Sampling frame:
A sampling frame is a collection of data
from a sample, a technique used in statistics when a population or data sample
is too large to be studied.
A
sample frame is the source of material or device from which a sample is drawn.
Qualities of sampling frame:
1) All
units have a logical, numerical identifier.
2) All
units can be found-their contact information, map location or others
information.
3) The
frame is organized in a logical, systematic fashion.
4) The
frame has additional information.
5) Every
elements of the population of interest is present in the frame.
6) Every
elements of the population is present only once in the frame.
7) The
data is ‘Up-to-data’.
8) No
elements from outside the population of interest are present in the frame.
Problem of sampling frame:
1) Missing
elements: Some members of the population are not included in the frame.
2) Foreign
elements: The non-member of population are included in the farme.
3) Duplicate
entries: A member of the population is surveyed more than once.
4) Groups:
The frame groups instead of individuals.
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