The Early Start Denver Model (ESDM) is an intervention program recommended for pre-schoolers with autism ages 12-48 months. The rationale for this recommendation is the potential for intervention to affect developmental trajectories during early sensitive periods. We investigated outcomes of 32 children aged 18-48 months and 28 children aged…

Predictions derived from the interactive activation (IA) model were tested in 3 experiments using the masked priming technique in the lexical decision task. Experiment 1 showed a strong effect of prime lexicality: Classifications of target words were facilitated by orthographically related nonword primes (relative to unrelated nonword primes) but…

The spelling of words in English is governed in part by the morphemes that make them up. This study examines the strength of children's knowledge of the role of root morphemes in spelling, specifically focusing on whether it can withstand interference by phonological changes. A total of 75 children between seven and nine years of age were given…

Using Locke's 1983 model, analyzes one tendency, consonant use in babbling and early words, and phonological word-selection patterns in 10 children, aged 8 to 16 months. Individual differences were found in all three domains analyzed, with some increase in uniformity across subjects with increasing knowledge of language. (Author/SED)

Students--516 male and 475 female 11th and 12th graders in Ottawa (Canada)--completed academic self-concept scales from three different instruments to test the Marsh-Shavelson model that accounts for the separation of math and verbal self-concepts. The two self-concepts are separable and should be considered so in future research. (TJH)

The three basic language learning models are the rote-memory model (prescriptive), the abilities model (behavioristic), and the critical age model. If this last model, a deterministic one based on observable facts about the human condition, becomes as popular in American schools as it is in British schools, language will become an important aspect…

A single-subject study was conducted with a language-delayed male Native American child (age 3 years, 5 months), who exhibited minimal ability to communicate verbally and relied on gesture as a primary means of communicating. In order to identify and code the child's specific communicative intentions, the Coggins and Carpenter (1981) Communication…

Infant's crying may have an important mediating role in the formation of attachment behavior. The earliest vocalizations are discussed in terms of an acoustic communications model in which the baby's vocal repertoire becomes incorporated into a closed-loop, feedback system with his mother. Certain pre-lingual "signals" may be associated with those…

The way a particular clinician judges, from data, the degree to which a child is in the category "learning disabled" was modeled on the basis of clinician's statement of the traits that comprise the handicap. The model illustrates the use of fuzzy set theory. (Author/RL)

A model for developing instructional analogies was used to produce experimental treatments that included text from a high school biology textbook to which was added extended verbal analogies written by the researcher linking each of two biology concepts to analogous familiar concepts. The control treatment was text from the biology textbook…

The question is addressed whether a child would develop a communication system if a conventional linguistic model is absent. Six congenitally deaf children, who were not exposed to Sign Language, were observed and videotaped at play in their homes at intervals of one to three months. The children ranged in age from 1 year, 5 months to 4 years, 1…

Two models were identified for criterion-referenced tests, one based on the assumption of a continuous achievement variable and the other assuming a dichotomous or binary variable. Several test characteristics were examined and contrasted for the two models, including the distribution of scores, establishment of a cutting score, test length, item…

This paper proposes a broad outline of a variable model of language development and explores several particulars of such a model in the language behavior of four two-year-old children. The process by which information about language is progressively transformed and integrated rather than merely being added together can be seen in the shifting…

A pilot study with 17 middle school science teachers at 15 schools was conducted to determine how to use interactive videodisc technology to develop student ability to use visual skills in processing science information, thereby improving science achievement. The first year's progress is described in identifying how visual images seem to affect…