Unique identity for an individual respondent (only known if the respondent provided their email address and that email address did not change over time).

Unique identifier for each survey response.

A four-level factor indicating the respondent's previous NZGBS experience.

Gender of adult respondents (male, female or other, where no response, preferred to say or mixed group).

Six-level factor: under 20 years old, 20-39 years old, 40-59 years old, older than 59 years old or a mixed age group or unknown.

Five-level factor for ethnicity of participants: European, Māori, Asian, Other or Unknown

Unique identifier for each resource in each campaign year.

Campaign year

Campaign year re-scaled and re-centered around zero

Resource format

Aware of latest results resources (yes)

Interested or not in the respective resource (1 = yes, 0 = no)