Search results for "faktorianalyysi"
showing 10 items of 22 documents
Variational Approximations for Generalized Linear Latent Variable Models
2017
Generalized linear latent variable models (GLLVMs) are a powerful class of models for understanding the relationships among multiple, correlated responses. Estimation, however, presents a major challenge, as the marginal likelihood does not possess a closed form for nonnormal responses. We propose a variational approximation (VA) method for estimating GLLVMs. For the common cases of binary, ordinal, and overdispersed count data, we derive fully closed-form approximations to the marginal log-likelihood function in each case. Compared to other methods such as the expectation-maximization algorithm, estimation using VA is fast and straightforward to implement. Predictions of the latent variabl…
Štruktúra zdravotnej gramotnosti u adolescentov [The structure of health literacy in adolescents]
2019
Objectives: The current study dealt with the concept of health literacy in adolescents. The main aim of the study was to examine the structure of adolescents, health literacy. The aim was also to discuss the current need and potential for the development of adolescents, health literacy in educational setting. - Sample and settings: The sample comprised 290 participants from four Slovak elementary schools. The participants were in the 7th and 9th grade. Adolescents, health literacy was measured using HLSAC with additional items approved by the HBSC expert group (Health Behaviour in School-aged Children). Hypothesis. The authors assumed that in the given population, health literacy falls alon…
L2 English vocabulary breadth and knowledge of derivational morphology : One or two constructs?
2022
Derivational morphology (DM) and how it can be assessed have been investigated relatively rarely in language learning and testing research. The goal of this study is to add to the understanding of the nature of DM knowledge, exploring whether and how it is separable from vocabulary breadth. Eight L2 (second or foreign language) English DM knowledge measures and three measures of the size of the English vocabulary were administered to 120 learners. We conducted two confirmatory factor analyses, one with one underlying factor and the other treating vocabulary breadth and DM as separate. As neither model had a satisfactory fit without introducing a residual covariance to the two-factor model,…
Cross-Cultural Adaptation and Validation of the Finnish Version of the Michigan Hand Outcomes Questionnaire
2018
Background and Aims: Michigan Hand Outcomes Questionnaire is a widely used patient-reported outcome measure in hand surgery. The aim of this study was to translate and validate the Michigan Hand Outcomes Questionnaire into Finnish for Finnish patients with hand problems following international standards and guidelines. Material and Methods: The original English Michigan Hand Outcomes Questionnaire was translated into Finnish. Altogether, 115 patients completed the Finnish Michigan Hand Outcomes Questionnaire, and reference outcomes: Disabilities of the Arm and Shoulder, EQ-5D 3L and pain intensity on a visual analog scale. Grip and key pinch forces were measured. After 1–2 weeks, 63 patient…
Reliability and validity of the COPE Index among caregivers of disabled people.
2017
Aim To study the reliability and validity of the Carers of Older People in Europe (COPE) Index among caregivers of disabled people of different ages. Methods A cross-sectional design of Finnish caregivers (n = 1117). Exploratory factor analysis (EFA) was performed separately on samples of three different age groups, and the internal consistencies of the subscales were investigated. Results Three factors were identified; Cronbach's alpha was 0.83–0.86 for negative impact and 0.77–0.78 for quality of support, indicating good internal consistency. The third factor, positive value, was less consistent across the age groups (α < 0.66). Conclusions The COPE Index is a valid and reliable screening…
Koettuun informaatioteknologian hyödyllisyyteen vaikuttavat tekijät hoitotyöntekijöillä
2015
Terveydenhuoltoon suunnattu informaatioteknologia on lisääntynyt viimeisten vuosien aikana merkittävästi ja sen odotetaan lisääntyvän edelleen. Teknologian käyttöä kuvaavan TAM-mallin mukaan koetulla hyödyllisyydellä on suora yhteys teknologian käyttöön. Koetun hyödyllisyyden on todettu myös olevan terveydenhuollossa muita toimialoja merkityksellisempi tekijä teknologian käytön selittäjänä. Tämän tutkimuksen tarkoituksena oli selvittää tekijöitä, jotka selittävät hoitohenkilöstön kokemaan teknologian hyödyllisyyttä. Tutkimusaineisto kerättiin kolmen sairaanhoitopiirin alueelta hoitohenkilöstölle suunnatulla verkkokyselyllä. Verkkokyselyn vastaamisen aloitti kaikkiaan 359 henkilöä, joista ai…
Koululiikunnan pedagogiset ulottuvuudet -mittarin validiteetin ja reliabiliteetin tarkastelu konfirmatoristen faktorimallien avulla
2013
Measuring pre-service teachers' attitudes towards inclusive education: Psychometric properties of the TAIS scale
2015
The Teachers’ Attitudes towards Inclusive Education (TAIS) scale was designed to measure pre-service teachers’ attitudes towards inclusion, as defined in the Salamanca Statement of UNESCO. The 10-item scale was developed using a sample of 185 final-year pre-service subject teachers. It was validated in four subsequent studies with various samples of teachers and pre-service teachers. The unidimensionality of the scale was established in all samples except the first-year students, and its validity was confirmed in psychometric analyses. The scale is suggested for use in intervention studies aiming to develop positive attitudes towards inclusion among teachers and pre-service teachers. peerRe…