information is present
* the frame is organized in a logical, systematic fashion
* the frame has additional information about the units that allow the use of more advanced sampling frames
* every element of the population of interest is present in the frame
* every element of the population is present only once in the frame
* no elements from outside the population of interest are present in the frame
* the data is 'up-to-date'

Types

The most straightforward type of frame is a list of elements of

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