Results 161 to 170 of about 67,719 (312)

Approximating multidimensionality with asymmetric unidimensional IRT models

open access: yesBritish Journal of Mathematical and Statistical Psychology, EarlyView.
Abstract Unidimensional item response theory (IRT) models are widely used even in settings where assessment data exhibit subtle forms of multidimensionality. Recent empirical evidence suggests that when item difficulty is associated with dimensionality, asymmetric item characteristic curves (ICCs) emerge in the unidimensional approximation.
Xiangyi Liao   +5 more
wiley   +1 more source

Measuring Lead Userness: Development and Validation of a Hierarchical Scale

open access: yesCreativity and Innovation Management, Volume 34, Issue 4, Page 944-962, December 2025.
ABSTRACT Lead user theory has gained traction in both academia and practice, given that involving lead users (LUs) can yield more innovative and commercially successful products. Yet, measurement inconsistencies have hindered consensus on how to reliably assess lead userness.
Moritz Paulus   +3 more
wiley   +1 more source

Repeated Use of Emergency Departments for Nontraumatic Dental Conditions: Factors Associated With Being a Superutilizer

open access: yesCommunity Dentistry and Oral Epidemiology, EarlyView.
ABSTRACT Background Due to inadequate access to regular, affordable dental care, many patients turn to emergency departments (EDs) for the treatment of nontraumatic dental conditions (NTDCs). NTDC ED visits are a large burden on the U.S. healthcare system, with over 1.3 million visits each year and over $1 billion in associated charges.
Morgan Santoro   +5 more
wiley   +1 more source

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