[Quetelet, the average man and medical knowledge].

Area of Science:

• Social Sciences
• Statistics
• History of Science

Context:

• Analysis of Adolphe Quetelet's seminal works, "Sur l'homme et le développement de ses facultés" and "Du systeme social et des lois qui le régissent."
• Examination of Quetelet's 'average man' theory, linking biological and social normality to population-based characteristic frequency.
• Identification of explanatory strategies from physics and astronomy, alongside theological and religious discursive methods in Quetelet's work.

Purpose:

• To analyze Adolphe Quetelet's theory of the 'average man'.
• To investigate the integration of scientific (physics, astronomy) and non-scientific (theology, religion) explanatory strategies in Quetelet's social theories.
• To understand the foundational role of statistical stability (the mean) in the application of statistics to social sciences and medicine.

Summary:

• Quetelet's 'average man' theory posits that biological and social normality correlate with the frequency of traits within a population.
• His work integrates physical and astronomical explanatory models with theological and religious discourse.
• The statistical concept of the mean, contrasted with individual variation, underpinned the use of statistics in social sciences and medicine.

Impact:

• Highlights the interdisciplinary influences on early statistical applications in social sciences.
• Demonstrates the historical roots of using statistical averages to define normality in human populations.
• Provides insight into the foundational principles that enabled the statistical analysis of social and medical data.