To address the mechanisms underlying hatha yoga's potential stress-reduction benefits, we compared inflammatory and endocrine responses of novice expert yoga practitioners before, during, after a restorative session, as well in two control conditions. Stressors before each three conditions provided data on extent to which speeded an individual's physiological recovery.A total 50 healthy women (mean age, 41.32 years; range, 30-65 years), 25 novices experts, were exposed (yoga, movement...

Despite increasing interest in and funding for financial literacy education programs the private public sectors, field of still has a major obstacle to overcome: lack widely disseminated measure literacy, developed through rigorous psychometric analyses. In this article, we develop such measure, focusing specifically on knowledge . Using item response theory (IRT), analyze items from three national surveys, resulting psychometrically sound 20‐item scale. By using IRT, current analysis uses...

Multivariate statistics can assist in refining the nosology and diagnosis of pervasive developmental disorders (PDD) also contribute important information for genetic studies. The Autism Diagnostic Interview-Revised (ADI-R) is one most widely used assessment instruments field PDD. current study investigated its factor structure convergence with measures adaptive, language, intellectual functioning.Analyses were conducted on 1,861 individuals PDD between ages 4 18 years (mean = 8.3, SD 3.2)....

Item response theory (IRT) is a widely used measurement model. When considering its use in education, health outcomes, and psychology, it likely to be one of the most impactful psychometric models existence. IRT has many advantages over classical test theory-based models. For these hold practice, strong assumptions must satisfied. One assumptions, local independence, focus work described here. Local independence assumption that, conditional on latent variable(s), item responses are unrelated...

To capture patients' perspectives on migraine-related cognitive symptoms during pre-headache, headache, post-headache, and interictal periods.Migraine-related are reported by people with migraine both between attacks. Associated disability, they increasingly viewed as a priority target for treatment. The Migraine Clinical Outcome Assessment System (MiCOAS) project is focused developing patient-centered core set of outcome measures the evaluation treatments. focuses incorporating experience...

Abstract Objective To describe the impact of migraine on functioning based comprehensive data collection, analysis, and reporting patients' experiences. Background Qualitative research conducted to understand perspectives living with has often focused narrow topics or specific groups patients been selectively reported. Methods interviews 71 participants were during two concept elicitation studies as part Migraine Clinical Outcome Assessment System (MiCOAS) project, an FDA grant‐funded...

Objective The objective of the analyses described here was to develop thresholds defining clinically meaningful response on total and item scores 6‐item short‐form Headache Impact Test (HIT‐6) in a population patients with chronic migraine (CM). Background HIT‐6 is short, easily understood, useful measure impact headache daily life. Though widely used, limited literature supports threshold value for within individuals over time score scores, especially CM population. Methods PROMISE‐2...

Abstract Background There is renewed emphasis on including patients in determining, defining, and prioritizing outcomes for migraine treatment. Objectives To obtain insights directly from people living with their priorities Methods A total of 40 qualitative interviews were conducted as part the Migraine Clinical Outcome Assessment System project, a United States Food Drug Administration grant‐funded program to develop core set patient‐centered outcome measures clinical trials. Interviews...

Background: Empirical studies of the structure autism symptoms have challenged three‐domain model impairment currently characterizing pervasive developmental disorders (PDD). The objective this study was to assess internal validity DSM as a conceptual for describing PDD, while paying particular attention certain subject characteristics. Methods: Parents and teachers completed DSM‐IV‐referenced rating scale 3‐ 12‐year‐old clinic referrals with PDD (n = 730). Ratings were submitted...

The field of optometry has become increasingly interested in patient-reported outcomes, reflecting a common trend occurring across the spectrum healthcare. This article reviews development Contact Lens User Experience: CLUE system designed to assess patient evaluations contact lenses. was built using modern psychometric methods such as factor analysis and item response theory.

We use data from the Understanding America Study (UAS) internet panel to build upon Knoll and Houts Financial Knowledge Scale (FKS). Specifically, we provide practitioners with a shorter 10‐item scale, describe additional analyses on both full‐ short‐form versions of scales, explore relationship between FKS scores variety retirement‐related outcome variables. Importantly, scales are developed using statistical model that accounts for guessing, which allows us more accurate estimates...

We examined the reliability and validity of 6-item Headache Impact Test (HIT-6) specifically on patients with chronic migraine (CM) from PROMISE-2 clinical trial.The conceptual framework HIT-6 was evaluated using baseline data study (NCT02974153; N = 1072). A unidimensional graded response model within item theory (IRT) used to evaluate fit characteristics. Using week 12 data, convergent discriminant by correlation coefficients. Sensitivity change assessed evaluating correlations between...

Abstract Background The coronavirus disease 2019 (COVID‐19) pandemic is an ongoing global health crisis that has had a range of impacts on people living with migraine. Methods Qualitative interviews performed as part the Migraine Clinical Outcome Assessment System project, multi‐stage Food and Drug Administration–grant funded program to develop patient‐centered core set outcome measures for use in migraine clinical trials, offered opportunity explore experience during well examine whether...

Abstract Objective To assess the utility of novel patient‐identified (PI) most bothersome symptom (MBS) measure from PROMISE‐2, a phase 3 trial eptinezumab for preventive treatment chronic migraine. Background Relief migraine symptoms can influence satisfaction with and therapeutic persistence. Understanding impact on PI‐MBS could improve clinical decision‐making. Methods In patients received 100, 300 mg, or placebo administered intravenously every 12 weeks up to 2 doses ( n = 1072). was an...

Behavior and emotional problems are often present in very young children with autism spectrum disorders (ASDs) but their nosology has been the object of scant empirical attention. The objective this study was to assess construct validity select Diagnostic Statistical Manual Mental Disorders (DSM)—defined syndromes (ADHD, ODD, Mood disorder) preschoolers ASD ( N = 229). Parents teachers completed Early Childhood Inventory—4, a behavior rating scale based on DSM-IV, ratings were submitted...

Digital measures are becoming more prevalent in clinical development. Methods for robust evaluation increasingly well defined, yet the primary barrier digital to transition beyond exploratory usage often relies on a comparison existing standards. This article focuses how researchers should approach complex issue of comparing across assessment modalities. We discuss comparisons subjective versus objective assessments, or performance-based behavioral measures, and we pay particular attention...

The violation of the assumption local independence when applying item response theory (IRT) models has been shown to have a negative impact on all estimates obtained from given model. Numerous indices and statistics proposed aid analysts in detection dependence (LD). A Monte Carlo study was conducted evaluate relative performance selected LD measures conditions considered typical studies collecting psychological assessment data. Both Jackknife Slope Index likelihood ratio statistic G 2 are...

Abstract In the present study, authors factor-analyzed responses from 1,141 American undergraduate students to Valencia Scale of Attitudes and Beliefs Toward Hypnosis-Client Version. They obtained an 8-factor solution accounting for 66% total variance in responses. A confirmatory factor analysis indicated acceptable fit their model those reported earlier by CitationCarvalho et al. (2007) CitationCapafons, Mendoza, (2008) using Portuguese international samples, respectively. Unlike previous...

Abstract With decades of advance research and recent developments in the drug medical device regulatory approval process, patient-reported outcomes (PROs) are becoming increasingly important clinical trials. While trial analyses typically treat scores from PROs as observed variables, potential to use latent variable models when analyzing patient responses data presents novel opportunities for both psychometrics science. An accessible overview commonly used analyze longitudinal statistical...