In the present paper the ORTHOMAX rotation problem is reconsidered. It is shown that its solution can be presented as a steepest ascent flow on the manifold of orthogonal matrices. A matrix formulation of the ORTHOMAX problem is given as an initial value problem for matrix differential equation of first order. The solution can be found by any available ODE numerical integrator. Thus the paper p...

OBJECTIVES The clinical learning environment is an influential factor in work-based learning. Evaluation of this environment gives insight into the educational functioning of clinical departments. The Postgraduate Hospital Educational Environment Measure (PHEEM) is an evaluation tool consisting of a validated questionnaire with 3 subscales. In this paper we further investigate the psychometric ...

OBJECTIVE The purpose of this study is to expand validity and reliability analysis of Turkish Version of Childhood Autism Rating Scale (CARS), whose internal consistency,content validity and discriminant validity for a limited size of sample group were examined by Sucuoğlu et al. METHOD 96 children and adolescents aged between 4-18, (48 diagnosed with pervasive developmental disorder (PDD) an...

This is the first study to comprehensively explore, develop and validate a scale for customer intrinsic value, brand trust consumer-brand relationship behavior life insurance industry in Sri Lanka. task was realized through an extensive literature review discussions with academic experts practitioners field. A factor analysis performed using principal component Varimax rotation. The refined sca...

There is a need to assess the psychiatric morbidity that appears as a consequence of terrorist attacks. The General Health Questionnaire (GHQ) has been used to this end, but its psychometric properties have never been evaluated in a population affected by terrorism. A sample of 891 participants included 162 direct victims of terrorist attacks and 729 relatives of the victims. All participants w...

We show that multivariate singular spectrum analysis (M-SSA) greatly helps study phase synchronization in a large system of coupled oscillators and in the presence of high observational noise levels. With no need for detailed knowledge of individual subsystems nor any a priori phase definition for each of them, we demonstrate that M-SSA can automatically identify multiple oscillatory modes and ...

The purpose of this study was to assess validity and reliability of the Physical Educators' Attitude Toward Teaching Individuals with Disabilities III (PEATID III; Rizzo, 1993) for future professionals. Participants (N = 3,464) were undergraduate students enrolled in the introductory adapted physical education course at 235 colleges and universities. Construct validity was obtained through prin...

The factor structure of the WAIS-R was examined in a U.K. sample free of neurological, psychiatric or sensory disorder (n = 120). Principal components analysis was performed with varimax rotation. Extraction of 2 and 3 factor solutions were specified a priori. For comparison purposes, the same procedures were followed with the U.S.A. standardisation sample data. Encouragingly for U.K. users of ...

Information systems (IS) benefits for nurses are outcomes related to the tangible products or improvements that nurses realize from using IS. This study examined the development and psychometric testing of a measure of nurses' benefits from IS. A random sample of 570 nurses working in hospitals, providing direct patient care, and using IS completed the study questionnaire. The internal consiste...