

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Systematic random means ordering your dataset (the population) on one principle, taking a random starting point, and selecting items on a regular interval. This is useful if you want to want to completely cover a large range of items that you expect to vary along its whole range. I.e., in an archaeological field survey, the population is the complete archaeological surface record, which we expect to vary along the whole region, and we want to include this whole region in our sample. A systematic sample from one unit would be taken by covering between 20-40 % of the unit in walking lines, with regular intervals of 5-10 mt. A weakness of systematic random sampling is that you run the risk of entirely missing patterns that are somehow arranged in similar regular intervals.

Research topics: Software & Technology