Developmental Psychology Commons^™

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 …

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 …

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 …

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 …

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 …

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 …

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 …

The Perceived Frequency And Effects Of Multilingual Communication In Youth And Adolescent Soccer, Simao M. Araujo

Theses and Dissertations (Comprehensive)

In professional soccer, the topic of multilingual communication has been widely researched; however, there appears to be a gap in the literature concerning how multilingual use is perceived by athletes and coaches at the youth and adolescent level of the sport. In the present study, male soccer athletes ages 10 to 18 years old and their coaches completed a questionnaire in which they rated both perceived frequency of use and perceived effects of using multilingual communication in youth and adolescent soccer. Specifically, these questionnaires elicited quantitative information regarding categories such as tactical advantages, words of encouragement, general expressions, and group …

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 …

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 …

Examining Gender Differences In Heritage Language Maintenance And Loss Among South Asian First-Generation Canadians, And The Effect On Well-Being, Amreen Sangha

Theses and Dissertations (Comprehensive)

Language is prevalent in various aspects of life. Not only is it often essential for communication, but it also has deep roots within cultural contexts. Specifically, within South Asian culture knowing one’s heritage language is considered to be necessary when it comes to connecting with one's cultural group and identity. Heritage language maintenance can be seen differently within different individuals and have different implications for them. This study was designed to explore gender differences in heritage language loss as well as the role language may play in one’s well-being. Canadian-born South Asian children and young adults aged 10-25 completed an …

Technology-Enhanced Professional Development For Early Literacy: A Comparative Study Of Online Teacher Learning Models In Kenya, Constanza Uribe-Banda

Theses and Dissertations (Comprehensive)

Growing recognition of early literacy as essential for lifelong learning, along with evidence that teachers’ mastery of foundational literacy instruction influences student outcomes (Darling-Hammond et al., 2017; UNESCO, 2020), has led to increased investment in teacher professional development. Despite these efforts, many educators face significant challenges in accessing high-quality training, particularly in resource-constrained settings where geographical barriers and limited institutional support persist. This is especially true in rural Kenyan communities, where teachers often work in under-resourced schools with unreliable electricity and internet connectivity yet bear responsibility for laying critical literacy foundations. The present study examines the potential to deliver effective …

A Pilot Study Examining Children’S Evaluations And Reasoning About Concealment And Instrumental Forms Of Antisocial Lying, Noah Battaglia

Theses and Dissertations (Comprehensive)

Children as young as 4 years of age judge self-benefitting lies (i.e., antisocial lying) as wrong. Although this has traditionally been interpreted as evidence that young children view honesty as a moral obligation, contemporary moral development theory and research suggests that right/wrong judgments fail to capture important aspects of children’s social cognition. Research from a perspective known as social domain theory (Smetana et al., 2014; Turiel, 1983) has shown that children’s understanding of morality (i.e., norms concerning others’ rights and wellbeing) is distinct from their understanding of other types of socially unacceptable behaviour. While children judge many social events as …

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 …

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 …

Evaluating The Credibility Of Online Websites: A Digital Information Literacy Program, Emily C. Wood, Kim P. Roberts

Theses and Dissertations (Comprehensive)

The plethora of information currently available via the internet is greater than ever before. Given this, finding credible information is an exceedingly complex task for any information consumer, but especially so for children. Research shows that children have difficulty evaluating the credibility of online information and are more susceptible to believing misinformation compared to adolescents. While a growing body of research addresses children’s internet use, most research focuses on technology safety rather than the evaluation of online information. Several studies have found digital information literacy (DIL) interventions to be successful at increasing critical thinking and awareness of the criteria to …

Predictors Of Canadians’ Psychological Well-Being In Retirement: A Mixed Methods Approach, Jessica Miller

Theses and Dissertations (Comprehensive)

In prior decades, retirement research focused on the negative effects of the life transition—such as negative psychological well-being caused by factors such as difficulties adjusting to retirement, feelings of a role loss, or the financial effects of retirement. However, there is considerable agreement across recent research studies that post-retirement years are marked by positive psychological well-being due to a variety of factors. For example, retirees often spend more time in roles (such as volunteer positions) that provide life satisfaction. The present study uses both quantitative and qualitative methods to examine factors related to well-being in retirement among individuals living in …

Language Acquisition, Mental Health, And Acculturation Among Migrants In Canada, Ali Jasemi

Theses and Dissertations (Comprehensive)

This dissertation examines the integration of first-generation migrants in Canada, focusing on the constructs of acculturation, language proficiency, and mental health. With nearly a quarter of Canada's population comprising migrants (Statistics Canada, 2022), understanding their adjustment is critical. Acculturation, language proficiency, and mental health can all have an impact on the success of migrants in their new country (Balidemaj et al. 2019; Brance et al. 2023; Iversen et al. 2014; Rousseau et al. 2019; Rashtchi et al. 2012; Salami et al. 2019). There are a limited number of studies examining these variables in relation to certain migrant groups, such as …

Social-Emotional Outcomes In Emerging Adults With Adhd: The Influence Of Self-Compassion On Peer Rejection, Rejection Sensitivity, And Psychological Distress, Alia Hussain

Theses and Dissertations (Comprehensive)

Emerging adulthood, the developmental period ranging from 18 to 29 years, is a critical stage of development in which individuals grow their social skills, set and achieve life goals, learn to live independently, and further develop brain regions involved in higher-level cognition, shaped by their environment and experiences throughout emerging adulthood. Attention-deficit/hyperactivity disorder (ADHD) is a neurodevelopmental disorder associated with adverse interpersonal outcomes. Approximately 5 to 8% of emerging adults are reported to have an ADHD diagnosis and may be at higher risk than typically developing emerging adults for unfavourable developmental outcomes. This heightened risk may be attributed to their …

Parental Evaluations And Choice Of Math Apps For Their Young Children: Exploring The Impact Of Individual Differences, Nicola Urquhart

Theses and Dissertations (Comprehensive)

Well-designed math apps can have positive effects on young children’s math abilities (Bang et al., 2023; Griffith et al., 2019; Outhwaite et al., 2023), but research indicates that many commercially available math apps are not well designed (Dubé et al., 2019; Meyer et al., 2021). Studies also find that parents struggle to identify relevant features from app store descriptions (Montazami et al., 2022; Pearson et al., 2023). The purpose of the present research was to investigate how parents evaluate the apps themselves, and to test whether individual differences can affect parental app evaluations and decisions. In two parts of Study …

Distinctiveness And Similarity: How The Sub-Trait Facets Of The Big Five Self-Organize To Create Personality Types, Jonathan Thiessen

Theses and Dissertations (Comprehensive)

The belief that people can be placed within a personality typology has persisted for millennia. At least as far back as Hippocrates (ca. 460 BCE–370 BCE) people were believed to be of a kind based on the four humors—blood, yellow bile, black bile, and phlegm. Since then, there have been many conceptions of personality typologies. The Myers-Briggs Type Indicator and the Enneagram of Personality are likely the most well-known personality typologies among the general public. Despite their wide public usage, neither typology boasts strong empirical support. However, psychology continues to investigate personality for evidence of a typology of personality. In …

A Close Look At The Connections Between Mental-State Talk, Theory Of Mind, And Source Monitoring During Parent-Child Reminiscing Of Emotional Events, Mallory Earnshaw

Theses and Dissertations (Comprehensive)

Autobiographical memories play a critical role in shaping personal identity, regulating emotions, and guiding future behaviour. Reminiscing about these memories can be particularly beneficial for coping with negative experiences. This study investigated the connections between mental-state talk, theory of mind, and source monitoring in parent-child reminiscing, and how it can be influenced by remembering enjoyable versus frustrating events. This study involved children ages 3-8 (N = 50) and consisted of two sessions. In the first session, the child reminisced with their parent about an enjoyable and frustrating event and completed two source-monitoring tasks. In the second session, the child …

The Impact Of Social Media Influencers On Emerging Adults, Avnee Sharma

Theses and Dissertations (Comprehensive)

Social media influencers (SMIs) (defined as individuals who have 10,000 or more followers) are a group of people who garner attention and who seem to have an impact on thought and behaviour change on social media platforms. To date, it is unclear how much social media influencers influence emerging adults. Given that emerging adulthood is a developmental stage that includes exploration of self and offers more autonomy from one’s parents and is a time where social media is frequently used, it is important to explore how social media informs their decisions and choices. To explore this relationship, this research consists …

Relationships Between Executive Functioning, Memory, And Source Judgements On Children’S Responses To Online Advertising, Samantha Barbosa

Theses and Dissertations (Comprehensive)

Children’s understanding of online content is a topic of interest, yet little is known about how children distinguish distracting and often misleading information (e.g., advertisements) from relevant information. Our aim is to measure the relationship between executive functioning, memory and source monitoring in a population that has heavy internet usage and are also the most at risk for mistakenly recalling false or irrelevant information. Children aged 7-12 years old (N = 30), with no known developmental or cognitive disorders, were recruited for the study. In an online session, the children viewed two novel online media sources (i.e., a website …

Exploring Individuals’ Views On The Malleability Of Their Moral Self-Concept, Steven Hertz

Theses and Dissertations (Comprehensive)

Drawing on work by Carol Dweck, Moral Self-Theory was conceptualized as describing lay views of the moral self-concept as either malleable (incrementalist view) or fixed (entity view) in order to better capture the goal-achievement aspect of morality. To this end, research into the areas of implicit theories of intelligence and personality were drawn upon to explore the possibility that lay views of morality could help inform our understanding of moral behaviour. Three studies were designed to: 1) examine individuals’ perceptions of their moral self-concept over time for evidence of change and assess participants’ opinions towards that change, as well as …

Using Online Training Modules To Enhance Parents' Early Literacy Training Skills And Understanding, Ayodele Sanni

Theses and Dissertations (Comprehensive)

Parental involvement is considered a crucial factor in developing children’s early literacy and reading skills, especially for children not yet in school. The present study aims to determine whether an online literacy module can increase early literacy knowledge in parents who may not have the training to promote their child’s learning. Additionally, the study examines parent perspectives of online video training and the practicality of the video’s content. To test the hypothesis that parent knowledge will increase after exposure to the online video, 29 Canadian parents (27 mothers, two fathers) with children aged 3 to 5 were provided with supervised …

First Language Loss And Maintenance In Adolescents And Young Adults From Immigrant Backgrounds, Wanxin Li

Theses and Dissertations (Comprehensive)

Abstract

Language attrition is a documented phenomenon that occurs when individuals progressively lose their first language (Schmid et al., 2007). This is particularly common among individuals who relocate to a country that speaks a foreign language that differs from their first language, as the societal language eventually becomes their dominant language. Deterioration and loss of the first language (L1) may result in consequences such as loss of ethnic and cultural identity, leading to the loss of a link to one’s country of origin (Cho & Krashen, 1998). Thus, the present study examined factors that may contribute to L1 attrition. The …

Reading In Kapampangan, Filipino, And English: A Look At Multilingual Children In An Economically Challenging Philippine Community, Portia Padilla

Theses and Dissertations (Comprehensive)

The present studies advance current understanding of the skills and processes involved in multilingual reading, especially in less researched alphabetic languages. These studies examined whether the dominant models in reading in English can explain the reading processes involved among low-income multilingual speakers of Kapampangan (L1), Filipino (L2), and English (L3) in the Philippines, a developing country. Kapampangan and Filipino use the same Roman alphabet that English uses. However, these two languages have transparent orthographies while English has an opaque orthography.

Study 1 examined the psycholinguistic grain size theory within the context of multilingual reading. There were three hundred twenty-six children …

Investigating The Use Of Mental-State Talk In Parent-Child Joint Reminiscing And Storytelling On Children’S Source Monitoring, Holly Autumn Nelson

Theses and Dissertations (Comprehensive)

Source monitoring is the process of identifying and analyzing sources of information (Johnson et al., 1993). The ability to monitor source improves with age which places children at a greater risk for blending and misattributing information from different sources. Experiencing source confusions has academic, legal, and social implications, and thus understanding how source monitoring develops is important. Research exploring factors that impact source monitoring have predominantly focused on maturational aspects such as at which ages children learn to monitor source and neurological factors such as executive functioning. However, the impact of age and executive functioning may vary across the type …

Mother-Child Shared Story Telling Of Wordless And Worded Picture Books: A Within-Subject Design Study Of Preschool Children, Katherine Reid, Alexandra Gottardo

Theses and Dissertations (Comprehensive)

Issues pertinent to developmental psychology and education often intersect. For example, both literatures can inform the assessment of differences in early literacy and school readiness, as well as how to bridge the literacy gap for children coming from different backgrounds. In times of COVID-19, it is especially important that we research the impact of strategies that are accessible to all, and can be utilized both in the home, and in more formal learning environments. This study assessed how the use of wordless picture books impacted the quality and quantity of language output, and engagement in dialogue between mother and child. …