Age-standardised rate of student suspensions from New Zealand schools

By ethnic group and gender, 2022, rate per 1000 students

The following information applies to all values in the table. Year: 2022, Measure: Age-standardised rate of suspensions in schools
Ethnic group	Gender	Rate per 1000 students
Asian	Female	0.2
Asian	Male	0.8
European/Pākehā	Female	1.7
European/Pākehā	Male	3.9
Māori	Female	5.5
Māori	Male	7.5
Other	Female	1
Other	Male	2.4
Pacific Peoples	Female	2.5
Pacific Peoples	Male	4.4

Definitions

A suspension is a formal removal of a student from a school until a school Board of Trustees decides the outcome at a suspension meeting. Following a suspension, the Board of Trustees decides how to address the student's misbehaviour.

Data calculation/treatment

The age-standardised suspension rate is one where all subgroups, for all years, being compared are artificially given the same age distribution. In this indicator, the age distributions of students in each subgroup and year have been standardised to (or weighted by) the set of 2019 age-specific suspension rates for all New Zealand.
As suspensions are highest for ages 13 to 15, standardising for age will remove any differences due to one group having a younger or older population than other groups, or if the overall age distribution has changed from year to year. As such, the standardised rate is an artificial measure, but it does provide an estimate of how groups, or overall rates by year, might more fairly compare if they had the same age distribution.
For this indicator, ethnic group is prioritised in the order of Māori, Pacific Peoples, Asian, other groups except European/Pākehā, and European/Pākehā.