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Support #1865

Changes to USOC wave data downloaded from UK Data Service compared to previous downloads of the waves

Added by William Shufflebottom about 1 year ago. Updated 4 months ago.

Status:
Resolved
Priority:
High
Category:
Weights
Start date:
02/23/2023
% Done:

100%


Description

Hi,

QUESTIONS

Q1: indscub_xw weight from wave 6 of USOC is present in our historical download of the wave 6 data but appears to be missing in the version of wave 6 we downloaded from UKData Service a few months ago and is also not listed as being in wave 6 on the USOC variable search page - can we confirm why only the indscui_xw weight is in the latest Wave 6 version, confirm it was in the original release, and if/when (and if so why) it was removed?

Q2: Our estimates run on the latest download of wave 1 to 12 of USOC are producing different numbers from the estimates we ran at the time of the previous wave's releases. Has there been a change to the data or weights (beyond wave 6 having a different weight) or how the weights work that could explain the difference we are seeing for all waves (bar wave 1 and wave 12) in a recent download of the data from all the waves. We are using the same weight (bar wave 6) and the same variable (sclfsat_7 in this case - but we use a range of USOC variables in our analysis).

BACKGROUND

We are producing estimates for the OECD and just discovered some differences for the estimates and CIs for the sclfsat7 variable when we re-ran historical estimates for all USOC waves 1 to 12. We run breakdowns for this variable (and others) by various domains when we update our publications and a new USOC wave has been released so we have the estimates from previous runs made at the time of USOC wave data release. We only ran the sclfsat7 variable again recently so there may be other changes.

We have a document for the weights to use for each variable which states that the indscub_xw weight is the correct weight to use for the sclfsat_7 variable in wave 6 but we noticed it was "missing" in the wave 6 data we downloaded around November from UK Data service (instead indscui_xw is present). As we are getting differences in our estimates and CIs for all waves (bar wave 1 and 12), this has prompted us to check with you if there have been changes made to the versions of the USOC main study wave data currently on the UK Data Service compared to what would have been available at the time each wave's data was released which could explain the differences we are seeing.

Your help is greatly appreciated as this has the potential to impact a lot of our publications and the current ad hoc we are working on

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