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Direct linkRispoli, Matthew – Language Acquisition: A Journal of Developmental Linguistics, 2016
This article investigates the relationship between third person singular present tense agreement morphemes, copula "is" and verb-"s", at 2;00 and 2;03. Language samples from 60 children at 2;00 were analyzed for the productivity of copula "is" as measured by the number of different morphemes preceding "is"…
Descriptors: Grammar, Verbs, Young Children, Vocabulary
Download full textUnlu, Fatih; Bozzi, Laurie; Layzer, Carolyn; Smith, Arthur; Price, Cristofer; Hurtig, Richard – Society for Research on Educational Effectiveness, 2013
In experimental studies, researchers are often interested in secondary research questions that explore important aspects of main findings, such as whether or not program effects vary according to the level of fidelity in which the program has been implemented; or according to the dosage received by individuals participated in the program. In this…
Descriptors: Fidelity, Program Implementation, Randomized Controlled Trials, Research Problems
