Seasonally adjusted data – Frequently asked questions

By Susie Fortier and Guy Gellatly, Statistics Canada

This special edition article provides nontechnical answers to selected questions related to the use and interpretation of seasonally adjusted data. Organized as a set of Frequently Asked Questions (FAQ), it complements the more technical discussions of seasonal adjustment in Statistics Canada publications and reference manuals.

This reference document is divided into two sections. Section 1 is a review of concepts and definitions that are central to the theory and practice of seasonal adjustment. Section 2 is a discussion of selected issues that are related to the analysis and interpretation of seasonally adjusted data.