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Han, ZhaoHong, Ed. – Multilingual Matters, 2019
This volume sheds empirical light on Complex Dynamic Systems Theory (CDST) by providing five sets of analyses of two longitudinal, interactional datasets, involving two dyads exchanging emails over one academic semester. The collective study on CDST is the first of its kind, in that it delves into multiple subsystems of learner language,…
Descriptors: Profiles, Second Language Learning, Second Language Instruction, Systems Approach
Ainsworth, Mary Salter – 1974
This intensive longitudinal study of mother-infant interaction during the first year of life focuses on the development of attachment. Data on 26 middle-class families were collected by five methods: (1) naturalistic observation of each mother-infant pair during 4-hour home visits, which occurred at 3-week intervals from the infants' 3rd to 54th…
Descriptors: Attachment Behavior, Cognitive Development, Day Care, Home Visits
Barclay, James R. – 1978
This study investigates the effects of alternate types of curriculum and counseling treatment on elementary school children categorized into six temperament-attitude clusters. Through a second-order factor analysis of a multi-trait multi-source assessment instrument (The Barclay Classroom Climate Inventory), six cluster groups of characteristics…
Descriptors: Achievement Rating, Analysis of Covariance, Classroom Environment, Cluster Grouping