The APS contains 12 months of survey data.
It combines data from 4 successive quarters of the Labour Force Survey with rolling-year data from the local labour force surveys for England, Wales and Scotland.
The sample size is approximately 320,000 respondents.
Interviews are carried out either face to face or by telephone.
Weighting is used to adjust the results of a survey to make them representative of the population and improve their accuracy.
For example, a survey which contains 25% females and 75% males will not accurately reflect the views of the general population, which we know is around 50% male and 50% female.
Statisticians rebalance or ‘weight’ the survey results to more accurately represent the general population. This helps to make them more reliable.
Survey weights are usually applied to make sure the survey sample has broadly the same gender, age, ethnic and geographic make up as the general population.
The APS is weighted to reflect the size and composition of the general population, by using the most up-to-date official population data.
Suppression rules and disclosure control
The Department for Business, Energy & Industrial Strategy has suppressed:
- estimates and confidence intervals that have a group sample size smaller than 10
- estimates for where the number of people employed is less than 500
Percentages have been rounded to 1 decimal point. Totals may not add up to 100% because of this.
Further technical information
Before January 2009, data was collected on a standard industry classification (SIC) 92/03 basis.
It has since been reclassified to SIC 2007, based on the previous industrial code.
This approach may lead to a lack of continuity when comparing data for time series before and after January 2009.