Multitrait-multimethod (MTMM) analysis is one of the most frequently employed methods to examine the validity of psychological measures. Confirmatory factor analysis (CFA) is a commonly used analytic tool for examining MTMM data through the specification of trait and method latent variables. Most contemporary CFA-MTMM models either do not allow estimating correlations between the trait and method factors or they are restricted to linear trait-method relationships. There is no theoretical reason why trait and method relationships should always be linear, and quadratic relationships are frequently proposed in the social sciences. In this article, we present two approaches for examining quadratic relations between traits and methods through extended latent difference and latent means CFA-MTMM models (Pohl et al., 2008; Pohl and Steyer, 2010). An application of the new approaches to a multi-rater study of the nine inattention symptoms of attention-deficit/hyperactivity disorder in children ( = 752) and the results of a Monte Carlo study to test the applicability of the models under a variety of data conditions are described.
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http://dx.doi.org/10.3389/fpsyg.2019.00353 | DOI Listing |
BMC Nutr
January 2025
Clinic for Cognitive Neurology, University of Leipzig Medical Center, Leipzig, Germany.
Background: Obesity is a multifactorial disease reaching pandemic proportions with increasing healthcare costs, advocating the development of better prevention and treatment strategies. Previous research indicates that the gut microbiome plays an important role in metabolic, hormonal, and neuronal cross-talk underlying eating behavior. We therefore aim to examine the effects of prebiotic and neurocognitive behavioral interventions on food decision-making and to assay the underlying mechanisms in a Randomized Controlled Trial (RCT).
View Article and Find Full Text PDFAnn Gen Psychiatry
January 2025
Department of Psychiatry and Psychotherapy, Semmelweis University, 1083 Balassa utca 6, Budapest, Hungary.
Background: Increased levels of emotion dysregulation and impulsive behavior are overlapping symptoms in adult Attention-Deficit/Hyperactivity Disorder (aADHD) and Borderline Personality Disorder (BPD), both symptom domains reflecting on inhibitory control, although from different angles. Our aims were to describe their differences in the above conditions, investigate their associations with childhood traumatization, and to explore the potential mediation of emotion dysregulation and impulsivity between childhood traumas and personality functioning.
Methods: Young adults between 18 and 36 years diagnosed with aADHD (n = 100) and BPD (n = 63) were investigated with structured clinical interviews, while age-matched healthy controls (n = 100) were screened for psychiatric disorders.
BMC Med Educ
January 2025
Fundación Rioja Salud, Calle Piqueras 98, Logroño, 26006, Spain.
Background: In medicine, empathy refers to a predominantly cognitive attribute (rather than an emotional one), which is important as a foundation for positive physician-patient relationships. Physicians with a narcissistic personality trait have an assortment of characteristics that undermine their interpersonal functioning in clinical encounters with their patients. Evidence suggests an inverse relationship between empathy and certain characteristics of a narcissistic personality trait in general population.
View Article and Find Full Text PDFBMC Psychiatry
January 2025
Department of Clinical and Experimental Medicine, Section of Psychiatry, University of Pisa, 67 Via Roma, 56126, Pisa, Italy.
Objective: Autism spectrum disorder (ASD) is characterized by high rates of comorbidity with other mental disorders, including anxiety disorders and obsessive-compulsive disorder. Beyond a mere concept of comorbidity, recent literature is speculating the existence of a neurodevelopmental nature of such mental disorders. The aim of the study is to investigate the distribution of social-phobic, obsessive-compulsive and panic-agoraphobic traits within a sample of individuals with ASD, social anxiety disorder (SAD), obsessive-compulsive disorder (OCD) and panic disorder (PD).
View Article and Find Full Text PDFBMC Med Imaging
January 2025
Cancer Center, Department of Ultrasound Medicine, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, No. 158 Shang tang Road, Hangzhou, Zhejiang, 310011, China.
Background: This study aims to evaluate the predictive usefulness of a habitat radiomics model based on ultrasound images for anticipating lateral neck lymph node metastasis (LLNM) in differentiated thyroid cancer (DTC), and for pinpointing high-risk habitat regions and significant radiomics traits.
Methods: A group of 214 patients diagnosed with differentiated thyroid carcinoma (DTC) between August 2021 and August 2023 were included, consisting of 107 patients with confirmed postoperative lateral lymph node metastasis (LLNM) and 107 patients without metastasis or lateral cervical lymph node involvement. An additional cohort of 43 patients was recruited to serve as an independent external testing group for this study.
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