Developmental Psychology Commons^™

Attention's Grasp: Early And Late Hand Proximity Effects On Visual Evoked Potentials, Catherine L. Reed, David S. Leland, Benjamin Brekke '11, Alan Hartley

CMC Faculty Publications and Research

Behavioral studies suggest that visual attention is biased toward stimuli in the region of space near the palm of the hand, but it is unclear whether this effect is universal or selective for goal/task-related stimuli. We examined event-related potentials (ERPs) using a visual detection task in which the hand was placed near or kept far from target and non-target stimuli that were matched for frequency and visual features to avoid confounding factors. Focusing on attention-sensitive ERP components, we found that P3 (350–450 ms) amplitudes were increased for Hand Near conditions for targets only, demonstrating a selective effect consistent with the …

Infant Perceptions Of Mixed-Race Faces: An Exploration Of The Hypodescent Rule In 8.5 Month-Old Infants, Sophie Beiers

Pitzer Senior Theses

Studies have shown that adults often categorize mixed-race individuals of White and non-White descent as members of the non-White racial group, an effect said to be reminiscent of the “hypodescent” or “one-drop rule.” This effect has not yet been thoroughly studied in infants, although 9-month-old infants have been shown to be able to categorize mono-racial faces into different racial groups. In the present study, the perception of mixed-race White and Asian/Asian American faces was studied in sixteen 8.5-month-old infants. The infants were randomly assigned to two stimulus groups. The stimuli were the photographed faces of female college students who had …

Infants’ Responses To Affect In Music And Speech, Daniel K. Feinberg

Pitzer Senior Theses

Existing literature demonstrates that infants can discriminate between categories of infant-directed (ID) speech based on the speaker’s intended message – that is, infants recognize the difference between comforting and approving ID speech, and treat different utterances from within these two categories similarly. Furthermore, the literature also demonstrates that infants understand many aspects of music and can discriminate between happy and sad music. Building on these findings, the present study investigated whether exposure to happy or sad piano music would systematically affect infants’ preferences for comforting or approving ID speech. Five- to nine-month-old infants’ preferences for comforting or approving ID speech …

Parenting Styles And Self-Esteem, Lucy C. Driscoll

Scripps Senior Theses

Data from 183 participants were collected through an online survey focusing on the relationship between parenting styles and self-esteem across a specific age range. Parenting styles were assessed using a four-factor model while self-esteem was evaluated using two different scales. Multiple analyses were completed to find that self-esteem changed across the age range, and across parenting styles. The study looks at the ways in which these two variables changed. Implications, limitations and future research opportunities are discussed.

Form And Functionality Of Playful Aggression In Young Adults, Catlin H. Dennis

Scripps Senior Theses

Ethological and developmental studies have demonstrated the presence and importance of playful aggression for primates and children; additional studies suggest that playful aggression is also present in adulthood but is adapted and incorporated into relationships in different ways than it previously was in childhood. Little is known about young adults’ perceptions of playful aggression in romantic relationships, especially among same-sex couples. This study investigated perceptions of aggression when the sexual orientation of the couple, the severity of aggression, and the response of the recipient, who was receiving the aggression, were manipulated in a series of scenarios. Young adults, ages 18 …

Evidence For The Bypass Of The Response-Selection Bottleneck In Tasks With Reflexive Responses In Younger And Older Adults, Brandi S. Seaman

Scripps Senior Theses

This study investigated dual-task processing in younger and older adults using a psychological refractory period procedure. The first task was to name the color framing a picture; the second task was to either press a button or tilt their body in the direction of the tilt of the picture. In the body-tilt condition, electromyography was used to determine the reaction time. The stimulus-onset asynchrony (SOA) between the onset of the color and tilting of the picture varied from 50 to 1000 ms. In contrast with the response selection bottleneck model, which claims that processing of a second task cannot be …

The Effect Of Organized Sports On Academic Achievement And Youth Development, Nicole Franklin

CMC Senior Theses

This thesis explores the relationship between sports, academics, and youth development, in 5^th- 9^th grade boys and girls from low-income families. This exploration includes an analysis of a non-profit organization called “Rainier Athletes.” This program underwrites the cost of organized sports for low-income children with the belief that sports help empower students so that they make positive choices inside the classroom and in the future. Rainier Athletes uses a token economy design in the classroom where students earn points by fulfilling academic expectations and displaying positive behavior.

Researchers concluded that sports participation had a beneficial effect on …

Language Brokering A Dynamic Phenomenon: A Qualitative Study Examining The Experiences Of Latina/O Language Brokers, Adriana Esquivel

Scripps Senior Theses

Language brokers are children of immigrants who use their skills as bilinguals to interpret or translate for their family and/or community members. Although language brokering may begin in childhood or preadolescence, language brokering may continue until adulthood. While there are a small number of studies that have touched upon change over time, this study’s primary focus is on language brokers’ experiences relating to change over time. This was accomplished through semi-structured in depth retrospective interviews among Latina/o young adults attending small liberal arts colleges. Three aspects of language brokering were examined, the practice of language brokering, feeling towards language brokering, …

Verbal Scaffolding In Children's Theory Of Mind, Kathline C. Gomes

Scripps Senior Theses

For nearly 30 years, researchers have been proposing and testing theories of the cognitive mechanisms that underlie children’s abilities to comprehend the mental states of others and to predict behavior on the basis of those abilities. One such theory, the “theory theory,” contends that children evaluate their own understanding of others’ minds, developing a theory and expanding it when they encounter situations incongruent with their predictions. Wellman and Liu (2004) present a scale of the changes that children’s understanding of mental state representations commonly undergo as children develop a mature theory of mind. The present study aims to clarify how …

Courtroom Discussions About Children's Sexual Abuse: An Examination Of Prior Conversations About Disclosures, Non-Disclosures And Perpetrator Statements To Children About Abuse, Stacia N. Stolzenberg

CGU Theses & Dissertations

This study explored the content of courtroom conversations about children's prior discussions regarding sexual abuse. Sixty felony child abuse trial transcripts including child testimony and reviewing court opinions were collected from the Court of Appeal and from court reporters. Information was obtained from under Section 288 of the California Penal code (sexual abuse of a child under 14 years of age) filed in Los Angeles County from 1997 to 2001. For this study, transcript testimony was transcribed, extracted for the necessary information, coded, assessed for reliability, and analyzed. The findings indicate that conversations about children's prior disclosure conversations, non-disclosure conversations, …

Investigating Young Children's Music-Making Behavior: A Developmental Theory, Paul G. Morehouse

CGU Theses & Dissertations

We have many developmental theories contributing to our understanding of children as they meander steadfastly toward maturation. Yet, none have reported on how young children interpret the qualitative meaning and importance of their own music-making experiences. Music created by average, not prodigious, young children is perceived by adults as “play” music rather than “real” music. But do young children take the same view as adults? When Piaget speaks of the young child’s qualitatively unique view and experience of the world (Ginsberg & Opper, 1988), can we assume that his statement encompasses young children’s predispositions related to music-making?

Music is understood …

Early Adolescent Non-Suicidal Self-Injury And Sensory Preference Differences: An Exploratory Study, Jacquelyn Shea Christensen

CGU Theses & Dissertations

BACKGROUND: Non-suicidal self-injury (NSSI) occurs in 13% to 20% of adolescents, and is often indicative of deeper internal or social problems. A close review of current explanatory models of NSSI suggested that underlying individual sensory preferences may contribute substantial explanations for the self-regulatory functions of NSSI, as well as have implications for treatment approaches. In the context of integrating sensory processing models with prominent functional NSSI models, this dissertation research compared sensory preferences in youth who engaged in NSSI to sensory preferences of youth who did not engage in NSSI.

OBJECTIVE: NSSI-engaging youth were hypothesized to have lower threshold sensory …

The Claremont Autism Center, Alex E. Mitchell Mr.

CMC Senior Theses

The Claremont Autism Center is a 23 minute documentary on the strengths and benefits the Center brings to Claremont McKenna students, as well as children and families from the Inland Empire that deal with Autism on a daily basis.

The Relationship Of Leadership Styles, Context, And Outcomes, Max A. Anawalt

CMC Senior Theses

New and experienced leaders sometimes underestimate the importance of the follower and context in their ability to be effective and successful in the long term.  During an organization crisis or in a conflict situation, a leaders’ verbal and nonverbal communication behaviors and an awareness of the contextual factors and followers’ feelings involved may contribute more to long-term effectiveness and success more generally than certain characteristics or type of leadership, even if that style is the prevalent model of leadership within the organization. In theory, every leader should benefit from a greater understanding of the evolving study and theory of leadership …

The Homeless Adolescent Population: Complexity, Protective Factors, And Prevention, Anastasia Jones

CMC Senior Theses

The growing number of people living below the poverty line has made homelessness a topic of interest, once again. This paper focuses on the homeless adolescent population that is often overlooked, and explores the complexity of the homeless situation, and how there is no definite solution to overcome homelessness. At-risk and homeless adolescents are affected by many negative factors that cause them to seek early independence, such as parenting style, finical instability, lack of an education, drugs and alcohol, physical and sexual abuse, all of which are discussed in this paper. Along with the negative factors, there are protective barriers …

Exploring The Flynn Effect: A Comprehensive Review Of The Causal Debate, Abby J. Trimble

CMC Senior Theses

Since its discovery in 1984, psychological investigators have continued to explore the Flynn Effect, the phenomenon of consistent and secular IQ gains within industrialized nations approximating 0.3 points per year. The most contentious debate within this field of research surrounds the purported cause of the Effect, and yet the research literature lacks a synthesis of the leading causal theories and the evidence supporting them. The principal hypothesized causal mechanisms – psychometric artifact, educational intervention, environmental changes, nutrition, genetics, gene-environment interaction model, medical improvements, and the multiplicity hypothesis – are reviewed and analyzed within the larger breadth of Flynn Effect scholarly …

Neural Reuse As A Source Of Developmental Homology, David S. Moore, Chris Moore

Pitzer Faculty Publications and Research

Neural reuse theories should interest developmental psychologists because these theories can potentially illuminate the developmental relations among psychological characteristics observed across the lifespan. Characteristics that develop by exploiting pre-existing neural circuits can be thought of as developmental homologues. And, understood in this way, the homology concept that has proven valuable for evolutionary biologists can be used productively to study psychological/behavioral development.

Epigenetics: Blurring The Line Between Nature And Nurture, Elizabeth H. Rose

CMC Senior Theses

This long-standing nature versus nurture debate is cited in behavioral and physical expressions of disease dysfunctions, resiliencies, and recovery. Their purposes are noted both in scientific pursuits as well as literature. This discourse has been particularly intense in the fields of psychology, psychiatry, and biology where there is a long history of scientists’ attempts to disprove or discredit others’ intellectual and professional measures. Interestingly, recent advances in the neurosciences and genetic technologies have brought these fields closer together with a new focus – the interactional relationship between nature and nurture – epigenetics.

Adhd: Culture, Treatment Strategies And Their Relevance To Preschool Children, Nelson M. Bean

CMC Senior Theses

In recent decades a growing number of individuals in preschool, middle childhood and adolescence have been diagnosed with ADHD. Accompanying increasing rates of diagnoses is an increase in the use of stimulant medication in preschool populations, a practice not approved by the Food and Drug Administration. This paper reviews the current literature pertaining the social and developmental consequences of ADHD, its effect on the child and family, treatment strategies with and without the use of stimulants, and cultural and diagnostic trends which may be contributing to the rising number of diagnoses. A review of the literature suggests that there is …

The Reality Of Child Sexual Abuse: A Critique Of The Arguments Used By Adult-Child Sex Advoates, Kacey Klein

CMC Senior Theses

In the United States, there are advocacy groups that support sexual relationships between adults and children. These groups use justifications that make pedophile behaviors seem normal and appropriate. This thesis describes the physical, emotional, and psychological harms that result from child sexual abuse. The reader will understand how prominent child sexual abuse is and how it takes a lot of effort for abusers to take advantage of children. There are many psychological resources available to children and their families, but it does not make sexual abuse okay for society to ignore. The justifications used by pedophile advocates are irrational and …

The Development And Long-Term Influences Of Attachments As Seen Through Attachment Theory: The Influence Of Attachment On Homosexual Males, Christian Alvarez

CMC Senior Theses

This paper seeks to explore the development of attachments in humans as seen through Bowlby's (1980) attachment theory. Components of the theory which focus on how attachments are formed and how they influence future behavior are explored. These are used to then examine how attachment theory applies to the attachment patterns seen in homosexual males.

The Role Of The Socio-Cultural And Developmental Context On Special Education, Amanda Lam

CMC Senior Theses

Existing research on inclusive education deals primarily with the effectiveness of inclusion programs and the theoretical frameworks behind their limitation. However, no extensive research has been conducted that explores the role of the socio-cultural context and the development level in determining the best way in which the educational needs of children with special needs can be met. Recognizing that the effectiveness of different special education services may depend on the socio-cultural context as well as the development level, this literature review seeks to identify the ideal method of treating children with disabilities in developed and developing countries. By assessing the …

The Effects Of Communication Disorders On Social Development, Heather M. Back

CMC Senior Theses

This paper explores literature on the effects of communication disorders on the social development of children. The paper discusses such topics as the effects of communication disorders on personality development, the ability to make friends and resolve conflict with peers, and academic success. It also discusses the influences of multiculturalism and bilingualism on the diagnosis of communication disorders and reflects on the importance of awareness of cultural differences in communication style to avoid a misdiagnosis. Research shows that without intervention and treatment communication disorders can have irreversible detrimental effects on a child’s ability to develop effect social-communication, to make friends, …

Perception Precedes Computation: Can Familiarity Preferences Explain Apparent Calculation By Human Babies?, David S. Moore, Laura A. Cocas

Pitzer Faculty Publications and Research

Two studies of 5-month-old infants explored whether a phenomenon reported by K. Wynn (1992) reflects a familiarity preference instead of a mathematical competence. Experiment 1 was a conceptual replication of Wynn's study. When data were analyzed with the relatively liberal statistical approach used by Wynn, the original phenomenon was replicated. However, an analysis of variance revealed that girls and boys behaved in different ways, and that boys did not behave as Wynn would have predicted. Experiment 2 was identical to Experiment 1, with one exception that should not have influenced computation: Infants in this study were completely familiarized with the …

Trying To Fix The Development In Evolutionary Developmental Psychology, David S. Moore

Pitzer Faculty Publications and Research

If we agree for a moment that there is such a thing as human nature, we immediately encounter an extraordinarily thorny question: Where does our nature come from? This question drives David Bjorklund and Anthony Pellegrini’s new book The Origins of Human Nature: Evolutionary Developmental Psychology. The question is so challenging, in part, because human nature reflects at least two conceptually distinct processes: evolution and development. The former, which operates across generations, allows the continued existence of characteristics that permitted survival and reproduction in our ancestors; the latter, which operates during a person’s lifetime, contributes to the appearance of …

Psychosocial Variables As Prospective Predictors Of Violent Events Among Adolescents, Alan W. Stacy, Steve Sussman, Clyde W. Dent, Dee Burton, Brian R. Flay

CGU Faculty Publications and Research

Violent events are main causes of mortality among children and include intentional (e.g., homicide) and unintentional (e.g., accidents) circumstances. This study investigated the prediction of the self-reported occurrence of 14 violent events among eighth-grade youth from psychosocial variables measured in these same youth in seventh grade. Psychosocial variables ineluded tobacco and alcohol use, demographic variables, interpersonal variables such as family conflict, and intrapersonal variables such as risk taking. An iterative procedure, involving selection of a set of predictors and a test of the correlation of the set of predictors to the set of events, provided support for an extension of …