Method evidence record

Group-Based Trajectory Model

Group-based trajectory modeling (GBTM) is a finite-mixture method that identifies clusters of individuals who follow similar developmental paths of a behavior — most famously offending — over age or time. Introduced to criminology by Daniel Nagin and Kenneth Land in 1993, it replaces the assumption of a single average trajectory with a small number of distinct latent groups, each described by its own polynomial curve and its share of the population.

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Group-Based Trajectory Modeling of Developmental Pathways

Taxonomic method record · regression-model / criminology

Nagin, D. S., & Land, K. C. (1993). Age, criminal careers, and population heterogeneity: Specification and estimation of a nonparametric, mixed Poisson model. Criminology, 31(3), 327–362. · DOI 10.1111/j.1745-9125.1993.tb01133.x
Nagin, D. S. (2005). Group-Based Modeling of Development. Harvard University Press. · ISBN 9780674016866

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Same method familyAge-Crime Curve Modelingmachine-suggested · Relational suggestion, not evidence.Used in the same domainCriminal Career Paradigmmachine-suggested · Relational suggestion, not evidence.See alsoGMMmachine-suggested · Relational suggestion, not evidence.See alsoLatent Class Analysismachine-suggested · Relational suggestion, not evidence.