Premium
Creation of a community violence exposure scale: Accounting for what, who, where, and how often
Author(s) -
Suglia Shakira Franco,
Ryan Louise,
Wright Rosalind J.
Publication year - 2008
Publication title -
journal of traumatic stress
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.259
H-Index - 134
eISSN - 1573-6598
pISSN - 0894-9867
DOI - 10.1002/jts.20362
Subject(s) - rasch model , polytomous rasch model , scale (ratio) , psychology , construct (python library) , event (particle physics) , poison control , psychometrics , item response theory , clinical psychology , social psychology , developmental psychology , computer science , medicine , environmental health , geography , physics , quantum mechanics , programming language , cartography
Previous research has used the Rasch model, a method for obtaining a continuous scale from dichotomous survey items measuring a single latent construct, to create a scale of community violence exposure. The authors build upon previous work and describe the application of a Rasch model using the continuation ratio model to create an exposure to community violence (ETV) scale including event circumstance information previously shown to modify the impact of experienced events. They compare the Rasch ETV scale to a simpler sum ETV score, and estimate the effect of ETV on child posttraumatic stress symptoms. Incorporating detailed event circumstance information that is grounded in traumatic stress theory may reduce measurement error in the assessment of children's community violence exposure.