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Thinking of using the ONS LS?

Before you apply to use LS data, we suggest you think about your research question and how to base it on the data that is available in the LS: What are you studying? Who will your sample be? What period will your research cover?

To help you to do this, read about the ONS Longitudinal Study to find out more about the data it contains and consult the census forms that were used to collect LS data. Think about the following questions: 

  • Are the census questions you are interested in asked in the years you want to study?
  • Are they asked of the age group you want to study?
  • If the responses are in pre-coded categories, will these categories meet the needs of your study?
  • Why is the LS the most appropriate dataset to use to answer your research question?

Also, use the CeLSIUS data dictionary to check which variables you’d like to use, or CALLS-Hub's data dictionary, which crosses all UK LSs.

Perhaps consult other resources for further information and guidance, such as our guides to using ONS LS data, look up current and past LS research and search outputs from LS research.

Whenever you feel ready, you may begin applying to use the ONS LS. Contact celsius@ucl.ac.uk at any point for assistance with this.