Search results for " factor analysis"
showing 10 items of 441 documents
Dimensionality of depression in acute schizophrenia: a methodological study using the Bech-Rafaelsen Melancholia Scale (BRMES).
1998
Abstract Despite the great clinical importance of depressive symptoms in schizophrenia there is a lack of studies on the assessment and evaluation of depression in acutely psychotic patients. For the Bech-Rafaelsen Melancholia Scale (BRMES), among other advantages, the concept of unidimensionality was confirmed in patients with major depression by different methodological approaches including Rasch analysis. The present evaluation was designed to investigate the scale properties of the BRMES in acutely schizophrenic patients with particular emphasis on the dimensionality of the scale. Three different statistical approaches were used: principal component analysis in combination with computer…
An examination of the psychometric structure of the Multidimensional Pain Inventory in temporomandibular disorder patients: a confirmatory factor ana…
2006
Abstract Background This paper seeks to analyse the psychometric and structural properties of the Multidimensional Pain Inventory (MPI) in a sample of temporomandibular disorder patients. Methods The internal consistency of the scales was obtained. Confirmatory Factor Analysis was carried out to test the MPI structure section by section in a sample of 114 temporomandibular disorder patients. Results Nearly all scales obtained good reliability indexes. The original structure could not be totally confirmed. However, with a few adjustments we obtained a satisfactory structural model of the MPI which was slightly different from the original: certain items and the Self control scale were elimina…
Validation of the Spanish version of the 9-item Shared Decision-Making Questionnaire
2014
Objective To translate and assess the psychometric properties of the 9-item Shared Decision-Making Questionnaire (SDM-Q-9) for measuring patients' perceptions of how clinicians' performance fits the SDM process. Design Cross-sectional study. Setting and Participants Data were collected in primary care health centres. Patients suffering from chronic diseases and facing a medical decision were included in the study. Measurements The original German SDM-Q-9 was translated to Spanish using the process of cross-cultural adaptation of self-reported measures as the methodological model for Spanish translation. Reliability (internal consistency) and construct validity [exploratory (EFA) and confirm…
Self-Other Differentiation Scale: Dimensionality, IRT Parameterization, and Measurement Invariance
2018
The Self-Other Differentiation Scale (Olver, Aries, & Batgos, 1989) is a self-report instrument assessing the experience of a separate sense of self from others. The authors aimed to examine its dimensionality, reliability, and measurement invariance across gender. It was completed by 348 participants (48% men) from 17 to 30 years old in Study 1, 348 participants (40% men) from 18 to 28 years old in Study 2, and 1,068 participants (49% men) from 17 to 28 years old in Study 3. The results supported the hypothesis of just one factor underlying the scale; they also showed an appropriate internal consistency and a partial measurement invariance across gender. Results also showed evidence fo…
Psychometric properties of the Brief Symptom Inventory-18 in a Spanish breast cancer sample
2007
Abstract Objective The objective of this work was to study the psychometric and structural properties of the Brief Symptom Inventory-18 (BSI-18) in a sample of breast cancer patients ( N =175). Methods Confirmatory factor analyses were conducted. Two models were tested: the theoretical model with the original structure (three-dimensional), and the empirical model (a four-factor structure) obtained through exploratory factor analysis initially performed by the authors of the BSI-18. Results The eligible structure was the original proposal consisting of three dimensions: somatization, depression, and anxiety scores. These measures also showed good internal consistency. Conclusion The results …
Psychological assessment of patients with temporomandibular disorders: confirmatory analysis of the dimensional structure of the Brief Symptoms Inven…
2006
Abstract Objective This article analyzes the psychometric and structural properties of the Brief Symptoms Inventory 18 in a sample of patients with temporomandibular disorders (TMDs), given the convenience of a brief evaluation of distress in these patients. Methods Confirmatory factor analysis was carried out in a sample of 114 patients with TMDs. Two models were tested: the theoretical model with the original structure proposed—which considers three dimensions—and the empirical model obtained through the exploratory factor analysis initially carried out by Leonard R. Derogatis—which consists of the four-factor structure. Results Both models reached satisfactory indexes in confirmatory fac…
Multidimensional Sexual Well-being Scale for Older Adults: Validity Evidence from a Polish Sample
2021
Here, we report the results of a Polish adaptation of the Multidimensional Sexual Well-being Scale (MSWBS) for older adults. The MSWBS is a short self-report scale for assessing the five dimensions of an individual's sexual well-being: frequency of caressing, sexual intimacy, sexual compliance, sexual satisfaction, and sexual distress. The aim of our adaptation was to examine the utility of the scale in a country with conservative views on the sexuality of older people, which will help health care providers and researchers to better understand the sexual needs of older people. The study included 507 participants, aged 60-92. We found the reliability of the scale to be satisfactory (Cronbach…
Methods matter: Testing competing models for designing short-scale Big-Five assessments
2015
Abstract Many psychological instruments are psychometrically inadequate because derived person-parameters are unfounded and models will be rejected using established psychometric criteria. One strategy towards improving the psychometric properties is to shorten instruments. We present and compare the following procedures for the abbreviation of self-report assessments on the Trait Self-Description Inventory in a sample of 14,347 participants: (a) Maximizing reliability/main loadings, (b) Minimizing modification indices/cross loadings, (c) the PURIFY Algorithm in Tetrad, (d) Ant Colony Optimization, and (e) a genetic algorithm. Ant Colony Optimization was superior to all other methods in imp…
Fiabilidad y validez de constructo de la traducción al valenciano/catalán del Cuestionario para la Evaluación del Síndrome de Quemarse por el trabajo…
2021
The aim of this study was to evaluate the reliability and construct validity of the Valencian/Catalonian version of the Spanish Burnout Inventory (SBI) in a sample of non-university teachers from the Valencia province (Spain). The sample consisted of 1359 teachers (67.2% were women). This instrument contains 20 items distributed into four dimensions: Enthusiasm toward the job (5 items), Psychological exhaustion (4 items), Indolence (6 items) and Guilt (5 items). The psychometric properties were examined through the following analyses: confirmatory factor analysis (CFA) and reliability (Cronbach’s alpha). All items achieved appropriate values for both statistical and psychometric parameters,…
Podstawowe samowartościowanie - walidacja polskiej wersji skali do pomiaru Core Self-Evaluations
2017
Praca przedstawia walidację polskiej wersji skali do pomiaru podstawowego samowartościowania (Core Self-Evaluations – CSES; Judge, Erez, Bono i Thorensen, 2003). Podstawowe samowartościowanie to poglądy danej osoby, dotyczące jej skuteczności, zdolności, wiary we własne siły i pozytywnego nastawienia do siebie i świata. Koncepcja skali jest konstruktem opartym o indywidualne zmienne dyspozycyjne, często badane w kontekście organizacyjnym. Są to: samoocena, wewnętrzne umiejscowienie kontroli, zgeneralizowana samoskuteczność oraz pozytywna afektywność. Na podstawie danych z pięciu badań przeprowadzonych w latach 2014-2016, na łącznie n=3207 osób, w większości pracujących, udało się potwierdzi…