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Title: The development of the "p-factor" in early childhood : examination of genetic and environmental indicators
Author: Barry, Melissa
ISNI:       0000 0004 7964 8212
Awarding Body: UCL (University College London)
Current Institution: University College London (University of London)
Date of Award: 2018
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This thesis is focused on furthering the current understanding of psychopathology in the very early stages of life. The first part of the thesis aims to address the gap in literature surrounding the efficacy of interventions for preschool anxiety. The first systematic review and meta-analysis of the literature was conducted. A range of interventions were identified and considered alongside potential bias identified from quality assessment. The meta-analysis supported the use of psychological interventions as treatment for preschool anxiety, although there was significant heterogeneity in studies. Limitations as a result of the number of included studies are discussed, as well as recommendations for future research. The empirical paper, which forms the second part of the thesis, moves away from traditional diagnostic approaches which form the basis for previous intervention research, to utilise a model that reconceptualises psychopathology into a general psychopathology dimension ("p-factor") and additional specific dimensions. This study is the first to utilise an adoptive cohort study to examine the development of the "p-factor" over time, and from the earliest age to date. Specifically it examines the strength consistency of the p-factor over development and the contributions of genetic and environmental risk indicators at each time point. Finally, the third part of the thesis contains a critical appraisal of the research process. It provides a reflective account of the relevance of psychologists in addressing issues relating to the conceptualisation of psychopathology and the significance of findings from the field of genetics to clinical psychologists.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available