Description of methods and sources for Albania - INSTAT

IPA 2009 Multi-beneficiary StatisticalCooperation ProgrammeSample Segment Identification on map and groundThe total segment sampling size set at 400 segments based on an assessment of thecapabilities of the Ministry to collect and process quality data and the requiredprecision of estimates.As a first step, this total sample size had been chosen; the first step in allocating thesample to strata was the calculation of standard deviations by strata for arepresentative number of crops and livestock.The second step was the allocation of the 400 sample segments between strata usingthe Newman optimum allocation procedure.The last step was the allocation of segments by strata between Prefectures (definingthe number of segments for each prefecture). The sample segments were thensummed across Prefectures to insure a minimum sample 20 - 30 at Prefecture level.Segment selectionIn a PSU worksheet required for each Prefecture which lists each area (hectare) thecalculated number of segments for each PSU, and the accumulated number ofsegments for each stratum. The samples of PSU-s were defined by using systematicselection with random start. The sampling interval was defined by dividing theaccumulated segment number for each stratum (total segments) by stratum number ofsample segments.Identification of segments in mapSegment location was identified by using 1:100000 maps and the procedure is thesame as with PSU-s.Digitizing and processing of segmentsDigitizing and processing of segments was done by using the same procedure as withPSU-s.Identification of segments in ground and list of farmersAfter identification, the selected segments in the map defined whether farmingactivities or dwelling units were located in them. A complete list of farmers wasprepared which was used as the secondary sample and then selected the 6 farmerswith randomly systematic activities.193/236