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oai:www.ideals.illinois.edu:2142/105936 2023-07-11 col_2142_11614 col_2142_5131 com_2142_11613 com_2142_8903 com_2142_5130

Berenbaum, Howard Berenbaum, Howard Cohen, Dov Fairbairn, Catharine Fraley, R. Chris Hankin, Benjamin Huang, Alice B. 2019-11-26T20:59:46Z 2019-11-26T20:59:46Z 2021-11-27T10:15:26Z 2019-07-12 2019-08 Self-(in)security is an aspect of self-evaluation defined as the acceptance (or rejection) of one’s own weaknesses. My dissertation consists of three studies investigating self-insecurity as a potential transdiagnostic risk factor for psychopathology, especially internalizing psychopathology. Study 1 explored the link between self-insecurity and unpleasant repetitive thinking, an transdiagnostic process that appears to cause and perpetuate internalizing psychopathology. Specifically, I examined the link between-individuals (in a sample of 158 undergraduates) and within-individual (using daily diaries). Self-insecurity is significantly associated with repetitive thinking at both levels—above and beyond self-esteem and neuroticism/negative affect. Study 2 further investigated self-insecurity’s link with repetitive thinking by using longitudinal methods, and began to investigate self-insecurity as a potential risk factor for depression. A sample of 195 undergraduates, over-selected for depression history and depressive symptom severity, completed two laboratory sessions separated by approximately one month. Self-insecurity prospectively predicts increases in repetitive thinking. Additionally, self-insecurity is associated with lifetime MDD—above and beyond concurrent depression, and neuroticism or self-esteem. Moreover, self-insecurity prospectively predicts increases in MDD symptom severity, NA, and anhedonic depression. In contrast, depression does not prospectively predict changes in self-insecurity. In a sample of 280 undergraduates, Study 3 replicated Study 1’s finding that self-insecurity is associated with repetitive thinking at both the between-individuals level and the within-individual level. Moreover, Study 3 began to investigate proposed mediators of self-insecurity’s association with repetitive thinking, and found that the perceived self-evaluation relevance of threats, the perceived cost of threats, and discomfort with ambiguity each mediates self-insecurity’s link with repetitive thinking at both the between-individuals and the within-individual levels. Additionally, Study 3 replicated Study 2’s finding that self-insecurity is associated with anhedonic depression. Study 3 also began to investigate self-insecurity’s associations with subjective experience of stress and several alcohol variables. Although self-insecurity is not associated with whether participants drank or how much they drank (in standard drinks), self-insecurity is associated with the severity of alcohol problems—above and beyond extroversion. We recommend further investigation of self-insecurity as a possible transdiagnostic risk factor. Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2021-08-01 The student, Alice Huang, accepted the attached license on 2019-07-11 at 08:58. The student, Alice Huang, submitted this Dissertation for approval on 2019-07-11 at 09:16. This Dissertation was approved for publication on 2019-07-12 at 09:48. DSpace SAF Submission Ingestion Package generated from Vireo submission #14262 on 2019-11-26 at 14:03:56 Made available in DSpace on 2019-11-26T20:59:46Z (GMT). No. of bitstreams: 2 HUANG-DISSERTATION-2019.pdf: 1075962 bytes, checksum: 0c34a8358c70c7c1b661274bd8d2b977 (MD5) LICENSE.txt: 4208 bytes, checksum: e394473e58aa976787c6e4a0418c2f3c (MD5) Previous issue date: 2019-07-12 Embargo set by: Seth Robbins for item 113083 Lift date: 2021-11-26T20:59:54Z Reason: Author requested closed access (OA after 2yrs) in Vireo ETD system Limited Restriction Lifted for Item 113083 on 2021-11-27T10:15:26Z. application/pdf http://hdl.handle.net/2142/105936 en Copyright 2019 Alice Huang self-insecurity self-security self-evaluation self-esteem acceptance depression anxiety rumination worry unpleasant repetitive thinking perseverative negative thinking persistent negative thinking alcohol problems transdiagnostic risk factor daily diary clinical interview longitudinal prospective mediation The rejection of one’s own weaknesses and internalizing psychopathology: Exploring self-insecurity’s links with unpleasant repetitive thinking and depression text text Psychology Psychology University of Illinois at Urbana-Champaign Dissertation Ph.D.