title: Measuring pregnancy planning: An assessment of the London Measure of Unplanned Pregnancy among urban, south Indian women.
abstract: We evaluated the psychometric properties of the London Measure of Unplanned Pregnancy among Indian women using classical methods and Item Response Modeling. The scale exhibited good internal consistency and internal structure, with overall scores correlating well with each item's response categories. Items performed similarly for pregnant and non-pregnant women, and scores decreased with increasing parity, providing evidence for validity. Analyses also detected limitations, including infrequent selection of middle response categories and some evidence of differential item functioning by parity. We conclude that the LMUP represents an improvement over existing measures but recommend steps for enhancing scale performance for this cultural context.
authors.affiliation: Department of Epidemiology, University of California, Berkeley, School of Public Health, 101 Haviland Hall, Berkeley, CA 94720-7358, USA.; Women's Global Health Imperative (WGHI), RTI International, 114 Sansome Street, Suite 500, San Francisco, CA 94104, USA.
authors.forename: Corinne H
authors.initials: CH
authors.lastname: Rocca
authors.forename: Suneeta
authors.initials: S
authors.lastname: Krishnan
authors.forename: Geraldine
authors.initials: G
authors.lastname: Barrett
authors.forename: Mark
authors.initials: M
authors.lastname: Wilson