Comparison of Two Methods for Determining Item Characteristic Functions and Latent Variable Time-Course for Pharmacometric Item Response Models.

There are examples in the literature demonstrating different approaches to defining the item characteristic functions (ICF) and characterizing the latent variable time-course within a pharmacometrics item response theory (IRT) framework. One such method estimates both the ICF and latent variable time-course simultaneously, and another method establishes the ICF first then models the latent variable directly. To date, a direct comparison of the "simultaneous" and "sequential" methodologies described in this work has not yet been systematically investigated.

The 5D Cycle for Health Equity: Combining Black Feminism, Radical Imagination, and Appreciative Inquiry to Transform Perinatal Quality Improvement.

Too often, quality improvement initiatives are rooted in the health care system's oppressive structures and hierarchies. Transformative quality improvement models that embody the wisdom and liberatory potential of oppressed groups areneeded to address the alarming inequities within perinatal health. Inspired by experiences with Appreciative Inquiry, a possibility-focused change model, and frustrated by the limits of traditional quality improvement, the author sought new approaches to perinatal quality improvement.