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Mäkelä, Tiina E.; Peltola, Mikko J.; Nieminen, Pirkko; Paavonen, E. Juulia; Saarenpää-Heikkilä, Outi; Paunio, Tiina; Kylliäinen, Anneli – Developmental Psychology, 2018
Fragmented sleep is common in infancy. Although night awakening is known to decrease with age, in some infants night awakening is more persistent and continues into older ages. However, the influence of fragmented sleep on development is poorly known. In the present study, the longitudinal relationship between fragmented sleep and psychomotor…
Descriptors: Infants, Correlation, Psychomotor Skills, Sleep
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Ben Kenward; Felix-Sebastian Koch; Linda Forssman; Julia Brehm; Ida Tidemann; Annette Sundqvist; Carin Marciszkom; Tone Kristine Hermansen; Mikael Heimann; Gustaf Gredebäck – Developmental Psychology, 2017
Saccade latency is widely used across infant psychology to investigate infants' understanding of events. Interpreting particular latency values requires knowledge of standard saccadic RTs, but there is no consensus as to typical values. This study provides standard estimates of infants' (n = 194, ages 9 to 15 months) saccadic RTs under a range of…
Descriptors: Reaction Time, Infant Behavior, Infants, Adults
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Peets, Kätlin; Pöyhönen, Virpi; Juvonen, Jaana; Salmivalli, Christina – Developmental Psychology, 2015
This study examined whether the degree to which bullying is normative in the classroom would moderate associations between "intra"- (cognitive and affective empathy, self-efficacy beliefs) and "inter"personal (popularity) factors and defending behavior. Participants were 6,708 third- to fifth-grade children (49% boys;…
Descriptors: Bullying, Social Attitudes, Student Behavior, Empathy
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Silinskas, Gintautas; Kiuru, Noona; Aunola, Kaisa; Lerkkanen, Marja-Kristiina; Nurmi, Jari-Erik – Developmental Psychology, 2015
This study investigated the longitudinal associations between children's academic performance and their mothers' affect, practices, and perceptions of their children in homework situations. The children's (n = 2,261) performance in reading and math was tested in Grade 1 and Grade 4, and the mothers (n = 1,476) filled out questionnaires on their…
Descriptors: Homework, Mothers, Parent Child Relationship, Academic Achievement
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Kiuru, Noona; Aunola, Kaisa; Lerkkanen, Marja-Kristiina; Pakarinen, Eija; Poskiparta, Elisa; Ahonen, Timo; Poikkeus, Anna-Maija; Nurmi, Jari-Erik – Developmental Psychology, 2015
This study examined cross-lagged associations between positive teacher and peer relations and academic skill development. Reading and math skills were tested among 625 students in kindergarten and Grade 4. Teacher reports of positive affect toward each student and classmate reports of peer acceptance were gathered in Grades 1-3. The results…
Descriptors: Peer Relationship, Teacher Student Relationship, Peer Acceptance, Prediction
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Ojanen, Tiina; Findley-Van Nostrand, Danielle – Developmental Psychology, 2014
Social goals are associated with behaviors and adjustment among peers. However, it remains unclear whether goals predict adolescent social development. We examined prospective associations among goals, physical and relational aggression, social preference, and popularity during middle school (N = 384 participants, ages 12-14 years). Agentic…
Descriptors: Social Influences, Goal Orientation, Peer Influence, Peer Relationship
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Tuominen-Soini, Heta; Salmela-Aro, Katariina – Developmental Psychology, 2014
Applying a person-centered approach, the primary aim of this study was to examine what profiles of schoolwork engagement and burnout (i.e., exhaustion, cynicism, inadequacy) can be identified in high school (N = 979) and among the same participants in young adulthood (ages ranging from 17 to 25). We also examined gender differences, group…
Descriptors: Foreign Countries, Burnout, Student Attitudes, High School Students