Wednesday, October 19, 2016



A researcher here has 2 questions:

1. Pertaining to the PUMF for Cycle 3 of the National Longitudinal Survey of Children and Youth: the PUMF collection contains the Primary File and the 10-15 Year Olds file. It appears that the Primary File contains data collected from the Book 1 – Parent Survey questionnaire and the 10-15 years old file contains data collected from Book 2, specifically the questionnaires for the children. In Book 2 there is also a series of teacher questionnaires, but it is unclear what, if any, of that data appears in the PUMF. There are variables in the PUMF Primary File that relate to performance on academic tests for math, reading etc., which were presumably conducted by teachers, but it is very difficult to match any of that clearly to questions listed in the surveys in Book 2. Is there a clear way to determine which variables in the Primary File were collected from parents (PMKs) vs teachers? Is there additional data from the teacher surveys available through the RDCs?

2. Pertaining to the Canadian Health Survey on Children and Youth (2016 pilot) described on the Statistics Canada website. Do you know whether there are plans to release any of the pilot data? And, do you know whether this survey will be going beyond the pilot phase and if yes, what are the timelines for conducting the survey and/or releasing data, either as PUMF or via the RDC?


“We are planning to release the CHSCY pilot data to the RDC if the data quality is acceptable. We will make that determination by September 2017 at the latest. There are no plans to produce a PUMF with the pilot test data.

We have funding for three full cycles of the CHSCY. Data collection is tentatively planned for:

Cycle 1- October 2018-May 2019 (Data release ~February 2020)
Cycle 2- October 2021-May 2022 (Data release ~February 2023)
Cycle 3- October 2024-May 2025 (Data release ~February 2026)

There has been such tremendous interest in this survey that I am confident there will be funding announcements for additional cycles in the next few years. We are planning to put all CHSCY data in the RDC and RTRA system. There is no decision on whether a PUMF will be created for the full cycles. We will study the data from the first full cycle to evaluate the uniqueness of the records, required suppression and overall suitability for a PUMF before making a recommendation to the CHSCY Steering Committee. We will likely make this recommendation in spring/summer 2020 once we are more familiar with the data.