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Available Data
Growing Up in New Zealand data are available from all data collection waves. Each wave reflects a different stage of the cohort’s development, from pregnancy and early childhood through to adolescence.
The topics and respondents vary across waves. The data available to you will depend on which data set you use – either the full data set held by the University of Auckland, or the subset of data that will be held in the StatsNZ IDI from 1 June 2026. Data users should review the available data carefully before applying for access, to ensure the data are suitable for their research questions. In the table below you will find details of the full Growing Up in New Zealand data set.
We have collected information from the cohort families – mothers, fathers and children at the numerous milestones.
In the table below you will find details of the following:
- Our data collection waves (DCW)
- The methodology used at each DCW
- The questionnaires used at each DCW
- The Data Dictionaries for each DCW
- Data Release User Guides.
You can also find all Data Dictionaries in one searchable file here.
You might also like to view the research projects currently underway or completed using Growing Up in New Zealand data and the completed study reports here. You can find out more about accessing Growing Up in New Zealand data here.
- 15-year online questionnaire with mother and child
- 15-Year Checkpoint
- 13-year online questionnaire with mother and child
- Extreme Weather Event (EWE)
- 11/12 year online questionnaire with child
- 8 year face-to-face interview with the child
- 8 year face-to-face interview with the mother
- 8 year direct observations of the child
- 8 year developmental and anthropometric assessments of the child
- 72-month online questionnaire
- 31-month phone call
- 45-month phone call
- 54-month face-to-face interview with child’s mother
- 54-month direct observations of the child
- 54-month developmental and anthropometric assessments of the child
- 2-year face-to-face interview with child’s mother
- 45-month phone call
- 2-year direct observations of child
- 2-year developmental and anthropometric assessments of the child
- 54-month developmental and anthropometric assessments of the child
- Phone call to collect age-appropriate developmental information
- Phone call to collect age-appropriate developmental information
- Derived after linkage to perinatal health records
- Face-to-face interview with mother.
- Face-to-face interview with partner
- Phone call to collect age-appropriate developmental information
- Face-to-face interview with mother
- Face-to-face interview with partner