Philip Jefferies

Dr. Philip Jefferies

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Research Focus & Metrics

Academic Career Length

15Years (2012-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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17 September 2020 in PLOS ONE
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PJPhilip Jefferies
Philip Jefferies
MUMichael Ungar
Michael Ungar
Social anxiety is a fast-growing phenomenon which is thought to disproportionately affect young people. In this study, we explore the prevalence of social anxiety around the world using a self-report survey of 6,825 individuals (male = 3,342, female = 3,428, other = 55), aged 16–29 years (M = 22.84, SD = 3.97), from seven countries selected for their cultural and economic diversity: Brazil, China, Indonesia, Russia, Thailand, US, and Vietnam. The respondents completed the Social Interaction Anxiety Scale (SIAS). The global prevalence of social anxiety was found to be significantly higher than previously reported, with more than 1 in 3 (36%) respondents meeting the threshold criteria for having Social Anxiety Disorder (SAD). Prevalence and severity of social anxiety symptoms did not differ between sexes but varied as a function of age, country, work status, level of education, and whether an individual lived in an urban or rural location. Additionally, 1 in 6 (18%) perceived themselves as not having social anxiety, yet still met or exceeded the threshold for SAD. The data indicate that social anxiety is a concern for young adults around the world, many of whom do not recognise the difficulties they may experience. A large number of young people may be experiencing substantial disruptions in functioning and well-being which may be ameliorable with appropriate education and intervention.

29 October 2018 in Journal of Evidence-Based Social Work
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PJPhilip Jefferies
Philip Jefferies
LMLisa McGarrigle
Lisa McGarrigle
MUMichael Ungar
Michael Ungar
The Child and Youth Resilience Measure (CYRM) is one of the most popular measures of resilience. In this paper, we investigate the CYRM using Rasch analysis to explore and improve its psychometric properties, leading to a more robust measure of resilience.Cross-sectional data were obtained from a questionnaire administered to n = 408 individuals in Canada aged 11-19 who were participating in the Pathways to Resilience study. Rasch analysis was applied to these data, resulting in the production of a 17-item, 2-subscale CYRM-R, consisting of intra/interpersonal and caregiver resilience subscales. The subscales demonstrated good fit to the Rasch model by satisfying requirements of unidimensionality, good fit statistics and internal reliability, and a lack of item bias and problematic local dependency. The person separation indices also indicated that the subscales had good ability to differentiate between individuals of varying levels of resilience. In sum, the CYRM-R is a 2-subscale, 17-item Rasch-validated measure of resilience with robust psychometric properties. This revised measure is recommended for researchers and practitioners who are interested in measuring resilience across diverse cultures and contexts.

6 November 2019 in International Journal of School & Educational Psychology
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ATAkwasi Twum-Antwi
Akwasi Twum-Antwi
PJPhilip Jefferies
Philip Jefferies
MUMichael Ungar
Michael Ungar
A multisystemic model of resilience suggests that the capacity of one system to cope with atypical stress improves the capacity of co-occurring systems. In this paper, we review research demonstrating this relationship, where the more resilient caregivers are, the more likely children are to experience the promotive and protective factors they require for optimal growth and development in both home and school settings. We examine research from the last two decades on school- or family-based resilience promoting interventions, and advocate for a new perspective which adopts a multisystemic view of resilience in order to redirect the focus of the international research agenda, which places emphasis on children rather than systems. The implications of this multisystemic approach to resilience are discussed in relation to the design of programs that promote the well-being of parents and teachers in ways that contribute to more supportive and stable home and school environments for children.

19 November 2019 in Frontiers in Public Health
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PJPhilip Jefferies
Philip Jefferies
MUMichael Ungar
Michael Ungar
PAPatrice Aubertin
Patrice Aubertin
DKDean Kriellaars
Dean Kriellaars
Background: There is growing interest in the relationship between physical and psychosocial factors related to resilience to better understand the antecedents of health and successful adaptation to challenges in and out of school, and across the lifespan. To further this understanding, a trans-disciplinary approach was used to investigate the association between the multidimensional constructs of physical literacy and resilience in children at a key stage in their development. Methods: Cross-sectional data were collected from 227 school children aged 9-12 years old from five schools in Winnipeg, Manitoba, Canada. Resilience was measured using the Child and Youth Resilience Measure, and physical literacy through the Physical Literacy Assessment for Youth tools. Data were provided by self-report, surrogate assessors of the child (physical education teachers and parents), and trained assessors for movement skills. These data were analyzed using correlation and logistic regression. Results: Resilience was significantly correlated with numerous indicators of physical literacy, including movement capacity, confidence, and competence, environmental engagement, and overall perceptions of physical literacy. Regressions indicated that resilience could be predicted by movement confidence and competence, environmental engagement, and overall physical literacy. Conclusions: The findings of this study, using a constellation of sources, provide foundational evidence for the link between resilience and physical literacy among children, encouraging the importance of physical literacy development in schools. Longitudinal studies are required to further examine this relationship and how these previously unrelated fields may work together for a richer understanding of the interplay between the physical and psychological determinants of well-being.

1 March 2021 in Journal of Adolescent Health
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JHJan Hoeltge
Jan Hoeltge
LTLinda Theron
Linda Theron
RCRichard G. Cowden
Richard G. Cowden
KGKaymarlin govender
Kaymarlin govender
SMSally I. Maximo
Sally I. Maximo
MUMichael Ungar
Michael Ungar

1 September 2012 in Prosthetics and Orthotics International
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Journal Article
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PJPhilip Jefferies
Philip Jefferies
PGPamela Gallagher
Pamela Gallagher
SDSimon Dunne
Simon Dunne
There is a lack of knowledge of the psychosocial wellbeing and attributes of Paralympic athletes. Such knowledge may reveal what contributes to exceptional performance. To systematically review the literature on psychosocial wellbeing and attributes of the Paralympic athlete. Systematic literature review. Five key databases that index psychosocial literature were searched: CINAHL, ISI Web of Science, MEDLINE, PsycINFO and SportsDiscus. Sixteen papers were found that met the inclusion criteria. The studies were characterised by heterogeneity of design, sample characteristics, outcome assessment and outcomes examined. The emerging thematic areas are 1) participation, motivations and goals; 2) mental imagery; 3) stress and coping; 4) personality; 5) attitudes towards other disabled-bodied athlete groups; 6) knowledge and attitudes towards doping; and 7) transitions to retirement. Relative to the biomechanical aspects of the Paralympian, the psychosocial literature remains limited and diffuse. Nonetheless an understanding of the psychosocial profile of these athletes complements the extant physiological and technological knowledge in enabling a holistic view of what contributes to the successful Paralympic athlete and may facilitate the team working to optimize performance and wellbeing in these high-performing individuals. An understanding of the psychological profile of the Paralympic athlete complements the extant physiological and technological knowledge in enabling a holistic view of what contributes to the successful athlete and may facilitate optimizing performance and wellbeing.