Internal and External Validity of Sluggish Cognitive Tempo in Young Adolescents with ADHD [PDF]
, 2016 Adolescents with Sluggish Cognitive Tempo (SCT) show symptoms of slowness, mental confusion, excessive daydreaming, low motivation, and drowsiness/sleepiness.
Smith, Zoe
core +1 more source
A comparison of parameter covariance estimation methods for item response models in an expectation-maximization framework [PDF]
, 2017 The Expectation-Maximization (EM) algorithm is a method for finding the maximum likelihood estimate of a model in the presence of missing data. Unfortunately, EM does not produce a parameter covariance matrix for standard errors.
Pritikin, Joshua N.
core +2 more sources
External validation of a bifactor model of oppositional defiant disorder [PDF]
Molecular Psychiatry, 2018 AbstractDimensions of irritability and defiant behavior, though correlated within the structure of ODD, convey separable developmental risks through adolescence and adulthood. Irritability predicts depression and anxiety, whereas defiant behavior is a precursor to antisocial outcomes.
Waldman, I. +3 more
openaire +3 more sources
General and specific components of depression and anxiety in an adolescent population. [PDF]
, 2011 BACKGROUND: Depressive and anxiety symptoms often co-occur resulting in a debate about common and distinct features of depression and anxiety. METHODS: An exploratory factor analysis (EFA) and a bifactor modelling approach were used to separate a general
Abbott, Rosemary A +3 more
core +5 more sources
A Confirmatory Factor Analysis of Facets of Psychological Flexibility in a Sample of People Seeking Treatment for Chronic Pain [PDF]
, 2015 Background: Evidence supports the validity of individual components of the psychological flexibility model in the context of chronic pain. However, there is a need to test the inter-relationships amongst measures of individual components of psychological
Lance M. McCracken +2 more
core +3 more sources
Psychology in the Schools, EarlyView.ABSTRACT This study applied multidimensional scaling (MDS) to the Cognitive Assessment System‐Second Edition (CAS2) to investigate the structural validity of PASS theory (Planning, Attention, Simultaneous, Successive) across two age groups (5−7, 8−18 years) in the normative sample (N = 1342).
Ryan J. McGill
wiley +1 more source
Further Investigation of the Dimensionality of the Questionnaire for Eudaimonic Well-Being
Frontiers in Psychology, 2022 The dimensionality of the Questionnaire for Eudaimonic Well-Being (QEWB) has been a topic of debate and divergent findings in the literature up to date.
Amanda Cromhout +3 more
doaj +1 more source
Journal of Abnormal Child Psychology, 2019 The symmetrical bifactor model is often applied to attention-deficit/hyperactivity disorder (ADHD)-hyperactive/impulsive (HI), ADHD-inattentive (IN), and oppositional defiant disorder (ODD) symptoms, but this model frequently yields anomalous or inadmissible results.
G. Leonard Burns +4 more
openaire +3 more sources
Disparity between General Symptom Relief and Remission Criteria in the Positive and Negative Syndrome Scale (PANSS): A Post-treatment Bifactor Item Response Theory Model. [PDF]
, 2017 Objective: Total scale scores derived by summing ratings from the 30-item PANSS are commonly used in clinical trial research to measure overall symptom severity, and percentage reductions in the total scores are sometimes used to document the efficacy of
Anderson, Ariana E +5 more
core
Bifactor analysis and construct validity of the five facet mindfulness questionnaire (FFMQ) in non-clinical Spanish samples [PDF]
, 2015 The objective of the present study was to examine the dimensionality, reliability, and construct validity of the Five Facet Mindfulness Questionnaire (FFMQ) in three Spanish samples using structural equation modeling (SEM).
Antoni eSerrano-Blanco +6 more
core +6 more sources