One perennially important question for theories of sentence comprehension is whether the human sentence processing mechanism is "parallel" (i.e., it simultaneously represents multiple syntactic analyses of linguistic input) or "serial" (i.e., it constructs only a single analysis at a time). Despite its centrality, this question…

Models are central to the practice and teaching of science. Yet people often fail to grasp how scientific models explain their observations of the world. Realizing the explanatory power of a model may require aligning its relational structure to that of the observable phenomena. The present research tested whether "relational…

This paper examines preservice teachers negotiating and making sense of a particular policy, the Massachusetts' Rethinking Equity and Teaching for English Language Learners (RETELL). It addresses the following questions: First, what do preservice teachers know about policy in general and the RETELL language policy in particular? Second, how do…

Plural phrases are open to many interpretations in English, where cumulative interpretations of noun and verb phrases are possible without any disambiguating morphology. A sentence like "Every week, the high school kids went to the movies or the ballgame" might involve quantifying over multiple occurrences of a single scenario, in which…

The present studies examined whether implied tactile properties during language comprehension influence subsequent direct tactile perception, and the specificity of any such effects. Participants read sentences that implicitly conveyed information regarding tactile properties (e.g., "Grace tried on a pair of thick corduroy pants while…

Recent research on moment-to-moment language comprehension has revealed striking differences between adults and preschool children. Adults rapidly use the "referential principle" to resolve syntactic ambiguity, assuming that modification is more likely when there are 2 possible referents for a definite noun phrase. Young children do not.…

Linguistic dependencies between non-adjacent words have been shown to cause comprehension difficulty, compared with local dependencies. According to one class of sentence comprehension accounts, non-local dependencies are difficult because they require the retrieval of the first dependent from memory when the second dependent is encountered.…

Behavioral investigations of the acquisition of "some" have shown that children favor its logical interpretation ("some and possibly all"). Adults, however, use the pragmatic interpretation ("some but not all") derived by a scalar implicature. Certain experimental manipulations increase children's rates of adult-like…

While there have been recent efforts to improve the overall public education system in the United States, American students continue to graduate from U.S. public high schools with limited knowledge of U.S. history (Ravitch, 1988; Evans, 2004; Ross, 2006; St. Jarre, 2008; Dillon, 2011). This qualitative case study investigated how high school…

The purpose of this study was to determine whether or not decreased articulation of speech played a role in the ability of an individual with Down syndrome or Fragile X syndrome to signal noncomprehension and whether the two groups differed in their levels of articulation of speech and noncomprehension signaling ability. The research was conducted…

Although confusion is generally perceived to be negative, educators dating as far back as Socrates, who asked students to question assumptions and wrestle with ideas, have challenged this notion. Can confusion be productive? How should instructors interpret student expressions of confusion? During two semesters of introductory physics that…

We describe activities created to help student participants in Project ITEAMS (Innovative Technology-Enabled Astronomy for Middle Schools) develop a deeper understanding of picture elements (pixels), image creation, and analysis of the recorded data. ITEAMS is an out-of-school time (OST) program funded by the National Science Foundation (NSF) with…

Recent research suggests that a major obstacle to evolution understanding is an essentialist view of the biological world. The present study investigated the effects of formal biology instruction on such misconceptions. Participants (N = 291) completed an assessment of their understanding of six aspects of evolution (variation, inheritance,…

The primary goal of the study presented in this dissertation is to describe 11th-graders' understandings, through different representations, of: (1) the definition of function, (2) the production of a function, and (3) the interpretation of a function. In addition, this dissertation seeks to describe the relationship between 11th-graders' scores…

Greenfield Center School (GCS) students have a long history of engaging in meaningful projects as the culmination of their studies. Once students have completed these projects, they own their learning; they understand it deeply and can explain how it relates to themselves as well as to their community. The process of showing one's understandings…