Patil & Rao bias correction

Knowledge graph centered on Patil & Rao bias correction with 14 nodes and 28 connections. Top connected: Rushes, fitness consequences, dispersal, kin selection, Long-distance dispersal to the mining frontier in .

Method synopsis

Statistical method to correct for inherent male bias when calculating sibling sex ratios and family sizes from male-only cohorts. Removes bias introduced by the inclusion of cohort members in family composition calculations.

Synthesized from method descriptions across 1 paper using this protocol.

Procedure from a recent peer-reviewed implementation

Steps below were extracted from the most recent peer-reviewed implementation of this protocol in the corpus — Long-distance dispersal to the mining frontier in late 19th century Colorado (2009), Behaviour. Implementations in other papers (listed below) may differ.

1. Apply bias-correction methods
   Used Patil & Rao (1978) methods to calculate unbiased sibling sex ratios and family sizes. For sibling sex ratio, calculated (B - k)/(B + S - k) where B=brothers, S=sisters, k=cohort individuals. For family size, calculated k/Σ(1/ti) where ti=Bi + Si for each family.
   Quantities: Corrections applied to all family composition calculationsDuration: Not specifiedConditions: Statistical correction for male bias in cohort selection
   Equipment: statistical calculation methods

Typical Equipment

• statistical calculation methods

Output Measurements

• corrected sibling sex ratio
• corrected family size

Papers Using This Protocol (1)

Species Studied With This Protocol