Social and Behavioral Sciences Commons^™

The Developmental Importance Of Napping In Preschool Children, Adam T. Newton

Electronic Thesis and Dissertation Repository

Most children cease napping between 2- and 5-years-old. Little is known about the predictors or outcomes related to this cessation, or the interrelation of different components of nap behavior. Four empirical studies were conducted to investigate the developmental importance of napping among preschool children.

Studies 1 and 2 used a large, longitudinal sample of Canadian children to investigate the predictors (Study 1) and outcomes (Study 2) related to early nap cessation. Early nap cessation was defined as stopping daytime sleep before three years old. In Study 1, parents reported on their own, child, and family functioning at two timepoints (0-1 …

The Initial Development, Factor Structure, And Psychometric Validation Of The Impostor Phenomenon Assessment (Ipa): A Novel Assessment Of Impostor Phenomenon, Deanna L. Walker

Electronic Thesis and Dissertation Repository

Despite growing attention surrounding impostor phenomenon (also known as “imposter syndrome”), recent reviews have suggested that current measures may be inadequate in capturing the complex and multifaceted nature of this construct (i.e., thoughts, feelings, and behaviours). The objective of my dissertation research program was to clarify the theoretical conceptualization of impostor phenomenon based on experiences in an achievement-oriented setting, and to develop a novel and psychometrically valid method of measuring this construct. I began by conducting an extensive review of the literature and developing an item pool for a novel impostor phenomenon assessment. I then conducted exploratory factor …

Finding Meaning In Life, Pedro Baeta

Undergraduate Student Research Internships Conference

This poster describes a review of the Meaning in Life psychological research. The project aimed to find current issues with the field and to provide new directions for it, along with a research proposal to be done in the fall.

Motor Learning By Observing The Movements Of A Computer-Animated, Human-Like Actor And A Non-Limb Observational Video, Mudia Iyayi

Undergraduate Student Research Internships Conference

Our project is looking at the phenomenon of observational motor learning using a two-joint robotic manipulandum (robotic arm). When someone learns a new motor skill (i.e. throwing a football to a wide receiver) the brain must make and map an internal model of the forces required for that movement. The plasticity of the brain in constructing these representations is termed “motor learning” and can occur through physical practice or—for the purposes of our investigation—observation. Previous studies have used videos of human actors learning new skills to drive motor learning in the observer, however, it is not known what components of …

Early Childhood Impulsivity And Parenting Predict Trajectories Of Externalizing Psychopathology, Emma Stewart

Electronic Thesis and Dissertation Repository

Parenting is a consistent predictor of child externalizing symptoms; however, the role of caregiving variability (i.e., variation in a caregiver’s parenting behaviour) is poorly understood. We examined whether characteristic parenting style and parenting variability predicted externalizing symptoms in 409 children (M_age = 3.43 at baseline, 208 girls). We assessed parent positive affectivity (PPA), hostility, and parenting structure at child age three using three behavioural tasks designed to vary in context, examining variability by modeling a latent difference score reflecting the range for each dimension. We assessed children’s symptoms at ages three, five, eight, and 11. Lower hostility predicted fewer …

The Impact Of An Online Self-Compassion Intervention On Thwarted Belongingness And Perceived Burdensomeness, Genevieve M. Bianchini

Electronic Thesis and Dissertation Repository

Interventions that target thwarted belongingness (TB) and perceived burdensomeness (PB) may reduce suicidal thoughts and behaviours (Joiner, 2005). Self-compassion describes being open and kind towards oneself (Neff, 2003a) and is negatively associated with TB, PB, and suicidality. The current research examined the impact of a brief, virtual, self-compassion intervention on TB and PB in a young adult sample. Study 1 included an open trial to examine initial effectiveness and acceptability of the intervention. Self-compassion significantly increased over time; however, there were no changes in TB or PB. Study 2 included a randomized controlled trial comparing two control conditions to the …

Characterizing And Predicting Canadian Adolescents’ Internalizing Symptoms In The First Year Of The Covid-19 Pandemic, Haley Elizabeth Green

Electronic Thesis and Dissertation Repository

Most studies of adolescents’ internalizing symptoms during the COVID-19 pandemic have included few data waves, limiting long-term conclusions about adolescents’ mental health during the pandemic. Collecting only a few waves of data precludes examination of intraindividual symptom variability, which may have implications for adjustment beyond mean symptoms. We characterized mean n = 192 adolescents’ internalizing symptoms from March 2020-April 2021 and used mixed effect location scale models to examine established risk factors as predictors of mean trends and intraindividual variability in adolescents’ internalizing symptoms. Adolescents’ symptoms were relatively stable and low over the first year of the pandemic; severity peaked …

Interpersonal Problems And Suicidal Ideation In Daily Life: Examining The Moderating Role Of Social Problem-Solving, Brianna M. Meddaoui

Electronic Thesis and Dissertation Repository

Borderline personality disorder (BPD) is associated with significant impairment in interpersonal functioning and risk of suicidal ideation (SI). One mechanism underlying interpersonal problems in BPD is deficits in social problem-solving. Using ecological momentary assessment, this study investigated how acute interpersonal problems (conflict, social isolation, lack of support, and rejection) were associated with daily SI in adolescents presenting with BPD features. Perceived rejection (β = 0.05, SE = 0.02, p = .03), support (β = 0.09, SE = 0.02, p < .001), and conflict (β = 6.07, SE = 1.30, p < .001) were associated with SI concurrently. Those with weaker social problem-solving abilities were more likely to experience SI in response to perceived rejection (β = -0.3, SE = 0.01, p = .04). This study contributes …

Opening A Crack To Let The Light In: An Exploration Of An Online Group Adolescent Compassion Focussed Therapy Intervention, Euan Pb Fraser Tait

Electronic Thesis and Dissertation Repository

The current study’s goal is to expand the adolescent compassion focused therapy (CFT) literature by exploring participant experiences of a novel CFT protocol which was delivered in an online group therapy format. This study is a mixed methods approach using surveys, open-ended questionnaires, and interviews to explore participants’ experience and expression of feelings of inadequacy (FOI) and self-compassion. Thematic analysis findings revealed that participants struggled primarily with FOI relating to evaluative contexts such as school and sports and that these FOI also carried with them implications of self-worth and perfectionism. Through participating in the program, participants were able to de-shame …

Evaluating The Impact Of A Safe Exercise Training Workshop On Knowledge And Self-Efficacy To Manage Dysfunctional Exercise Among Eating Disorders Clinicians At Alsana Eating Disorders Center, Danika A. Quesnel

Electronic Thesis and Dissertation Repository

Engaging in dysfunctional exercise (DEX) is detrimental to eating disorders (EDs) prognosis, although common amongst clients. Though nutritionally supported exercise can improve ED treatment outcomes, without negatively impacting weight restoration, clinicians remain hesitant to address DEX, perhaps due to a lack of information and training. The current study examined the effects of a Safe Exercise at Every Stage (SEES) training on clinician knowledge and self-efficacy in managing DEX in ED treatment. Eating disorders clinicians completed measures before (n = 96) and after (n = 44) SEES training to assess their knowledge and self-efficacy around treating DEX, with a …