A digital information explosion has transformed cities' residential and educational markets in ways that are still being uncovered. Although urban stratification scholars have increasingly scrutinized whether emerging digital platforms disrupt or reproduce longstanding segregation patterns, direct links between one theoretically important form of…

The California Community Colleges Chancellor's Office is pleased to present the 2021 Report on Course Section Offerings and Plans for Future Instruction for California Community Colleges. Pursuant to Senate Bill 129 (Skinner, 2021), California community college districts are required to report on the total number of course sections offered, broken…

A new design-based theory has recently been developed to estimate impacts for randomized controlled trials (RCTs) and basic quasi-experimental designs (QEDs) for a wide range of designs used in social policy research (Imbens & Rubin, 2015; Schochet, 2016). These methods use the potential outcomes framework and known features of study designs…

Background: Cluster randomized experiments that assign intact groups such as schools or school districts to treatment conditions are increasingly common in educational research. Such experiments are inherently multilevel designs whose sensitivity (statistical power and precision of estimates) depends on the variance decomposition across levels.…

A BASIC computer program was written for an experiment that measures the time of a fall of a ball-bearing dropped through a measured distance. However, the timing subroutine was written in machine language. The reason for using machine language, the machine language program, hardware used, and the experiment are discussed. (JN)

Describes: (1) a microcomputer demonstration of autocatalysis; (2) a safe alternative to ethanol and methanol; (3) a simple condenser for test-tube reactions; (4) a new procedure for studying the magnetic properties of transition metal compounds; (5) plasticization of the polymer PVC; and (6) some thoughts on polybasic acids and their salts. (JN)

This is the final report of the evaluation of Project CAUSE, a three year project to improve the laboratory portions of undergraduate physics courses at North Texas State University. The report is divided into six sections. Included in the overview are goals and purposes, the instructional format, and the evaluation plan. Demographic profiles…

Science laboratory activities within secondary science have traditionally followed prescriptive outlines both in the structure and reporting of the activity. Building on current understandings of writing to learn science strategies, a Science Writing Heuristic has been developed that encourages students to examine laboratory activities much more…

Describes: the chemical history of a pencil; a simple solar camera for measuring the sun's diameter; the experimental comparison of the thermal stability of metal carbonates; and the introduction of the concept of weight as a force to young children. A computer program listing on color mixing is also provided. (JN)

To investigate the affective and cognitive gains produced in an auto-tutorial world civilizations course, two groups of students were compared. A traditionally-taught (TT) section of 145 students and an auto-tutorially (AT) taught section of 140 were given pre- and posttests and used the same text and Modular Learning Program. The TT section…

This book is designed to provide knowledge about educational research and to help graduate students in education organize and conduct their own research. No prior familiarity with the principles, procedures, or terminology of educational research is required. Chapters are: (1) "Educational Research: Its Nature and Rules of Operation"; (2) "Types…

The Cognitive Science Laboratory of the University of Southern California has conducted a series of studies on the experimental effects of motivation on a low-stakes (to the student) standardized test. This report summarizes these studies and their results. The test in question is the National Assessment of Educational Progress (NAEP). A series of…

The emphasis on laboratory activities for science students has increased. This paper describes research that sought to determine which laboratory skills and competencies are viewed by current teachers as necessary for the preservice teacher to develop. The skills and competencies survey included 145 items in three categories (general, biological…

The land-grant colleges and universities of the United States, established by the provisions of the land-grant act of 1862, receive from this and other land-grant acts, as well as from the second Morrill Act of 1890 and the Nelson amendment of 1907, Federal funds for instruction, administration, and permanent improvements in the institutions. This…