Results 71 to 80 of about 1,633 (190)
Suicide and Life-Threatening Behavior, Volume 56, Issue 3, June 2026.ABSTRACT Introduction The Columbia Suicide Severity Rating Scale (C‐SSRS) is widely used for assessing suicidal thoughts and behaviors, yet evidence on the validity of its scoring outputs in community‐based samples from low‐ and middle‐income countries remains scarce. Methods Participants included 2076 young adults (mean age 23.45, 47% female) from the
Rodolfo Furlan Damiano +6 more
wiley +1 more source
SIMEX-Based and Analytical Bias Corrections in Stocking–Lord Linking
AnalyticsStocking–Lord (SL) linking is a popular linking method for group comparisons based on dichotomous item responses. This article proposes a bias correction technique based on the simulation extrapolation (SIMEX) method for SL linking in the 2PL model in ...
Alexander Robitzsch
doaj +1 more source
Direct Laser Writing of Magnetic Micro Actuators With a Stimulus‐Responsive Compliant Hinge
Advanced Materials Technologies, Volume 11, Issue 10, 22 May 2026.This study presents a versatile modular design strategy for adaptive 3D microactuators. Using two‐photon‐induced C,H insertion reactions within solid polymer layers, chemically distinct hinge and stimulus responsive materials are patterned in one step. The hinge's properties enable tunable motion, mechanical control, and reconfigurable actuation across
Eleonora Galli +4 more
wiley +1 more source
Detection of latent differential item functioning (DIF) using mixture 2PL IRT model with covariate [PDF]
, 2017 Mixture IRT models have been shown to improve the identification of latent group structure and facilitate the estimation of model parameters when covariates are incorporated or the Bayesian estimation method is employed.
Zhang, Ya
core
A modified lethal–potentially lethal model for oxygen‐mediated FLASH sparing in stem cell niches
Medical Physics, Volume 53, Issue 5, May 2026.Abstract Background Ultra‐high dose rate (FLASH) irradiation can reduce normal‐tissue toxicity while preserving tumor control, but a mechanistic explanation consistent with classical radiobiology remains incomplete. In particular, oxygen‐depletion arguments based solely on bulk tissue oxygenation can appear inconsistent with clinically relevant ...
Sumin Zhou
wiley +1 more source
7. Lecture (05.12.2016): Specification of the 2PL-Birnbaum model
, 2016 Topics: Specification of the 2PL-Birnbaum model in Mplus for the life satisfaction data, Test of the hypothesis: „The Rasch model holds“ using the Wald test, Specification of the 2PL-Birnbaum model in Mplus for generated data that follow the Birnbaum ...
Multimediazentrum, Steyer, Rolf
core
An optimized Bayesian hierarchical two-parameter logistic model for small-sample item calibration
, 2019 Accurate item calibration in models of item response theory (IRT) requires rather large samples. For instance, [Formula: see text] respondents are typically recommended for the two-parameter logistic (2PL) model.
Frey, Andreas +2 more
core +1 more source
Information-Weighted and Normal Density-Weighted Haebara Linking
InformationLinking methods based on item response theory aim to place item parameters from different groups, test forms, or test administrations onto a common scale.
Alexander Robitzsch
doaj +1 more source
Acta Anaesthesiologica Scandinavica, Volume 70, Issue 5, May 2026.ABSTRACT Non‐invasive blood pressure (NIBP) measurement can be challenging in patients with obesity. We aimed to determine if arm conicity, mid arm circumference or body mass index (BMI) could be used to predict pre‐operative and intra‐operative NIBP measurement error. Eligible patients had elective surgery and BMI ≥ 35 kg/m2. Mid‐arm circumference and
Victoria Eley +7 more
wiley +1 more source