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Biological Well-Being and Inequality in Canary Islands: Lanzarote (Cohorts 1886-1982).

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Sibship Size, Height and Cohort Selection: A Methodological Approach.

Ramon Ramon-Muñoz1, Josep-Maria Ramon-Muñoz2, Begoña Candela-Martínez2

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Methodological choices in historical research significantly impact findings on the relationship between sibship size and biological living standards, as demonstrated by late 19th-century Catalan data.

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Area of Science:

  • Historical demography
  • Anthropometry
  • Socioeconomic history

Background:

  • The number of siblings (sibship size) is a key indicator of family structure and socioeconomic conditions.
  • Height serves as a proxy for biological living standards, reflecting nutrition and health.
  • Assessing the sibship size-height relationship ideally requires detailed family reconstitution, which is often not feasible.

Purpose of the Study:

  • To investigate the influence of methodological decisions on the relationship between sibship size and biological living standards.
  • To analyze how matching population census and military records affects this relationship.
  • To evaluate the extent of methodological impact using data from late 19th-century Catalonia.

Main Methods:

  • Utilizing population census data to derive family and household structures.
  • Linking census data with height data from military records for young males.
  • Examining the impact of different data matching methodologies on the sibship size-height relationship.

Main Results:

  • Methodological choices in matching historical datasets can influence the observed relationship between sibship size and height.
  • The availability of data and the number of observations are critical factors in these methodological decisions.
  • Contextual factors are important, but research methodology also plays a significant role.

Conclusions:

  • The methodology employed in linking historical demographic and anthropometric data is crucial for accurately assessing the relationship between sibship size and biological living standards.
  • Researchers must carefully consider the implications of their methodological choices.
  • Findings on historical living standards are sensitive to the research design and data linkage techniques.