Psychology Commons^™

Self-Reflecting On 30 Years Of Liberational Praxis: A Pluri-Epistemic Journey Embracing The Relational Indigenous Research Paradigm To Expand The Emancipatory Aims Of The Psychology Of Liberation., Adriana Fernand Salazar Ms

Theses and Dissertations (Comprehensive)

This thesis asks how embracing Relational Epistemology, through accountable Pluri-Epistemic Dialogue, expands the Emancipatory aims of the Psychology of Liberation and deepens Liberational Praxis. Grounded in thirty years of Liberational Praxis, it brings the Psychology of Liberation into accountable encounter with Indigenous and Postcolonial Relational Epistemologies, without claiming Indigenous identity, authority, ceremony, or ownership. Within this situated encounter, Pensar Bonito (Tidy Thinking) illuminates movements from Martín-Baró’s Historical Memory toward Territorial and Ancestral Memory, from Freirean Dialogue toward walking the Word, from Fals Borda’s sentipensante toward Body-Nature and Body-Us, and from decolonial critique toward practices of Care and Subversion. Through a …

The Power Of The Mind: Exploring The Perceived Benefits Of Spiritual Meditation For Children's Loss And Grief, Shefali Bhalla

Theses and Dissertations (Comprehensive)

Grief and loss can significantly affect children’s emotional, cognitive, and social development, yet many existing interventions remain difficult to access due to stigma, cost, and limited cultural fit. Meditation has shown promise as a low-cost and adaptable strategy for supporting emotional regulation, but little is known about how children themselves perceive its usefulness in grief-related contexts. The present study explored children’s beliefs about the usefulness of spiritual meditation as a coping strategy across grief, interpersonal conflict, and positive emotional vignettes. Fourteen children between the ages of 8 and 13 participated in individual Zoom sessions in which they listened to three …

Unveiling Othering Experiences In Multiethnic Families: Narratives Of Identity And Belonging Among White/Hispanoamerican Women, Maria-Esther Wood

Theses and Dissertations (Comprehensive)

This dissertation explores the lived experiences of multiethnic Hispanoamerican women as they navigate identity, belonging, and familial othering within the context of multiethnic family systems. Using qualitative narrative inquiry, the study centres the voices of nine women residing in Ontario, each with one white parent and one Hispanoamerican parent, ranging in age from 19 to 65. Guided by Dewey’s three-dimensional model of narrative analysis, the research explores how personal stories reflect broader patterns of othering and belonging, the central research question asks: What specific forms of othering related to identity and belonging—inclusive of discrimination and racist treatment—do multiethnic Hispanoamerican women …

Exploring The Role Of Cognitive Load In Applicant Faking And Prevention Methods, Sabah Rasheed

Theses and Dissertations (Comprehensive)

Personnel selection is critical to organizational success, and personality assessment is widely used to identify the best job candidates. However, applicant faking threatens the validity of personality assessments in high-stakes contexts. Faking is widely assumed to be more cognitively demanding than honest responding, and several faking-prevention methods rest on this premise. This dissertation examines that assumption across three studies using the dual-task paradigm to impose cognitive demands during personality assessments. Study 1 used a verbal digit-span task with a student sample and limited faking on the three job-relevant personality composites. Study 2 used a visual dual-task with a student sample …

Exploring Parent-Child Reminiscing Style And Internal-State Talk When Discussing Positive And Negative Shared Events, Komal Verma Miss.

Theses and Dissertations (Comprehensive)

Conversations between parents and children about past events play a critical role in children’s social, emotional, and cognitive development. Parents scaffold their children in learning to recount details of their autobiographical memories by creating a space to reflect on internal states, specifically emotions and cognitions. Parents with an ‘elaborative’ reminiscing style are responsive to children’s utterances and ask open-ended questions (e.g., What do you remember about...?). Parents who are less ‘elaborative’ typically ask narrow questions like Did you like it?” that do not encourage conversation. Children whose parents use an elaborative reminiscing style have children who produce the most detailed …

Adapting To Uncertainty: Effects Of Environmental Instability On Zebrafish Behaviour, Britney Sekulovski

Theses and Dissertations (Comprehensive)

This thesis addresses how animals cope with unpredictability by testing how environmental stability changes the behaviour of zebrafish (Danio rerio) in two complementary experiments. In Experiment 1, fish lived for three months in either a Dynamic environment (water temperature, feeding times, habitat complexity, group size, and membership fluctuated) or a Stable environment (all factors constant). Across seven behavioural assays, measuring individual behavioural differences, collective movement, social memory, and information use, Dynamic condition fish were found to be more sensitive to social cues and more likely to conform to recent social information, independent of the quality of the information …

Neural Correlates Of Cognitive Fatigue In Regular Cannabis Users And Non-Users: A Pilot Fnirs Study, Mariia Vistyzenko

Theses and Dissertations (Comprehensive)

Background: Cognitive fatigue impairs performance across multiple domains, yet how regular cannabis use affects fatigue responses remains unclear. This pilot study investigated neural and behavioural correlates of cognitive fatigue in abstinent cannabis users versus non-users.

Methods: Twenty-six participants (18 non-users, 8 regular cannabis users after 24-hour abstinence) completed cognitive tasks before and after a 60-minute Sustained Attention to Response Task (SART) designed to induce fatigue. Tasks assessed working memory (N-Back), cognitive flexibility (Wisconsin Card Sorting), psychomotor speed (Digit Symbol Substitution), sustained attention (Continuous Performance Task), inhibition (Stroop, Stop Signal), and motion perception. Functional near-infrared spectroscopy (fNIRS) continuously monitored prefrontal cortex …

Variables Related To School Readiness Among Canadian Children With Attention Deficit Hyperactivity Disorder Symptomology, Carlye Brokl

Theses and Dissertations (Comprehensive)

Children with attention deficit hyperactivity disorder (ADHD) symptoms face challenges academically, behaviourally, and socioemotionally at entry to formal education. Yet, these symptoms are rarely investigated prior to school entry, reducing the time that parents can prepare by learning about the disorder, scaffolding their children’s skills, and mediating the risk of long-lasting consequences related to unpreparedness for school. Within the current study, we aimed to uncover specific skills and elements within children’s environments which may be targeted for intervention prior to entering formal education. More specifically, we examined the relationship between the home literacy environment (HLE), mental-state understanding, ADHD symptomology, and …

Children's Peer Selection In Stem: The Influence Of Gender, Ethnicity, And Disability, Meagan Girard, Kim P. Roberts

Theses and Dissertations (Comprehensive)

The present study examined how children’s peer selection in STEM (science, technology, engineering, and mathematics) may be influenced by gender, ethnicity, and physical disability. Sixty-four children (ages 6-12) from elementary schools in Southwestern Ontario completed three tasks: a simulated peer selection task, an attribution of ability task, and a stereotype belief questionnaire. In the peer selection task, participants were repeatedly asked to select one peer from a set of AI-generated photographs showing children who differed by gender (male, female), ethnicity (White, Black, East Asian), and physical disability status (able-bodied user vs. nondisabled). The Peer Selection Task was based on the …

Injury To Insight: Exploring The Influence Of Media On Acl Rehabilitation Experiences Of Female Soccer Players, Chynna Ho-Young Cadogan, Jill Tracey

Theses and Dissertations (Comprehensive)

Participation in soccer inherently carries a risk of injury, with female athletes facing a significantly higher susceptibility to anterior cruciate ligament (ACL) injuries (Campbell et al., 2014; Le et al., 2025; Silvers-Granelli, 2021). The increasing participation in women’s soccer, coupled with the growing demand for its consumption through spectatorship, has contributed to a rise in ACL injuries, and increase in media coverage on this phenomenon (Parsons et al., 2021). Understanding how media narratives surrounding ACL injuries and recovery may influence rehabilitation experiences can educate coaches, mental performance consultants, athletic therapists, and female soccer players to better understand and navigate ACL …

Eeg Correlates Of Tactile Synchrony, Devon K. R. Gallagher

Theses and Dissertations (Comprehensive)

New research on the tactile system has suggested that cortical representations of body parts are not fixed, as previously thought, and are instead dynamically maintained through constant sensorimotor information and feedback. Within the somatosensory cortex (S1), the capacity for both permanent and temporary changes have been the topic of ongoing research. The current study aimed to corroborate whether 24 hours of a finger adhesion manipulation is sufficient to elicit behavioural and electrophysiological correlates from cortical reorganization of digit representations in S1, using a behavioural paradigm outlined by Kolasinski et al. (2016). Through electroencephalography (EEG) recording during a tactile discrimination task, …

Moral Identity And Cognitive Mechanisms In Moral Decision-Making, Zachariah I. Hamzagic

Theses and Dissertations (Comprehensive)

Moral identity can be broadly conceptualized as the degree to which an individual places moral values as directly relevant to their personal identity. A recently introduced developmental framework of moral identity argues that moral identity can be conceptualized as a lifelong goal. According to this theoretical framework, the moral identity goal (i.e., to be a moral person and engage in moral action) becomes stronger over the course of development by becoming more abstract (i.e., general), internalized (to satisfy personal ideals) and promotion (i.e., action) oriented. Additionally, the strength of the moral identity goal predicts moral functioning. To date there has …

Picturing Your Goals: Examining Imagery Perspective And Self-Concordance In Goal Motivation, Cana J. Reuber

Theses and Dissertations (Comprehensive)

Mental imagery is often used as a strategy to increase motivation and support goal pursuit, but it remains unclear when different forms of imagery are most effective. Prior work suggests that adopting a third-person imagery perspective may enhance goal striving by promoting more abstract, identity-relevant processing. In line with this work, we predicted that third-person imagery would be most beneficial for self-concordant goals. The present research tested this prediction across three studies. In Study 1 (N = 273), participants identified a personal goal, visualized themselves pursuing and attaining it from either a first- or third-person perspective, and reported their …

An Examination Of Speech Motor Control And Auditory Processing In Attention Deficit Hyperactivity Disorder (Adhd), Rita Bishai

Theses and Dissertations (Comprehensive)

Fluent speech production is achieved through a relative weighting of feedback and feedforward motor control systems. These systems are thought to be responsible for the online correction of vocal errors and initiating speech, respectively. The relative weighting of these motor control systems has been shown to differ under conditions of high attentional load and across individual differences in sensory acuity. However, research has yet to examine speech motor control in a population with clinical attentional and sensory processing differences, such as those with Attention-Deficit Hyperactivity Disorder (ADHD). The studies in this thesis aimed to examine how ADHD traits relate to …

Sex Differences In The Use Of Cognitive Strategies In Brown-Headed Cowbirds (Molothrus Ater), Nicole E. Robinson Ms.

Theses and Dissertations (Comprehensive)

Cognition is widely believed to be adaptive, yet few studies directly show that variation in cognitive performance is related to fitness. Brown-headed cowbirds (Molothrus ater) provide a powerful system for addressing this gap because brood parasitism creates strikingly different reproductive problems for females and males. Females face the spatial demands of nest-prospecting, whereas males face social and competitive demands associated with access to mates. Across five experiments, cowbirds were tested on an outdoor foraging task designed as an analogue of nest prospecting, with manipulations of retention interval, cue conflict, and breeding condition, followed by observations of reproductive behaviour. …

Is Prosocial Behavior A Unique Correlate Of Academic Success In Emerging Adulthood?, Jacqueline Di Biase

Theses and Dissertations (Comprehensive)

Prior developmental research has frequently linked prosocial behavior to stronger academic functioning during childhood and adolescence (Cruz et al., 2024; Gerbino et al., 2018; Oberle et al., 2022), yet its relevance to academic success in emerging adulthood remains unclear. Guided by a Positive Youth Development (PYD) framework, the present study sought to address gaps in emerging adulthood research by examining the academic relevance of prosocial behavior while accounting for influential developmental assets and testing its independent contribution to academic achievement. Undergraduate students (N = 501) completed a cross-sectional self-report survey assessing prosocial behavior, self-control, dutifulness, sociability, and cumulative grade …

The Effects Of Appearance Change And Partial Face Visibility On Eyewitness Identification, Raina-Lynn A. Brock M.A., Judy Eaton Ph.D.

Theses and Dissertations (Comprehensive)

There is limited research examining the possibility of a temporary appearance change (e.g. a black eye) between exposure to a perpetrator at the time of a crime and later identification attempts by eyewitnesses. Across two experimental studies, this research examines how eyewitness identification decisions are impacted by an appearance change and how lineup procedures can influence eyewitness accuracy. Study 1 examined how a transient facial feature, a black eye, affects the accuracy of eyewitnesses’ identification decisions, while manipulating the severity of the black eye (prominent bruising, faded bruising, no bruising). Participants (N=403) were exposed to a 43-second mock crime video …

Exploring Engagement With The Ecoschools Platform: An Interactive Display Board Exploratory Evaluation, Kaitlyn E. Ashmore

Theses and Dissertations (Comprehensive)

This study explores strategies to enhance engagement with EcoSchools Canada, an online sustainability platform used across Canada. Through an exploratory case study involving two Waterloo Region District School Board (WRDSB) schools, the research evaluates the effectiveness of interactive tools such as an Interactive Display Board (IDB) and action cards in fostering student engagement, self-efficacy, and action competence in sustainability initiatives. Through examining user experiences and feedback from Eco-teams and staff, the findings aim to identify if and how these interventions serve as valuable complements to EcoSchools activities. Although not a standalone solution, these tools facilitate deeper involvement when integrated within …

The Forgotten Carers: A Study Of The Lived Experiences Of Chinese Canadians Caring For A Family Member With Borderline Personality Disorder (Bpd/Fbpd), Judy Y.F. Wu

Theses and Dissertations (Comprehensive)

There is a fair amount of literature on Borderline Personality Disorder (BPD); however, it still lags behind research on other major mental illnesses such as depression and schizophrenia (Furnham et al., 2015). Similarly, while there has been ample research on caring from various perspectives; little has been explored regarding caring for individuals with BPD. Research on Chinese Canadian families caring for patients with BPD is even more scarce. This study explored the lived experiences of Chinese Canadians caring for family members diagnosed with BPD (FBPD) in the Greater Toronto Area (GTA), Ontario, Canada. BPD is characterised by “interpersonal hypersensitivity, affective …

Mixed Methods Insights Into Understandings Of And Stigma Towards Autism In Children And Young Adults, Natalia Gc Van Esch

Theses and Dissertations (Comprehensive)

BACKGROUND: Autism is widely stigmatized and misunderstood. Existing research using methods such as questionnaires finds that autistic individuals are often evaluated more negatively than their non-autistic counterparts. Unfortunately, this approach provides limited insight into the underlying representations of autism that individuals hold. The present study seeks to examine how children and adults define, describe, and represent autism, and how these representations relate to stigma. METHODS: In Part I, children participated in a semi-structured interview in which they defined autism and created autistic and non-autistic characters using a guided character-building task. Children then rated their characters on a series of social …

Children's Interpretation Of Others' Faces Covered With Medical Masks, Sevval Cinar

Theses and Dissertations (Comprehensive)

How we recognize and regulate emotions is fundamental to overall health and wellbeing. Emotional recognition and understanding are key to proper communication and emotion regulation. Barriers, such as masks, might have an impact on the way children recognize and interpret others' emotions, and therefore the way they learn, communicate, and regulate their own. The COVID-19 pandemic necessitated widespread mask-wearing, raising questions about its impact on children’s emotional development. Using a sample of children with varying levels of exposure to mask wearing adults (N= 13, ages 4 to 6), we investigated how prolonged mask wearing predicts emotion recognition, particularly …

Co-Creation, Interpretations And Engagement With A Movement-Based Symbol For Climate Justice: A Qualitative Inquiry, Kai Reimer-Watts

Theses and Dissertations (Comprehensive)

The climate crisis demonstrates with complete clarity the need for massive systems-level changes towards far more sustainable societies. Global and local emissions need to decline rapidly to mitigate intensifying climate breakdown, accompanied by climate and sustainability solutions, to secure a far more stable, safe, and just future for all people and all life. Within these changes, engaging in our communities is essential to support and co-create broader solutions to help advance more sustainable societies, reduce negative impacts of a changing climate, and to move towards cultures and systems that recognize natural limits and centre care for people and planet.

‘Climate …

Moral Identity: From Theory To Research, Jean Paul Lefebvre

Theses and Dissertations (Comprehensive)

Moral identity, often defined as the importance or centrality of moral values to a person’s sense of self, has long been understood to play an important role in moral functioning. However, critical gaps remain regarding its development, cross-context stability, and behavioural significance. This dissertation addresses these gaps in three empirical studies, providing new insights into the nature and function of moral identity across the lifespan and in daily life.

The first study (Chapter 2) explores developmental trends in moral identity, testing predictions from moral identity goal theory (Krettenauer, 2022). Using a cross-sectional sample spanning adolescence to old age, the study …

Art/Place Making In A Settler Colonial Context: A Critical Place Inquiry On The Haldimand Tract/Kitchener-Waterloo From A White Settler Perspective, Haley Sheppard

Theses and Dissertations (Comprehensive)

Although critical place scholars implicate artists in settler colonial processes of placemaking, there is little information on how white settler artists (WSAs) might use their creative practice to support practices of accountability and solidarity with Indigenous resurgence. This research responds to this gap by investigating the creative practices of WSAs located on the Haldimand Tract/in Kitchener-Waterloo (KW), and how they might approach critical, contextual practices in their creative work. A critical place inquiry was combined with ethnographic research principles and a transformative critical research paradigm. Six WSAs participated in mobile interviews, which took place in a location significant to them. …

Knowledge, Efficacy, And Experience In Components Of Stem Education: The Impact Of Teacher Professional Development, Emily Krysten Marilyn Spencer-Mueller

Theses and Dissertations (Comprehensive)

Abstract

Around the globe, there has been a significant focus on ensuring youth receive sufficient education and training in Science, Technology, Engineering, and Math (STEM) domains. Education reforms often begin with educators, who are responsible for effectively implementing curriculum changes. However, in Canada, although STEM education reform is underway, teacher education and professional learning (PL) and development may not have kept pace, potentially leaving some teachers feeling unprepared to integrate these changes confidently and effectively. This dissertation introduces two studies that investigate pre-service teachers’ readiness to teach STEM domains in the classroom, as well as the impact of a PL …

Grief On The Margins: The Death Of A Family Member To Substance Use, Adair Shaw

Theses and Dissertations (Comprehensive)

Despite Canada's high death rates from substance use, there is limited research on the sociopsychological impact on families, who often face stigma and disenfranchised grief. This study explores how family members make meaning of a substance-related death. Through qualitative inquiry, eleven family members were interviewed on their experience of grief from substance death. The imprint of losing a family member to mental illness and substance use is fraught with intergenerational grief, ambiguity, prolonged mental-emotional distress, and relationship challenges. Substance death was also associated with stigma, social withdrawal, and shame for many participants. However, grievers reconstructed the socially prescribed negative perceptions …

Individual Differences In The Evolution Of Strategies In Spatial Problem Solving, Jade T. Moussa

Theses and Dissertations (Comprehensive)

Navigating the world requires a strategy – you must choose which information to attend to and use from a wealth of internal and external cues in order to find your way. People have biases to prioritize some kinds of information over other. This is, in part, determined by individual differences in cognitive abilities. For instance, some individuals have a bias for spatial information that leads them to not only solve spatial tasks faster but are also more likely to use spatial information to solve tasks even when other information is available. However, peoples' navigation strategies also evolve over time. Although …

What Is Success? How Peer Support Workers In Ontario See Addiction & Recovery, Ngaire Rasmussen

Theses and Dissertations (Comprehensive)

The drug crisis in Canada has high mortality rates, especially in remote and rural communities, but there are significant barriers to accessing healthcare to which peer support may represent a partial solution, (Eddie et al., 2019; Englander et al., 2020; The Government of Canada, 2023; Kourgiantakis et al., 2023; Lavalley et al., 2020; Lennox et al., 202; Russell et al., 2021). Research how peer support workers define success in their work with adults experiencing addiction in Ontario, Canada is lacking, but important to understanding the crisis and implementing peer programs. Grounded in Marxist theory, the following exploratory research investigated the …

Don’T Stop Believin’: Emotion Beliefs And Daily Affective Experiences Across Adulthood, Jocelyn A. Rutledge

Theses and Dissertations (Comprehensive)

Emotion control beliefs reflect the extent to which people believe emotions “should” and “can” be controlled and have been linked to psychological well-being. Research has yet to examine age-related differences in these beliefs and their daily associations with affective experiences. The present study examines age differences in daily emotion control beliefs and their within-person associations with positive and negative affect. The study used 14-day daily diary data from an adult lifespan community sample (younger adults: 18-36 years old, N = 72; older adults: 66-92 years old, N = 66). The results revealed that older adults reported …

Contrasting Trajectories In Adolescent Pro-Environmentalism: Qualitative Differences Between “Engagers” And “Disengagers”, Jaida Brown

Theses and Dissertations (Comprehensive)

This qualitative study extends Krettenauer and colleagues' (2024) longitudinal research by examining how different developmental contexts shape divergent trajectories in adolescents' environmental engagement. We conducted semi-structured interviews with nineteen adolescents, focusing on two distinct groups: "Engagers" who showed remarkable increases in pro-environmental behavior from ages 13 to 17, and "Disengagers" who exhibited substantial decreases inengagement during the same period. While all participants reported meaningful childhood nature experiences, supportive family sustainability practices and access to environmental information through media, their developmental paths diverged significantly. Disengagers gradually deprioritized environmental concerns as other life goals took precedence, while Engagers actively expanded their environmental …