A comparison group or ‘norm’ group or is a reference group for comparing psychometric test performance. The comparison group consists of large representative samples of individuals from specific groups. Some comparison groups are quite general, such as adult Australians or university graduates. Others relate to specific groups, such as sector (e.g. Public Service), industry (e.g. engineers, science and technology), role level, role type (e.g. manager and professional).
The comparison group should be specific to the role.