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Some coverage error models for census data.

"Alternative models are presented for representing coverage error in surveys and censuses of human populations. The models are related to the capture-recapture models used in wildlife applications and to the dual-system models employed in the vital events literature. Estimation methodologies are discussed for one of the coverage error models." After a discussion of the theory underlying the methodology, "distinctions are made between two kinds of error: (a) sampling error and (b) error associated with the model. An example involving data from the 1980 U.S. census is presented. The problem of adjusting census and survey data for coverage error is also discussed."

Americas↗

[Population of Southeast Asia in the mid-nineteenth century: population counts appearing in the Journal of the Indian Archipelago and Eastern Asia].

"This paper aims to compile and evaluate the information on the population of Southeast Asia in the Mid-nineteenth century appearing in the Journal of the Indian Archipelago and Eastern Asia, which was published from 1847 to 1860 in Singapore. The journal contains considerable numbers of population figures for the pre-census period,...[concerning] Sumatra, the Malay Peninsula, the Straits Settlements, Java, Bali, Lombok, Sulawesi, Borneo, and other parts of insular Southeast Asia. The general tendency of the population counts of insular Southeast Asia in this period by the Europeans is toward underestimation. This is especially true for the inland areas of the larger islands, which were remote from the European sphere of influence. Populations of the small islands located on commercial routes are reported relatively accurately or even overestimated. Populations of the European settlements are sometimes overestimated and their growth rates tend to be exaggerated." (SUMMARY IN ENG)

Asia↗

The 1991 census of population in England and Wales.

"This paper describes the 1991 census in England and Wales: how it was planned and implemented and how its results are being assessed. The description brings out the tradeoffs that are necessary in undertaking a census, and some respects in which plans for a census in 2001 will need to take account of experience of that in 1991." Consideration is given to such issues as confidentiality, the ethnic group question, underenumeration, census output, and future plans for census improvement. A discussion of the paper by various contributors and an author's response is included (pp. 230-40).

Censuses↗

[An approach to determine the scope of induced abortion in the community].

Information on the extent of abortion is generally obtained through direct enquiries of women. However, there is always the possibility of underreporting abortion due to several factors. In this article, the results of a study on underreporting of abortion in Cubuk Health Center are presented. Unlike the findings of similar studies, the overall underreporting of all abortion was only 4% and no relationship was found between the underreporting rate and sociodemographic characteristics of the women. The results have been discussed in the context of the special features of the health services provided in the study area.

Abortion Applicants↗

Virgin and martyr.

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Abortion, Illegal↗

Alternative dual system network estimators.

"When there are two or more data systems and none of them enumerates the population at an acceptable completeness level, concern about the bias due to underenumeration suggests an estimator which makes joint use of data compiled by the combined imperfect data systems. Conventional dual system estimators are based on the existence of two separate data collection systems. Dual system network estimators assume a main survey and a follow-up quality check survey. The main survey adopts a multiplicity counting rule that combines two mutually exclusive partial counting rules." Three dual system network estimators are presented. "One was previously proposed by Sirken (1979) and is the natural analogue of the conventional dual system estimator. The two other estimators are proposed as potential improvements, although neither of them is the natural analogue of the conventional dual system estimator. The design effects of the three estimators are compared analytically and empirically with one another, and with those of the single system conventional and network estimators." (summary in FRE)

Data Collection↗

[The 1882 Census].

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Africa↗

The effects of age mis-statement on estimates of net migration.

"This paper presents an explicit derivation of effects of age misstatement on census survival rates (CSR) and life table survival rate (LTSR) estimates of net migration and net migration rates. In the presence of age misstatement, CSR estimates of migration and migration rates are generally biased, although the direction of bias is not always clear. The paper also shows how the analysis of errors due to age misstatement is related to past analyses of errors due to underenumeration."

Age Factors↗

Effects of census adjustment.

This paper examines "the potential impact of various adjustment scenarios on the apportionment of Congressional seats following the 1990 [U.S.] Decennial Census...." The author concludes that none of the alternative adjustment procedures under consideration would make a significant difference in the overall composition of Congress.

Americas↗