Item Details

title

Fact or fiction? Investigating self-other agreement on self-reported posttraumatic growth through the lens of romantic partners

author

Nathan, Jamieson

abstract

This thesis examined the construct validity of the Stress-Related Growth Scale-Revised (SRGS-R; Boals & Schuler, 2018), a bidirectional measure designed to mitigate wording biases and demand characteristics inherent in traditional posttraumatic growth (PTG) assessments. Employing the largest dyadic sample in PTG corroboration research (N = 184 romantic couples), the study investigated self–other agreement on trait-level PTG and evaluated confidence as a moderator of this agreement using hierarchical regression analyses. Data was collected via online Qualtrics surveys administered through Prolific. Results indicated moderate trait-level agreement (r = .28, p < .001) between self-reports and informant ratings, suggesting that the SRGS-R may capture genuine PTG with greater accuracy than unidirectional measures reported in comparable studies (e.g., Blackie et al., 2015; Reynolds et al., 2022). Neither target nor informant confidence significantly moderated the self–informant relationship, and exploratory analyses of additional dispositional factors (e.g., intellectual humility, thoughtfulness) revealed no significant interaction effects. These findings provide preliminary evidence that a bidirectional assessment approach, combined with informant perspectives from intimate partners, may enhance the validity of PTG measurement. Implications for refining measurement tools and guiding future longitudinal research are discussed.

subject

Bidirectional Measurement

Confidence

Moderation

Posttraumatic Growth (PTG)

Self-Other Agreement

Stress-Related Growth Scale-Revised

contributor

Greene, Heath L. (advisor)

Sali, Anthony W. (committee member)

Boals, Adriel (committee member)

date

2025-06-24T08:36:37Z (accessioned)

2025-06-24T08:36:37Z (available)

2025 (issued)

degree

Psychology (discipline)

identifier

http://hdl.handle.net/10339/111040 (uri)

language

en (iso)

publisher

Wake Forest University

type

Thesis