This article reviews previous studies of the effects of implicit and explicit corrective feedback on SLA, pointing out a number of methodological problems. It then reports on a new study of the effects of these two types of corrective feedback on the acquisition of past tense -ed. In an experimental design (two experimental groups and a control…

This study explored the effects of a full-day preschool program on 4-year-old children. The study compared the development of a group of children (N = 403) who attended the preschool program on a half-day basis during the 1999-2000 school year (the last year the half-day program was in place) with the development of a group of children (N = 418)…

The regression-discontinuity approach to evaluating educational programs is reviewed, and regression-discontinuity post-program mean differences under various conditions are discussed. The regression-discontinuity design is used to determine whether post-program differences exist between an experimental program and a control group. The difference…

The relationship between learning to program at a construct level and learning and study strategies was studied for college students enrolled in a beginning Pascal programing course and a calculus course (four sections of the programing course and two of the mathematics course). For both the experimental group (n=42) and the first control group…

Previous studies indicate that only 6 percent of the nation's population possess the minimum level of understanding of science and technology needed to function minimally as citizens and consumers. Many educators speculate that scientific illiteracy originates in elementary school classrooms, not from intellectual inferiority, but rather from…

In this article, the author describes a new instructional design model and how it was applied to an educational planning and evaluation graduate class. The model is known as the "Isman model" and is described a five-step systematic planning process: (1) input; (2) process; (3) output; (4) feedback; and (5) learning. This process can be…

The aim of this study was to incorporate a web-assisted program to normal traditional classroom instruction and study about students' misconceptions in force and motion concepts in physics. The Web-based physics program was incorporated with the traditional lecture. Specifically, 30% of class time was allocated for using this tutorial program, and…

Undergraduate students in sociology (N=59) and psychology (N=50) participated in a study at a large midwestern university to determine if the pattern of attributional assignment, expectancy, performance, and perceived success was different in these two groups of undergraduates. Prior to taking the first of three exams each student was asked how…

Studies have shown that it is difficult for people to deal with multicriteria decision-making situations. Information technology tools such as decision-support systems and expert systems have been developed in order to help them in such situations. Another tool that has been identified as helping managers understand complex engineering…

To support the integration of technology in the K-12 special and general education classroom, especially for students with disabilities, teachers must be experienced in the application of technology to curriculum. Professional development programs continue to provide opportunity, but often do not result in teacher proficiency in the integration of…

The purpose of this study was to investigate the effect of selected science experiences on fourth-grade students' concepts of Piagetian physical causality, namely, animism and dynamism. Vocabulary ability and Piagetian developmental stages were assessed by the "Concept Assessment Kit Conservation" and "Metropolitan Achievement…

This study investigates biracial learning teams and cross-racial friendship and interaction in desegregated junior high schools. Subjects were 424 seventh and eighth grade students in twelve English classes (164 of them black, 256 white, and 4 Asian). Each of five teachers taught 1-2 experimental classes and 1-2 control classes for ten weeks.…

MEMBERS OF THE EVALUATION SECTION OF HARVARD PROJECT PHYSICS, DESCRIBING WHAT IS SAID TO BE THE FIRST ATTEMPT TO SELECT A NATIONAL RANDOM SAMPLE OF (HIGH SCHOOL PHYSICS) TEACHERS, LIST THE STEPS AS (1) PURCHASE OF A LIST OF PHYSICS TEACHERS FROM THE NATIONAL SCIENCE TEACHERS ASSOCIATION (MOST COMPLETE AVAILABLE), (2) SELECTION OF 136 NAMES BY A…

Presented are the summary, conclusions, and recommendations after two years of the Experimental Freshman Year Program for underachieving high school graduates at Southern Illinois University. Findings are presented under four headings--(1) subjects' occupation or whereabouts in the year following their participation in the program, (2) retention…

This chapter outlines the procedures followed in an experimental program for low-achievers during their freshman year at Southern Illinois University. Specifically described are the experimental design, selection of subjects, and the treatment according to the experimental, control, and norm groups. In addition, the sample group is described in…