In schizophrenia, immune-inflammatory pathways are strongly associated with depressive and anxiety symptoms, which are part of a latent trait which comprises neurocognitive impairments and schizophrenia symptoms.
Sign Up to like & getrecommendations! Published in 2021 at "Journal of affective disorders"
DOI: 10.1016/j.jad.2021.03.062
Abstract: BACKGROUND The aim is to examine whether biomarkers of the immune-inflammatory response (IRS) and endogenous opioid (EOS) systems are associated with affective symptoms in schizophrenia. METHODS We recruited 115 schizophrenia patients and 43 healthy controls… read more here.
Keywords: schizophrenia; hdrs; strongly associated; schizophrenia symptoms ... See more keywords
Early adversity and internalizing symptoms in adolescence: Mediation by individual differences in latent trait cortisol
Sign Up to like & getrecommendations! Published in 2018 at "Development and Psychopathology"
DOI: 10.1017/s0954579418000044
Abstract: Abstract Research suggests that early adversity places individuals at risk for psychopathology across the life span. Guided by concepts of allostasis and allostatic load, the present study examined whether early adversity contributes to the development… read more here.
Keywords: internalizing symptoms; individual differences; early adversity; latent trait ... See more keywords
Uncertainty in Latent Trait Models
Sign Up to like & getrecommendations! Published in 2020 at "Applied Psychological Measurement"
DOI: 10.1177/0146621620920932
Abstract: A model that extends the Rasch model and the Partial Credit Model to account for subject-specific uncertainty when responding to items is proposed. It is demonstrated that ignoring the subject-specific uncertainty may yield biased estimates… read more here.
Keywords: trait; uncertainty; model; trait models ... See more keywords
The Explanatory Generalized Graded Unfolding Model: Incorporating Collateral Information to Improve the Latent Trait Estimation Accuracy
Sign Up to like & getrecommendations! Published in 2022 at "Applied Psychological Measurement"
DOI: 10.1177/01466216211051717
Abstract: Collateral information has been used to address subpopulation heterogeneity and increase estimation accuracy in some large-scale cognitive assessments. The methodology that takes collateral information into account has not been developed and explored in published research… read more here.
Keywords: latent trait; collateral information; information; trait estimation ... See more keywords
A stochastic approximation expectation maximization algorithm for estimating Ramsay-curve three-parameter normal ogive model with non-normal latent trait distributions
Sign Up to like & getrecommendations! Published in 2022 at "Frontiers in Psychology"
DOI: 10.3389/fpsyg.2022.971126
Abstract: In the estimation of item response models, the normality of latent traits is frequently assumed. However, this assumption may be untenable in real testing. In contrast to the conventional three-parameter normal ogive (3PNO) model, a… read more here.
Keywords: 3pno model; trait distributions; model; three parameter ... See more keywords