Kyla A. Machell

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Experiential avoidance (EA), the tendency to avoid internal, unwanted thoughts and feelings, is hypothesized to be a risk factor for social anxiety. Existing studies of experiential avoidance rely on trait measures with minimal contextual consideration. In two studies, we examined the association between experiential avoidance and anxiety within real-world(More)
Experiential avoidance (EA) is a regulatory strategy characterised by efforts to control or avoid unpleasant thoughts, feelings and bodily sensations. Most studies of EA have used trait measures without considering the effects of EA on psychological functioning in naturalistic settings. To address this gap, we used daily diary methodology to examine the(More)
OBJECTIVE Iron plays a key role in brain function, and a deficiency of iron has been implicated in various cognitive, motor, and psychiatric disorders. Because of recent evidence that iron deficiency may be related to attention-deficit/hyperactivity disorder (ADHD) and other psychiatric disorders, the goal of this study was to compare the iron status of(More)
a r t i c l e i n f o Social anxiety impacts functional impairment in several life domains; in children, the most notable effect is a decline in academic performance. Socially anxious children report that communicating with peers and teachers, as well as public speaking are their biggest fears in academic settings. Prior research has shown that these(More)
a r t i c l e i n f o Individuals orient themselves in relationships using different goals and preoccupations, often conceptualized as four distinct attachment styles (Bartholomew & Horowitz, 1991). Individuals also orient themselves in the social world more broadly using different motivational preferences and styles. Self-discrepancy theory (Higgins, 1987)(More)
We examined how personality strengths prospectively predict reactions to negative life events. Participants were 797 community adults from 42 countries. At five points over the course of 1 year, participants completed a series of questionnaires measuring seven personality strengths (hope, grit, meaning in life, curiosity, gratitude, control beliefs, and use(More)
The present two-part study assesses how psychopathic traits affect individuals’ ability to process naturalistically elicited, dynamic emotional facial expressions. A new stimulus set of spontaneous, dynamic facial expressions was created by filming participants as they watched emotional video clips, and then validated using the program FaceReader. Faces(More)
Prior research has found that perceiving positive responses from others following self-disclosures enhances social bonds and plays a role in the maintenance of romantic relationships. We sought to extend this effect by exploring perceived responsiveness to good news in the context of initial social interactions with a stranger. In this study, unacquainted(More)
Three studies using samples of people in romantic relationships were conducted to create a new individual difference measure of partner strengths in couples. The 2 perceptions of partner strengths included (1) appreciation of their use and effectiveness and (2) recognition of costs associated with their use. Factor analyses supported 2-factors and we found(More)
The present study examined associations among anxiety symptoms, anxiety disorder diagnoses, perceptions of family support and conflict, and suicidal ideation (SI) in a clinical sample of psychiatrically hospitalized adolescents. Participants were 185 adolescents (72% female; 84% white, mean age=15.02years, SD=1.33) hospitalized on an acute psychiatric(More)