The purpose of this study was to determine the impact that meaningful watershed educational experiences (MWEE) had on the academic achievement of middle school students. A quantitative, ex post facto causal-comparative design was used. The sample population consisted of 1067 8th-grade students across four middle schools within the Pennsylvania…

Adolescent suicide is a critical problem in the United States. Identification and reporting of warning signs is a suicide prevention practice that is particularly important in schools, where adolescents spend the majority of their time. Though it is necessary to consider both risk factors and warning signs when evaluating an individual's suicide…

Guided by the life course perspective, this study investigated the developmental antecedents of contact, closeness/warmth, and negativity in young adults' relationships with their parents. Taking the developmental systems approach, we considered interindividual differences in not only initial levels of parenting quality in early adolescence (Grade…

Background: The Pennsylvania Youth Survey (PAYS) is administered biennially to adolescents; it covers knowledge, attitudes, and behaviors about risk and protective factors. Purpose: This study explored 8th, 10th, and 12th grade students' attitudes and beliefs about current trends regarding drugs, alcohol, and mental health. Methods: We asked…

Few longitudinal studies examine how "changes" in parent-child relationships are associated with changes in youth internalizing problems. In this longitudinal study, we investigated how developmental trends (linear change) and year-to-year lability (within-person fluctuations) in parental warmth and hostility across Grades 6 to 8 predict…

Little is known about the naturalistic development of mindfulness in adolescence and how it relates to changes in emotional well-being. The current longitudinal study examined the development of one dimension of mindfulness, nonreactivity to difficult inner experience (or in more colloquial terms, being able to notice, but "take a step…

Plate tectonics is the organizing paradigm of geosciences, but it is also conceptually complex, and students often struggle with developing a system level understanding of the earth. This article reports on research designed to create a characterization of the different levels of sophistication around plate tectonics in the form of a learning…

The purpose of this study was to determine whether restrictions put in place during the COVID-19 pandemic affected the social and psychological well-being of early adolescent schoolchildren. Participants were 309 youth (51% female, average age = 12.38 years) enrolled in the sixth, seventh, or eighth grades of a single middle school located in…

This study examines developmental change across adolescence in the similarity of friends versus nonfriends. This differential in similarity is a key aspect of the organization of the peer context of development: The stronger the correlation between friends for an attribute, the more the attribute delineates clustering and divisions of friendships.…

Many students' knowledge of fractions is adversely affected by whole number bias, the tendency to focus on the separate whole number components (numerator and denominator) of a fraction rather than on the fraction's magnitude (ratio of numerator to denominator). Although whole number bias appears early in the fraction learning process and under…

Background: Many students carry negative beliefs about nuclear radiation and have concerns regarding the safety of nuclear power. However, most of these students have not had any personal or educational experiences with nuclear radiation or reactors on which to form these opinions. Purpose: To examine the influence that a visit to a nuclear…

Providing students with the opportunity to generate new content and share it with a wide audience invites students to compose texts with the care and conviction that cannot be duplicated when writing solely for the teacher. This piece documents one teacher's effort to engage 99 eighth graders with an authentic writing opportunity: the…

According to family systems and life course theories, periods of intense change, such as early adolescence, can disrupt stable family systems, leading to changes in family relationships. In this longitudinal study, we investigate 2 types of change in parental hostility and warmth toward their children during early adolescence (Grades 6 to…

Fraction and decimal arithmetic are crucial for later mathematics achievement and for ability to succeed in many professions. Unfortunately, these capabilities pose large difficulties for many children and adults, and students' proficiency in them has shown little sign of improvement over the past three decades. To summarize what is known about…

This study investigates the influence of structural transitions to high school on adolescents' friendship networks and academic grades from 6th through 12th grade, in a direct comparison of students who do and do not transition. We utilize data from 14,462 youth in 51 networks from 26 districts (Promoting School-Community Partnerships to Enhance…