representativeness
representativeness — noun
1. the degree to which a small group shows the same traits and patterns as the whol
the degree to which a small group shows the same traits and patterns as the whole group it comes from, allowing reliable conclusions about the larger population
Wei assessed the focus group's representativeness by matching its makeup against the latest census.
collocation: assess the representativeness of [sample]
Ananya doubted the representativeness of a survey that only reached people with internet access.
Recruiting every subject from a single hospital in Osaka cost Dr. Niran's study its representativeness.
Diego improved the representativeness of his poll by calling both landlines and mobile phones.
Amara noted that excluding non-English speakers from the jury list destroyed any claim to representativeness.
- typicality
less technical; refers to how ordinary or characteristic something is rather than statistical accuracy
- generalizability
narrower; asks whether findings from a sample can be applied to other populations or settings
- unrepresentativeness
direct opposite; rarely used outside academic writing
- bias
in statistics, a systematic error that makes a sample unrepresentative
文法句型
the representativeness of + [sample / group / data]
用法筆記
Uncountable noun used in formal and academic contexts. Almost always paired with 'of': 'the representativeness of the sample'. Contrast with 'representation', which refers to the act of speaking or acting on behalf of someone, or the presence of a group in an institution.