Multilingual Demographic Dictionary, second unified edition, English volume

Underestimation (UNDERESTIMATION)

Translation
Section	English 230	Arabic 230	Czech 230	German 230	Spanish 230	French 230	Italian 230	Japanese 230	Portuguese 230	Russian 230	Chinese 230
230-1	accuracy	دقة	přesnost	Genauigkeit	precisión	précision	La precisione —accuratezza	正確性	precisão	Учета точность	准确程度
230-2	completeness	تمام	úplnost	Vollständigkeit	integridad	complétude	complete —totali	完全性	completabilidade —cobertura	Полнота собираемых сведений	完整程度
230-3	omission —undercount	إغفال—إهمال	vynechání	Untererfassung —Lücke	omisiones	omission —lacune	omissioni —lacune	脱落 —調査漏れ	omissões —sub-enumeração	Пропуски	遗漏 —漏报
230-4	underestimation	نقص التقدير	podhodnocení	Unterschätzung	subestimaciones	sous-estimation	sottostime —duplicazioni	過少推計	subestimações	Двойные записи	偏低
230-5	multiple counting	عد المتكرر	vícenásobné započítání	Mehrfachzählung —Doppelzählung	recuento múltiple —empadronamiento múltiple	comptage multiple	conteggi ripetuti	重複調査	múltiplas contagens	Неправильных сведений, сообщение	重报
230-6	overestimation	افواط التقدير	nadhodnocení	Überschätzung	sobreestimación	surestimation	sovrastima	過大推計	sobre-enumeração	Классификация неправильная	估计偏高
230-7	misreporting	خطأ التبليغ	chybná výpověď	Angabefehler	errores de declaración	erreur de déclaration	dichiarazioni errate	申告ミス	subregistro	Регистрация повторная	误报
230-8	classification error	خطأ التصنيف—خطأ التبويب	chyba třídění	Klassierungsfehler —Fehlzuordnung	errores de clasificación	erreur de classement	errori di classificazione	分類ミス	erros de classificação	Вопросы, оставленные без ответа	分类错误
230-9	post-enumeration test	مسوح ضابطة لاحقة	kontrolní průzkum	Kontrollerhebung	encuestas de cobertura	enquête de contrôle	sondaggi di controllo	事後調査検証	testes de pós-enumeração	Послепереписная проверка	事后质量抽查
230-10	quality check	ضوابط الجودة	průzkum kvality	Qualitätsstichprobe	encuestas de calidad	enquête de qualité	sondaggi di qualità	人口学的内部検証	checagem de qualidade	Проверка качества	质量检查
230-11	non-response —not stated —unknown	غير معروف—غير واضح—غير محدد	neudáno	unbekannt —ohne Angabe —nicht näher bezeichnet —unrichtig bezeichnet	desconocido —no declarado —no especificado —mal definido —mal especificado	indéterminé —non-déclaré —spécifié. non-... —mal défini —mal désigné	non indicato —mal definito —non specificato —ignoto	無回答 —不詳 —不明	pesquisa de avaliação —sem resposta —em branco —não sabe	Непредоставленный ответ	无答案 —未报 —不详

The accuracy ¹ of population statistics will depend among other factors on the completeness ² of the count of individuals, groups or events on which they are based. Omissions ³ and undercount ³ tend to generate underestimation ⁴ while multiple counting ⁵ leads to over-estimation ⁶. Additional sources of error include misreporting ⁷ of a characteristic such as age and classification errors ⁸. Such inaccuracies are sometimes detected by post-enumeration tests ⁹ or quality checks ¹⁰. Occasionally certain questions are not answered or insufficiently answered and this may lead to considerable inaccuracy, the incidence of which is indicated by the frequency of the class designated as non-response ¹¹, not stated ¹¹, unknown ¹¹, undeclared ¹¹, not specified ¹¹, poorly defined ¹¹ or misspecified ¹¹ etc...

1. Accuracy, n. - accurate, adj.
2. Completeness, n. - complete, adj. The terms "complete" and "completeness" are used here to express the absence of omissions. The same terms may also be used to refer to coverage, as in 202-4.
3. The omission of some events from vital registration is called underregistration, and from a census or survey, underenumeration.
5. The expression double counts is often used in this sense.