Search results for "factor analys"

Factor structure, internal consistency and construct validity of the Sheehan Disability Scale in a Spanish primary care sample

2010

Rationale, aims and objectives The Sheehan Disability Scale (SDS) is a three-item instrument that measures disability in three inter-related domains: work, family life/home responsibilities and social/leisure activities. The main objective of the present study was to examine the factor structure, reliability and construct validity of the SDS in a wide Spanish sample of primary care (PC) patients. Methods One phase cross-sectional survey.Atotal of 3815 patients, aged 18 years or older attending PC for a medical visit, were interviewed between October 2005 and March 2006. The interviews included the Structured Clinical Interview for DSM-IVAxis I Disorders for depressive and anxiety disorders,…

<p>Translation, validation, and cross-cultural adaptation of the Polish version of the pain sensitivity questionnaire</p>

2019

Introduction The purpose of this study was to provide a translation, cross-cultural adaptation, and validation of the Polish language version of the pain sensitivity questionnaire (PSQ). The process followed widely accepted guidelines. Methods The translated questionnaire underwent thorough psychometric testing. In total, the data of 144 subjects (mean age 52.53±13 years), who underwent evaluation for lower back pain, were included. Results The exploratory factor analysis revealed a two-factor structure, PSQ-moderate and PSQ-minor. The internal consistency was good (Cronbach's α was 0.96). There was a fair and significant correlation between the results of the PSQ and the coping strategy qu…

Listado de síntomas breve (short checklist of symptoms) in Argentinean adults: Psychometric study of its main clinical scales

2016

The main objective of this research was studying the psychometric properties of the Listado de síntomas breve (short checklist of symptoms; LSB-50) in a sample of 994 Argentinean adults (49.9% females; 50.1% males). Mean age was 40.66 years (standard deviation=17.01; Min=18; Max=89). This screening test has seven main clinical scales: hypersensitivity, obsessive-compulsive, anxiety, hostility, somatization, depression, and sleep disturbance. Pearson correlations indicated that all scales had positive and mostly moderate associations. The second order confirmatory factor analysis showed a good fit for a hierarchical model where all scales loaded in one major factor. Internal consistency by C…

The vaccinaTion & Hpv Knowledge (THinK) questionnaire: a reliability and validity study on a sample of women living in Sicily (southern-Italy)

2019

Objective The aim of this study was to introduce the VaccinaTion & Hpv Knowledge (THinK) questionnaire to assess knowledge about human papillomavirus (HPV) and attitude to HPV-vaccination. Its reliability and validity was demonstrated in a sample of women living in Sicily (southern Italy). Methods A cross-sectional survey was conducted on a sample of 220 women at the “Paolo Giaccone” University Hospital in Palermo (Sicily), aged 18–61. Data were analyzed through Cronbach’s alpha and exploratory factor analysis, followed by a structural equation model with measurement component. The two-level data structure was explicitly considered. Results Three dimensions were found: “knowledge of HP…

Validation of the Walking Behavior Questionnaire (WBQ): A tool for measuring risky and safe walking under a behavioral perspective

2020

Abstract Introduction Although daily walking implies several potential benefits for the health and well-being of people, and, besides the raise of more “walkable” cities, it is currently being promoted as an active transportation means that is rich in benefits for its users, road risks affecting pedestrians, together with their high vulnerability to suffer severe injuries as a consequence of traffic crashes, have turned into a relevant concern for both policymakers and public health practitioners. In this regard, risky and positive (proactively safe) behaviors have acquired a substantial relevance for the study and prevention of traffic causalities involving different road users, including …

Dimensionality and Measurement Invariance of the Italian Version of the EORTC QLQ-C30 in Postoperative Lung Cancer Patients

2019

Background: This study aims to validate and evaluate the psychometric properties and measurement invariance of the Italian version of the European Organization for Research and Treatment of Cancer (EORTC) Quality of Life Questionnaire-Core 30 (QLQ-C30), which is a measure of quality of life (QoL) for lung cancer patients after surgery. Methods: A total of 167 lung cancer patients completed the Italian version of the EORTC QLQ-C30 questionnaire at 30 days after they received a lobectomy. The factor structure of this scale was assessed by performing confirmatory factor analysis (CFA). Measurement invariance was evaluated by considering differential item functioning (DIF) due to age, gender, a…

Curiosity and exploration: A conceptual overview and structural modeling

2001

Many attempts have been made to measure curiosity or intrinsic motivation. However, there is no consensus on what curiosity is. In the present study, five previously constructed curiosity inventories were translated to Finnish and modified to be convenient for fifth-graders. The main purpose of the study was to clarify the concept of curiosity. Using conceptual analysis and the results of previous studies, it was possible to construct nine alternative conceptual models of curiosity. The corresponding statistical models were expected to account for the covariances among 15 subscales measuring curiosity-related exploratory behavior. However, before proceeding to the subscale level, the struct…

MOTIVATION AND MOTIVES - DRIVER AND REASON OF CONSUMER'S BUYING BEHAVIOR

2013

The purpose of the paper is to understand and measure consumer's motives as part of the complex mental structure which has as result a certain buying behavior. To achieve this goal, the authors structured the paper in two parts: the first part contains a literature review regarding the concepts of motivation and motives, while the second part tries to measure and explain several dimensions of buying motives by using a statistical analysis tool - exploratory factor analysis.

Multiple factor analysis: principal component analysis for multitable and multiblock data sets

2013

EMU and Trade Revisited: Long-Run Evidence Using Gravity Equations

2013

In this paper, we present evidence of the long-run effect of the euro on trade for the twelve initial EMU countries for the period 1967–2008 from a double perspective. First, we pool all the bilateral combinations of trade flows among the EMU countries in a panel cointegration gravity specification. Second, we estimate a gravity equation for each of the EMU members vis-a-vis the other eleven partners. We apply panel cointegration techniques based on factor models that account for cross-dependence and structural breaks. Whereas the joint gravity equation provides evidence on the aggregate effect of the euro on intra-European trade, by isolating the individual countries, we assess which of th…