9 results on '"Vitoratou, Silia"'
Search Results
2. Exploring the Neurocognitive Correlates of Challenging Behaviours in Young People with Autism Spectrum Disorder
- Author
-
Carter Leno, Virginia, Vitoratou, Silia, Kent, Rachel, Charman, Tony, Chandler, Susie, Jones, Catherine RG, Happé, Francesca, Baird, Gillian, Pickles, Andrew, and Simonoff, Emily
- Abstract
Many young people with autism spectrum disorder display 'challenging behaviours', characterised by externalising behaviour and self-injurious behaviours. These behaviours can have a negative impact on a young person's well-being, family environment and educational achievement. However, the development of effective interventions requires greater knowledge of autism spectrum disorder--specific models of challenging behaviours. Autism spectrum disorder populations are found to demonstrate impairments in different cognitive domains, namely social domains, such as theory of mind and emotion recognition, but also non-social domains such as executive functioning and sensory or perceptual processing. Parent-rated self-injurious behaviour and externalising behaviours, and neurocognitive performance were assessed in a population-derived sample of 100 adolescents with autism spectrum disorder. Structural equation modelling was used to estimate associations between cognitive domains (theory of mind, emotion recognition, executive functioning and perceptual processing) and self-injurious behaviour and externalising behaviours. Poorer theory of mind was associated with increased self-injurious behaviour, whereas poorer perceptual processing was associated with increased externalising behaviours. These associations remained when controlling for language ability. This is the first analysis to examine how a wide range of neurocognitive domains relate to challenging behaviours and suggests specific domains that may be important targets in the development of interventions in adolescents with autism spectrum disorder.
- Published
- 2019
- Full Text
- View/download PDF
3. Adaptation and Validation of the Child Eating Disorder Examination Questionnaire (ChEDE-Q) for Use in English among Adolescents in Urban India.
- Author
-
Ahuja, Latika, Diedrichs, Phillippa C., Garbett, Kirsty M., Chaudhry, Anshula, Hasan, Farheen, Uglik-Marucha, Nora, Vitoratou, Silia, Dhillon, Megha, Shroff, Hemal, and Lewis-Smith, Helena
- Abstract
Eating pathology is increasingly common among Indian adolescents. However, brief validated measures of disordered eating in Indian contexts are scarce. This study adapted and validated a culturally appropriate English language version of the Child Eating Disorder Examination Questionnaire (ChEDE-Q) among 385 adolescents (mean age = 13.42 years; 47.3% girls) in urban India. Confirmatory factor analysis indicated that a two-factor eight-item solution had an acceptable fit to the data across gender: an 'Eating Concerns and Restraint' subscale and a 'Weight and Shape Concerns' subscale. Further, the questionnaire can be utilised as both a unidimensional and multidimensional tool. This allows for the computation of a total score on the primary factor of 'Child Eating Pathology', as well as the two subscales. Internal consistency of the 'Weight and Shape Concerns' subscale (α = 0.825) and 'Eating Concerns and Restraint' subscale (α = 0.649) was satisfactory. Concurrent validity was established through medium significant correlations with measures of body image and broader mental health. The results support the use of the ChEDE-Q for assessing disordered eating among urban Indian adolescents, thus providing the research community and practitioners with a measure to investigate the nature and scale of disordered eating among adolescents in India. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
4. The Body Esteem Scale for Adults and Adolescents: Translation, adaptation and psychometric validation among Brazilian adolescents.
- Author
-
Smith, Harriet G., Garbett, Kirsty M., Matheson, Emily L., Amaral, Ana C.S., Meireles, Juliana F.F., Almeida, Mireille C., Hayes, Chloe, Vitoratou, Silia, and Diedrichs, Phillippa C.
- Abstract
A lack of rigorously validated body image measures for use among adolescents is hampering research in Brazil. This study aimed to validate a Brazilian Portuguese version of the Body Esteem Scale for Adults and Adolescents (BESAA; Mendelson et al., 2001). The BESAA was forward and back translated from English into Brazilian Portuguese before examining its factor structure, reliability, and validity among 475 adolescents (50.3% girls) aged 13 – 18 years (M age = 15.35) from various regions across Brazil. Exploratory factor analysis identified an 18-item three-factor solution, with Appearance-Positive, Appearance-Negative, and Weight subscales. The removal of five problematic items led to a psychometrically robust model, invariant across gender and age, and was verified using confirmatory factor analysis. Test re-test reliability and internal consistency were good-to-excellent across all three factors (Cronbach's a =0.85,.88, and.89). Concurrent validity was established through significant correlations with body dissatisfaction. Convergent validity was demonstrated via significant correlations with positive and negative affect. This Brazilian Portuguese version of the BESAA is a valid, reliable, and psychometrically robust measure of body image suitable for administration among adolescents in Brazil. • The Body Esteem Scale was rigorously translated into Brazilian Portuguese. • The scale underwent validation among Brazilian adolescents. • EFA and CFA resulted in a 18-item, three-factor structure. • Concurrent and convergent validity was demonstrated. • The adapted Body Esteem Scale showed good internal consistency. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
5. Adaptation and validation of the Eating Disorder Examination-Questionnaire in English among urban Indian adolescents
- Author
-
Lewis-Smith, Helena, Garbett, Kirsty M., Chaudhry, Anshula, Uglik-Marucha, Nora, Vitoratou, Silia, Dhillon, Megha, Shroff, Hemal, and Diedrichs, Phillippa C.
- Subjects
psychometrics ,validation ,reliability ,Asian ,clinical measures ,eating pathology ,India ,Formerly Health & Social Sciences ,adolescents ,eating disorders ,disordered eating ,Eating Disorder Examination Questionnaire - Abstract
Objective: Eating pathology is a salient issue in India, with clinical features reported among adults and adolescents. However, there are currently no validated measures of disordered eating in the Indian context. The present study therefore aimed to validate a culturally appropriate English language version of the Eating Disorder Examination Questionnaire (EDE-Q), a widely used measure, among adolescents in India. Method: We adapted and examined the factor structure, reliability, and construct validity of the EDE-Q among an urban sample of 1,413 Indian adolescents (mean age = 13 years; 45% girls). Results: In contrast to the original four-factor model, exploratory factor analysis identified a two-factor solution for girls and boys, which was verified by confirmatory factor analysis; a “Preoccupation and Control” subscale and a “Weight and Shape Concerns” subscale. The total scale comprised 15 items for girls and 18 items for boys. Test–retest reliability and internal consistency were satisfactory for the girls' and boys' scales (Cronbach's α =.91 for both) and their comprising subscales (αs ≥.80). Concurrent validity was established through medium-high significant correlations with measures of body image and internalization of appearance ideals. Combining items common to both versions of the scale led to a psychometrically acceptable model which was largely invariant across both genders, thus facilitating gendered comparison. Discussion: Findings indicate the reliability and validity of the EDE-Q among English-speaking urban Indian adolescents. This will facilitate further research examining the prevalence and nature of eating pathology among adolescents in India.
- Published
- 2021
6. Cultural adaptation and validation of the Body Esteem Scale for Adults and Adolescents for use in English among adolescents in urban India.
- Author
-
Garbett, Kirsty M., Lewis-Smith, Helena, Chaudhry, Anshula, Uglik-Marucha, Nora, Vitoratou, Silia, Shroff, Hemal, Dhillon, Megha, and Diedrichs, Phillippa C.
- Abstract
• Body Esteem Scale for Adults and Adolescents was adapted for adolescents in India. • EFA and CFA resulted in 15- and 7- item scales, for girls and boys, respectively. • A Weight subscale was found for girls, but not for boys. • A 7-item scale for use with both genders demonstrated good model fit. • The adapted BESAA showed good internal consistency and convergent validity. Body image research is growing in India; however, there are no psychometrically valid measures to assess body image concerns among an Indian population. In this study, the Body Esteem Scale for Adults and Adolescents (BESAA) underwent adaptation and validation among urban Indian adolescents in English. Cultural adaptations were made in consultation with body image experts and acceptability interviews with adolescents in India. 1462 adolescents living in Northern India completed the adapted BESAA and measures to assess construct validity. For girls, a 15-item three-factor model provided the best fit to our data, using exploratory factor analysis, with 'Appearance-Negative', 'Appearance-Positive', and 'Weight' subscales. For boys, a 7-item two-factor model provided best fit, with 'Appearance-Negative' and 'Appearance-Positive' subscales. Models were confirmed via confirmatory factor analysis. The scales demonstrated good internal consistency and satisfactory test-retest reliability. Construct, convergent validity was supported for girls and boys through significant correlations with figure rating scales and disordered eating. Further analyses using common items across the female and male scales, produced a psychometrically sound scale that can be used comparatively across genders. This study presents a culturally adapted, shortened BESAA as a valid and reliable measure to assess body image concerns in English among urban Indian adolescents. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
7. Translation and validation of the Body Esteem Scale in Adults and Adolescents among Indonesian adolescents.
- Author
-
Garbett, Kirsty M., Craddock, Nadia, Haywood, Sharon, Hayes, Chloe, Nasution, Kholisah, Saraswati, L. Ayu, Medise, Bernie E., Vitoratou, Silia, and Diedrichs, Phillippa C.
- Abstract
There is a need for a psychometrically robust body image measure to advance body image scholarship among Indonesian adolescents. This study aimed to validate a Bahasa Indonesia version of the Body Esteem Scale for Adults and Adolescents (BESAA). The measure was forward and back translated from English into Bahasa Indonesia (i.e., primary Indonesian language) and was assessed for comprehension and cultural appropriateness using cognitive interviews and expert reviews. The factor structure, reliability, and validity of the measure was tested with adolescents aged 11–17 years from two districts in Indonesia (N = 650; 51.5 % girls). Exploratory factor analysis identified a suitable 17-item three-factor solution for the BESAA, with Appearance Positive, Appearance Negative, and Weight subscales. This model was confirmed via confirmatory factor analysis and found to be largely invariant across gender and age. Test re-test reliability and internal consistency of the subscales were acceptable. The Bahasa Indonesia version of the BESAA is a psychometrically robust measure suitable for use among Indonesian adolescents. Reasons as to why the factor structure of the BESAA differentiates across cultural contexts are discussed. • Body Esteem Scale for Adults and Adolescents was translated into Bahasa Indonesia. • The translated scale was validated using EFA and CFA among Indonesian adolescents. • A 17-item, three-factor solution was identified. • The subscales were labelled Appearance Positive, Appearance Negative, and Weight. • The measure showed acceptable internal consistency and test-retest reliability. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
8. Adaptation and validation of the Body Image Life Disengagement Questionnaire (BILD-Q) for use in english among adolescents in urban India.
- Author
-
Hasan, Farheen, Garbett, Kirsty M., Diedrichs, Phillippa C., Chaudhry, Anshula, Ahuja, Latika, Uglik-Marucha, Eleanora, Vitoratou, Silia, Dhillon, Megha, Shroff, Hemal, and Lewis-Smith, Helena
- Abstract
Body image concerns are a global issue among adolescents, including in India. These concerns can prevent adolescents from engaging in everyday life activities, impeding social and academic development. However, at present, there are no psychometrically valid measures to assess such impact in the Indian context. This study culturally adapted and validated the Body Image Life Disengagement Questionnaire (BILD-Q) for use in English among adolescents in urban India. A total of 1427 adolescents completed an adapted version of the BILD-Q along with additional measures pertaining to body image. Exploratory factor analysis identified one dimension of body image life disengagement, which provided the best fit. The 9-item one-factor model was further supported by confirmatory factor analysis. The scale demonstrated good internal consistency and test re-test reliability. Further analysis demonstrated that the scale can be used to compare scores between boys and girls without measurement bias. This study presents a culturally adapted version of the BILD-Q, which can be used as a valid and reliable measure to assess the impact of body image concerns on life disengagement among English-speaking adolescents in urban India. • The Body Image Life Disengagement Questionnaire (BILD-Q) was validated with Indian Adolescents. • EFA and CFA revealed a 9-item version that can be used comparatively across genders. • Evidence of satisfactory reliability (internal consistency and test-retest). • The BILD-Q can assess impact of body image concerns among Indian adolescents. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
9. Adaptation and validation of the Internalisation-General subscale of the Sociocultural Attitudes Towards Appearance Questionnaire (SATAQ-3) in English among urban Indian adolescents.
- Author
-
Lewis-Smith, Helena, Garbett, Kirsty, Chaudhry, Anshula, Uglik-Marucha, Nora, Vitoratou, Silia, Dhillon, Megha, Shroff, Hemal, and Diedrichs, Phillippa C.
- Abstract
• The SATAQ-3: Internalisation-General subscale was validated with Indian adolescents. • EFA and CFA resulted in a 6- and 5- item version, for girls and boys respectively. • Additional common-items version is gender-invariant and can be used to compare. • There was evidence of satisfactory reliability (internal consistency and test re-test). • There was evidence of satisfactory construct (concurrent) validity. Few studies have validated body image related measures in Asian countries, including in India, thus stunting research progress. To provide a robust method of assessing internalisation of cultural appearance ideals, the purpose of this study was to validate a culturally appropriate English version of the Internalisation-General subscale from the Sociocultural Attitudes Towards Attitudes Questionnaire-3 among a school sample of 1,432 urban Indian adolescents (Mage = 12.9 years; 44 % girls). Exploratory factor analyses revealed a one-factor solution for both girls and boys. Analyses indicated a six-item scale for girls and a four-item scale for boys; both of which were verified by confirmatory factor analysis. Cronbach's alpha was high for both female (.88) and male scales (.87), and convergent validity was confirmed via significant correlations with measures of body esteem and disordered eating. Using the items which were common in both the male and female versions of the scale, confirmatory factor analysis supported a psychometrically sound model that was gender invariant, and thus can be used to assess and compare both genders. Overall, results support the reliability and validity of the Internalisation-General subscale among English-speaking urban Indian adolescents. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.