Glossary

Purpose
The purpose of this glossary is to define terms commonly used in our research. It is a reference to familiarise you with housing-specific terms in our publications and on our website.

Scope
This glossary is limited to terms and acronyms most used by Australian academics and governments.

Format
All entries are listed in alphabetical order, including acronyms (which are cross-referenced with their corresponding definition.) Click on the appropriate letter to see listing.

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Q

quintile

A proportion of a set of data that has been ranked and divided into five groups, each of which contains an equal number of data items. For example, Housing Affordability Stress is assessed for households in the bottom two quintiles (i.e. the bottom 40%) of the income distribution.

Q1 households are those earning in the bottom quintile (0–20%) of Australia's income distribution.

Q2 households are those earning in the second quintile (21–40%) of Australia's income distribution.