Search results for "factor analys"
showing 10 items of 603 documents
Tensor decomposition of EEG signals: A brief review
2015
Electroencephalography (EEG) is one fundamental tool for functional brain imaging. EEG signals tend to be represented by a vector or a matrix to facilitate data processing and analysis with generally understood methodologies like time-series analysis, spectral analysis and matrix decomposition. Indeed, EEG signals are often naturally born with more than two modes of time and space, and they can be denoted by a multi-way array called as tensor. This review summarizes the current progress of tensor decomposition of EEG signals with three aspects. The first is about the existing modes and tensors of EEG signals. Second, two fundamental tensor decomposition models, canonical polyadic decomposit…
National collective identity in transitional societies: Salience and relations to life satisfaction for youth in South Africa, Albania, Bulgaria, the…
2017
In this study we investigated the salience of the construct of national collective identity and its associations with life satisfaction among adolescents living in transitional societies characterised by relevant change in the last decades. Participants were 1 066 adolescents (M = 15.35 years, SD = 1.35) from South Africa (n = 186) and five Central Eastern European countries, including Albania (n = 209), Bulgaria (n = 146), Czech Republic (n = 306), Kosovo (n = 116), and Romania (n = 103). They completed a questionnaire including national identity and life satisfaction scales. Data were analysed using confirmatory factor analysis and multi-group structural equation modeling. Results showed …
Assessing therapist development: Reliability and validity of the Supervisee Levels Questionnaire (SLQ-R).
2019
BACKGROUND Therapist development is a crucial target for clinical training in order to ensure high-quality psychotherapy. A major challenge in examining therapeutic development is the assessment of developmental processes. The Supervisee Levels Questionnaire (SLQ-R) was analyzed in this study to examine its validity, reliability, and underlying dimensional structure. METHOD Seven hundred and sixty therapists participated in an online survey concerning their current psychotherapy training. The factor structure as well as the validity of the SLQ-R were investigated using exploratory and confirmatory factor analysis. RESULTS In line with the results of the exploratory factor analyses, a Bifact…
The assessment of detachment among university students: Validation of the Recovery Experience Questionnaire in educational contexts
2017
El objetivo de este estudio fue adaptar y validar el Cuestionario de Experiencias de Recuperación (Recovery Experience Questionnaire) para su uso en un contexto educativo. Hasta el momento, la evaluación del detach- ment o distanciamiento psicológico ha sido utilizada fundamentalmente en contextos laborales. El estudio tuvo como objetivo verificar la validez fac- torial y la validez de criterio, a través de la correlación con variables como la autorregulación, el compromiso (engagement), las estrategias de afrontamien- to, y las dimensiones de la personalidad contempladas en el modelo de los cinco grandes factores (Big Five Model) en una muestra de 468 estudiantes universitarios españoles. …
Dimensions of executive functioning: Evidence from children
2003
This study investigated dimensions of executive functioning in 8- to 13-year-old children. Three tasks from the Cambridge Neuropsychological Test Automated Battery (CANTAB), two tasks from the NEPSY battery and some additional executive function (EF) tests were administered to 108 children. In line with earlier work, modest correlations among EF measures were obtained (r < .4). Both exploratory and confirmatory factor analyses yielded three interrelated factors, which resembled those obtained by Miyake et al. (2000) and which were—with some reservations—labelled Working Memory (WM), Inhibition and Shifting. Age correlated with performance on most individual EF measures as well as Shifting a…
Valutare la devianza costruttiva nei contesti di lavoro
2017
Il presente lavoro fornisce un contributo al tema della devianza organizzativa costruttiva, intesa come un insieme di comportamenti volontari di violazione delle norme organizzative e delle procedure di lavoro, con l’intento di rispondere efficacemente ai problemi organizzativi e finalizzati a conseguire una buona performance. Attraverso due studi indipendenti è stato proposto un adattamento italiano della scala di devianza organizzativa costruttiva (Galperin, 2012), che ha mostrato, tramite analisi esplorative e confermative, soddisfacenti risultati dal punto di vista psicometrico e della validità convergente e discriminante. Sono emerse inoltre le relazioni positive del costrutto con il p…
The Psychobiosocial States (PBS-S) Scale
2019
Abstract. This study examined the factor structure and reliability of the Psychobiosocial States (PBS-S) scale in the assessment of situational performance-related experiences. We administered the scale to 483 Finnish athletes before a practice session to assess the intensity and perceived impact of their performance-related feeling states. The hypothesized two-factor structure indicating functional effects (10 items) and dysfunctional effects (10 items) toward performance was examined via exploratory structural equation modeling (ESEM) and confirmatory factor analysis (CFA). Regarding the intensity and perceived impact dimensions of reported states, ESEM and CFA showed a good fit for a tw…
Three- to four-year-old children’s socioemotional competencies assessed by kindergarten teachers in general and physical education settings, and by p…
2014
Summary. Early childhood education programs represent a valuable early learning opportunity for promoting the socioemotional skills. The aims of the study were to validate the socioemotional skills observation scale, to compare 3-4 year-old children’s socioemotional competencies in general kindergarten settings and in a PE session, separately by gender, and to compare 3-4 year-old children’s socioemotional competencies in general kindergarten settings and at home. The participants were 59 children (23 girls, 36 boys) from six communal kindergartens in Finland, their parents, and early educators. The data were analyzed using the confirmatory factor analysis and t-tests. The results showed th…
A Stochastic Variance Factor Model for Large Datasets and an Application to S&P Data
2008
The aim of this paper is to consider multivariate stochastic volatility models for large dimensional datasets. We suggest the use of the principal component methodology of Stock and Watson [Stock, J.H., Watson, M.W., 2002. Macroeconomic forecasting using diffusion indices. Journal of Business and Economic Statistics, 20, 147–162] for the stochastic volatility factor model discussed by Harvey, Ruiz, and Shephard [Harvey, A.C., Ruiz, E., Shephard, N., 1994. Multivariate Stochastic Variance Models. Review of Economic Studies, 61, 247–264]. We provide theoretical and Monte Carlo results on this method and apply it to S&P data.
The shortened Corporate Ethical Virtues scale
2018
So far, the field of business ethics lacks validated measures for assessing virtues at the organizational level. The aim of this study is to investigate the measurement invariance of a shortened Corporate Ethical Virtues scale. In this manner, we contribute to validating an instrument that is both psychometrically sound and efficient to use. We conducted two survey studies of two independent groups (managers and school psychologists). Confirmatory factor analysis supported the eight‐factor model of the scale, and we found it to be invariant in two different occupational groups. The managers gave higher appraisals of ethical culture than the psychologists did in seven out of the eight dimens…