BACKGROUND The Shoulder Pain and Disability Index (SPADI) is a tool designed to evaluate the impact of shoulder pathology. The aim of this study was to cross culturally adapt a Spanish version of the SPADI for Spanish population with a musculoskeletal shoulder pain, and to determine the psychometric properties of this instrument using confirmatory factor analysis (CFA). METHODS Cross-cultural...

BACKGROUND The Minnesota Living with Heart Failure Questionnaire (MLHFQ) is one of the most widely used health-related quality of life questionnaires for patients with heart failure (HF). It provides scores for two dimensions, physical and emotional, and a total score. However, there are some concerns about its factor structure and alternatives have been proposed, some including a third factor ...

In The Netherlands, the Ministry of Security and Justice requires the assessment of the Psychopathy Checklist-Revised (PCL-R; Hare, 1991; Hare, 2003) in all forensic psychiatric inpatients. To examine the four-factor structure of the Psychopathy Checklist-Revised, confirmatory factor analysis (CFA) was conducted using a Dutch sample of forensic psychiatric inpatients (N=411) and the results ind...

OBJECTIVE The aim of this study was to evaluate the psychometric properties of the Brazilian version of the Dental Fear Survey (DFS), previously translated to the Brazilian Portuguese language and validated. METHODS A cross-sectional study with 1,256 undergraduates from the city of Belo Horizonte, Brazil, was carried out. The DFS and a questionnaire about previous dental experiences were self...

OBJECTIVES To examine the factor structure and to evaluate the longitudinal measurement invariance of the demand-control-support questionnaire (DCSQ), using the Swedish Longitudinal Occupational Survey of Health (SLOSH). METHODS A confirmatory factor analysis (CFA) and multi-group confirmatory factor analysis (MGCFA) models within the framework of structural equation modeling (SEM) have been ...

The purpose of this study was to construct and validate a "Perceived Physical Literacy Instrument" (PPLI) for physical education teachers. Based on literature review and focus group interviews, an 18-item instrument was developed for the initial tests. This self-report measure, using a 5-point Likert scale, formed the PPLI and was administered to 336 physical education teachers in Hong Kong. Th...

Confirmatory factor analysis (CFA) was used to examine the underlying structure of the negative symptoms of schizophrenia as measured by the Scale for the Assessment of Negative Symptoms (SANS). Schizophrenia patients (AT = 457) were assessed with the SANS on at least I of 2 occasions: (a) 2-4 weeks after an index hospitalization, and (b) after a clinical stabilization period that lasted 3-6 mo...

BACKGROUND There is a need for useful standardized Quality of Life (QoL) measures for people diagnosed with schizophrenia. Therefore, a short form of the self-administered Quality of Life in Schizophrenia (QLiS) scale was developed and validated. METHODS Four steps were taken to develop the abridged version using samples from the Clinical Analysis of the Treatment of Schizophrenia (CATS) stud...

There is disagreement on whether attention-deficit/hyperactivity disorder (ADHD) symptoms are best characterized along two dimensions consisting of inattention and hyperactivity/impulsivity or three dimensions where hyperactivity and impulsivity are separate. To address this, the current study investigated the underlying symptom dimensions of ADHD by examining two- and three-factor models of AD...

This study investigated the factor structure of the 26-item Midlife Development Inventory (MIDI) Personality Scale in a sample of 2,720 Americans. It was found that whereas confirmatory factor analysis (CFA) did not provide an acceptable fit to the data, exploratory structural equation modeling (ESEM) provided an acceptable fit. The results of ESEM revealed that the a priori five-factor structu...