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Galla, Brian M.; Tsukayama, Eli; Park, Daeun; Yu, Alisa; Duckworth, Angela L. – Developmental Psychology, 2020
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…
Descriptors: Metacognition, Well Being, Emotional Development, Middle School Students
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Osgood, D. Wayne; Ragan, Daniel T.; Dole, Jenna L.; Kreager, Derek A. – Developmental Psychology, 2022
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.…
Descriptors: Adolescents, Friendship, Peer Relationship, Social Influences
Zimmer, Ron; Gill, Brian; Booker, Kevin; Lavertu, Stephane; Sass, Tim R.; Witte, John – RAND Corporation, 2009
The first U.S. charter school opened in 1992, and the scale of the charter movement has since grown to 4,000 schools and more than a million students in 40 states plus the District of Columbia. With this growth has also come a contentious debate about the effects of the schools on their own students and on students in nearby traditional public…
Descriptors: Charter Schools, Research Methodology, Probability, Student Characteristics