This dissertation develops and tests a new integrative model, the depersonalization-projection model, which proposes that uncertainty reduction is a key motivation underlying depersonalization and projection processes in groups. The proposed model describes the conditions under which people in group contexts define themselves in terms of group attributes (depersonalization) and/or define the group in terms of attributes of themselves (projection). The locus of uncertainty (about the group, about self, about self-prototypicality/self-group fit) determines the directional flow of definitional information, as well as (a) effectiveness of uncertainty reduction, (b) strength of inference, (c) strength of identification, (d) information processing time, and (e) perception of relative self-prototypicality and interchangeability. The proposed model is compared to previous integrative models. A 2 locus-of-uncertainty (group vs. self) by 3 self-prototypicality (high vs. low vs. unknown) between-subjects experiment (N = 257) tested two core hypotheses. (H1) Self locus-of-uncertainty yields (a) greater uncertainty reduction, (b) stronger inference, (c) stronger identification, (d) shorter information processing time, and (e) lower relative self-prototypicality (higher interchangeability) than Group locus-ofuncertainty. (H2) These effects of locus-of-uncertainty are moderated by self-prototypicality. When the locus-of-uncertainty is the group, high self-prototypicality yields (a) greater uncertainty reduction, (b) stronger inference, (c) stronger identification, (d) shorter information processing time, and (e) higher relative self-prototypicality (low interchangeability) than low or unknown self-prototypicality; when the locus-of-uncertainty is self, self-prototypicality will have no effect. Results revealed that as predicted under H1a and H1b, Self locus-of-uncertainty yielded greater uncertainty reduction and stronger inference than Group locus-of-uncertainty. As predicted under H2c, results revealed the significant two-way interaction on identification. However, there were no significant effects on reaction time and the perception of relative selfprototypicality/interchangeability. The closing discussion explores implications of this research for newcomer innovation, intragroup communication, innovative leadership, and faction formation.
","abstract_html":"<p>This dissertation develops and tests a new integrative model, the depersonalization-projection model, which proposes that uncertainty reduction is a key motivation underlying depersonalization and projection processes in groups. The proposed model describes the conditions under which people in group contexts define themselves in terms of group attributes (depersonalization) and/or define the group in terms of attributes of themselves (projection). The locus of uncertainty (about the group, about self, about self-prototypicality/self-group fit) determines the directional flow of definitional information, as well as (a) effectiveness of uncertainty reduction, (b) strength of inference, (c) strength of identification, (d) information processing time, and (e) perception of relative self-prototypicality and interchangeability. The proposed model is compared to previous integrative models. A 2 locus-of-uncertainty (group vs. self) by 3 self-prototypicality (high vs. low vs. unknown) between-subjects experiment (N = 257) tested two core hypotheses. (H1) Self locus-of-uncertainty yields (a) greater uncertainty reduction, (b) stronger inference, (c) stronger identification, (d) shorter information processing time, and (e) lower relative self-prototypicality (higher interchangeability) than Group locus-ofuncertainty. (H2) These effects of locus-of-uncertainty are moderated by self-prototypicality. When the locus-of-uncertainty is the group, high self-prototypicality yields (a) greater uncertainty reduction, (b) stronger inference, (c) stronger identification, (d) shorter information processing time, and (e) higher relative self-prototypicality (low interchangeability) than low or unknown self-prototypicality; when the locus-of-uncertainty is self, self-prototypicality will have no effect. Results revealed that as predicted under H1a and H1b, Self locus-of-uncertainty yielded greater uncertainty reduction and stronger inference than Group locus-of-uncertainty. As predicted under H2c, results revealed the significant two-way interaction on identification. However, there were no significant effects on reaction time and the perception of relative selfprototypicality/interchangeability. The closing discussion explores implications of this research for newcomer innovation, intragroup communication, innovative leadership, and faction formation.</p>","abstract_has_math":false,"creators":["Jung, Jiin"],"institution":null,"degree_name":"Psychology, PhD","degree_level":"Open Access Dissertation","degree_discipline":"School of Social Science, Politics, and Evaluation","degree_department":null,"school":null,"contributors":["Jason Siegel","William D. Crano","Richard J. Crisp"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2019,"date_issued":"2019-01-01T08:00:00Z","date_published":"2019-01-01T08:00:00Z","updated_at":"2026-07-24T01:39:59Z","subjects":["depersonalization","projection","social identity","social inference","uncertainty reduction","Social Psychology"],"languages":[],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://scholarship.claremont.edu/cgu_etd/339","outbound_label":"Repository record","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Jason Siegel","William D. Crano","Richard J. Crisp"]},{"key":"dc:creator","label":"Author","values":["Jung, Jiin"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.available","label":"Dc Date Available","values":["2022-05-05T07:00:00Z"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["School of Social Science, Politics, and Evaluation"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Open Access Dissertation"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Psychology, PhD"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["depersonalization","projection","social identity","social inference","uncertainty reduction","Social Psychology"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://scholarship.claremont.edu/cgu_etd/339"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["This dissertation develops and tests a new integrative model, the depersonalization-projection model, which proposes that uncertainty reduction is a key motivation underlying depersonalization and projection processes in groups. The proposed model describes the conditions under which people in group contexts define themselves in terms of group attributes (depersonalization) and/or define the group in terms of attributes of themselves (projection). The locus of uncertainty (about the group, about self, about self-prototypicality/self-group fit) determines the directional flow of definitional information, as well as (a) effectiveness of uncertainty reduction, (b) strength of inference, (c) strength of identification, (d) information processing time, and (e) perception of relative self-prototypicality and interchangeability. The proposed model is compared to previous integrative models. A 2 locus-of-uncertainty (group vs. self) by 3 self-prototypicality (high vs. low vs. unknown) between-subjects experiment (N = 257) tested two core hypotheses. (H1) Self locus-of-uncertainty yields (a) greater uncertainty reduction, (b) stronger inference, (c) stronger identification, (d) shorter information processing time, and (e) lower relative self-prototypicality (higher interchangeability) than Group locus-ofuncertainty. (H2) These effects of locus-of-uncertainty are moderated by self-prototypicality. When the locus-of-uncertainty is the group, high self-prototypicality yields (a) greater uncertainty reduction, (b) stronger inference, (c) stronger identification, (d) shorter information processing time, and (e) higher relative self-prototypicality (low interchangeability) than low or unknown self-prototypicality; when the locus-of-uncertainty is self, self-prototypicality will have no effect. Results revealed that as predicted under H1a and H1b, Self locus-of-uncertainty yielded greater uncertainty reduction and stronger inference than Group locus-of-uncertainty. As predicted under H2c, results revealed the significant two-way interaction on identification. However, there were no significant effects on reaction time and the perception of relative selfprototypicality/interchangeability. The closing discussion explores implications of this research for newcomer innovation, intragroup communication, innovative leadership, and faction formation.
"]},{"key":"dc:title","label":"Title","values":["Depersonalization and Projection in Groups: Two Paths to Uncertainty Reduction"]}]}],"canonical_facts":{"dc:contributor":["Jason Siegel","William D. Crano","Richard J. Crisp"],"dc:creator":["Jung, Jiin"],"dc:date.available":["2022-05-05T07:00:00Z"],"dc:description.abstract":["This dissertation develops and tests a new integrative model, the depersonalization-projection model, which proposes that uncertainty reduction is a key motivation underlying depersonalization and projection processes in groups. The proposed model describes the conditions under which people in group contexts define themselves in terms of group attributes (depersonalization) and/or define the group in terms of attributes of themselves (projection). The locus of uncertainty (about the group, about self, about self-prototypicality/self-group fit) determines the directional flow of definitional information, as well as (a) effectiveness of uncertainty reduction, (b) strength of inference, (c) strength of identification, (d) information processing time, and (e) perception of relative self-prototypicality and interchangeability. The proposed model is compared to previous integrative models. A 2 locus-of-uncertainty (group vs. self) by 3 self-prototypicality (high vs. low vs. unknown) between-subjects experiment (N = 257) tested two core hypotheses. (H1) Self locus-of-uncertainty yields (a) greater uncertainty reduction, (b) stronger inference, (c) stronger identification, (d) shorter information processing time, and (e) lower relative self-prototypicality (higher interchangeability) than Group locus-ofuncertainty. (H2) These effects of locus-of-uncertainty are moderated by self-prototypicality. When the locus-of-uncertainty is the group, high self-prototypicality yields (a) greater uncertainty reduction, (b) stronger inference, (c) stronger identification, (d) shorter information processing time, and (e) higher relative self-prototypicality (low interchangeability) than low or unknown self-prototypicality; when the locus-of-uncertainty is self, self-prototypicality will have no effect. Results revealed that as predicted under H1a and H1b, Self locus-of-uncertainty yielded greater uncertainty reduction and stronger inference than Group locus-of-uncertainty. As predicted under H2c, results revealed the significant two-way interaction on identification. However, there were no significant effects on reaction time and the perception of relative selfprototypicality/interchangeability. The closing discussion explores implications of this research for newcomer innovation, intragroup communication, innovative leadership, and faction formation.
"],"dc:identifier":["https://scholarship.claremont.edu/cgu_etd/339"],"dc:subject":["depersonalization","projection","social identity","social inference","uncertainty reduction","Social Psychology"],"dc:title":["Depersonalization and Projection in Groups: Two Paths to Uncertainty Reduction"],"thesis:degree_discipline":["School of Social Science, Politics, and Evaluation"],"thesis:degree_level":["Open Access Dissertation"],"thesis:degree_name":["Psychology, PhD"]},"updated_at":"2026-07-24T01:39:59Z"}