A study examined the role of prior knowledge in teacher-generated analogies and student-generated analogies that convey the concept of protein synthesis. Subjects were 269 eighth-grade students enrolled in a public school district in a northern suburb of Chicago, Illinois. Subjects were divided into groups that received traditional instruction,…

A study involving 120 undergraduate students attending the University of St. Thomas in St. Paul (Minnesota) was undertaken to test the interactive effect of instructional strategy (structured versus constructed) with learner's prior domain knowledge in concept acquisition. Previous instructional design research on concept learning has focused on…

Eighteen naval fire technicians served as subjects in a study using scenarios to simulate a real world task for assessing the readability of general technical texts. The scenario asked subjects to read a segment of text and to explain to a colleague how the particular component described in the passage functioned. Subjects' summaries were assessed…

Examined the factual accuracy of youngsters' knowledge about older people and the moderating effect on knowledge level resulting from differences in age/education, sex, racial origin, and experience living in a household with an older person. Findings revealed a negative bias toward older people by all three age/educational level groups. (Author)

Two findings serve as the hallmark for hemispheric specialization during lateralized lexical decision. First is an overall word advantage, with words being recognized more quickly and accurately than non-words (the effect being stronger in response latency). Second, a right visual field advantage is observed for words, with little or no…

This study examined practices of teachers in Wake County Public Schools' (WCPSS) middle school Algebra I classes. Regression analyses of standardized state testing results allowed for identification of the most effective and least effective Algebra I teachers. The study used surveys, observations, and focus group interviews to compare and contrast…

Using a semantic mapping technique for vocabulary instruction, a study explored how children of diverse groups bring different cultural backgrounds and prior knowledge to tasks involved in learning new words. The study was conducted in three sixth-grade classrooms--one containing rural Native American (especially Menominee) children, another…

Describes two experiments that investigated the effects of two thematic retrieval cues on the types of information recalled from short stories by elementary school children and adults. Shows adults and fourth graders, but not younger children, spontaneously generated thematic retrieval plans which enabled them to remember information from both…

Compares kindergartners' and third and sixth graders' understanding of an illusion reported by the philosopher John Locke, in which two hands simultaneously experience two different temperatures from a container of water at one temperature. (HOD)

Examines the effect of refutation text structure (text that contrasts correct ideas with incorrect ones) on students' misconceptions of Newtonian mechanics, noting that refutation text is efffective in getting students to change their prior misconceptions. Also suggests two ways to help students abandon misconceptions that are not refuted in a…

Examines the relation between background knowledge and second language (L2) proficiency in L2 reading performance in two groups of university learners of English, one from mainland China and one from Hong Kong. Results show a strong cultural effect on reading comprehension, but not on post-intermediate readers. Findings have implications for…

Describes a study of undergraduates that was conducted to determine students' preferences toward Graphical User Interface versus Command Line Interface during computer-assisted instruction. Previous experience, comfort level, performance scores, and student attitudes are examined and compared, and the computer use survey is appended. (Contains 13…

Reviews previous research to compare the instructional effects of multiple-try feedback (MTF) forms to single-try feedback forms and no feedback in both traditional and in computer-based instruction. Interaction between students' prior knowledge and the number of feedback trials is examined, and future MTF research is suggested. (Contains 59…

A change in curriculum permitted a direct and simultaneous comparison between first and second year responses to group project work while assuming similar prior experience with this method of learning. Responses were obtained by a survey form and by meetings with individual groups. Overall, there were no differences between first and second year…

In the last 2 decades, the United States has seen an increase in childlessness and first births at older ages. Using the National Survey of Family Growth, we focus on women aged 35-44 who are voluntarily childless (expect no children and are fecund or contraceptively sterile). We compare these women to those who are involuntarily childless…