The purpose of this study was to assess Welford's dual controlling factor interpretation of Fitts' Law--describing movement time as being a linear function of movement distance (or amplitude) and the required precision of the movement (or target width). Welford's amplification of the theory postulates that two separate processes ought to be…

The problem of physical disability is growing as modern technology rises due to a combination of increased injury rates and improved medical techniques, resulting in a rapidly growing number of surviving disabled persons. Despite the increasing incidence of disability, unnecessary physical barriers which exist throughout our society prevent…

The Materials and Activities for Teachers and Children (MATCH Box) project was developed in 1965 to provide for the relatively intensive treatment of a subject over a short period through materials geared to the elementary school level. Each MATCH Box contains materials, equipment, and activities that work together to foster the teaching/learning…

The monograph presents four papers on the significance of the physical environment in residential facilities for retarded individuals which describe initial efforts to improve the physical characteristics of an institution serving a severely and profoundly retarded, as well as multiply handicapped, population. R. Scheerenberger considers the…

This booklet, the first of a projected series related to the development of methodologies and techniques for environments planning and design, examines three approaches that are currently being used to identify, analyze, and evaluate the natural and man-made resources that comprise the physical environment. One approach by G. Angus Hills uses a…

This report contains one of the first procedures available to environmental impact statements. The heart of the system is a matrix which is general enough to be used as a reference checklist or a reminder of the full range of actions and impacts on the environment that may relate to any proposed action. This comparatively simple system is intended…

This study examined the relationship between infants' early physical environment and their subsequent performance on the Stanford Binet Intelligence Scale. A total of 23 infants were observed twice a month in their own homes starting at 12 months of age and continuing through 24 months of age. These observations were subsequently coded into 30…

The article describes the classroom of a sixth grade teacher who uses an individualized curriculum and provides an unusual visual and physical environment. (CD)

Eleven classrooms for hearing impaired children were evaluated with respect to noise levels and acoustic treatment to minimize reverberation. (LS)

Presents an outline of the chemistry involved and the steps which are being taken to gain a better understanding of the stratosphere. Chemical composition of natural stratosphere and depletion of ozone in the stratosphere by man-made pollutants are covered. (HM)

An examination by a French lexicologist of four terms current in ecological movements: "ecologie,""environnement,""qualite de vie," and "ambiance." For each term, several French and English dictionary definitions are given and clarifying distinctions are made. In conclusion, four composite definitions are given. (Text is in French.) (AMH)

The old system of licensing within the different sectors of the society in Norway is in the process of being incorporated into a system of total natural resource planning and regulation. This article outlines comprehensive physical and economic water pollution management plans for the municipality, the county, and the state. (Author/MA)

The study evaluated the consistency of goodness-of-example ratings by 27 orientation and mobility (OM) instructors for photographs depicting five environmental concepts (curb, hallway, intersection, shoreline, sidewalk). Results, which were highly consistent across raters, are discussed in relation to design instructional and directions for future…

Presents an overview of: (1) the institutional context of the environmental pollution sector of environmental quality management (EQM); accomplishments and problems in some representative subsectors (including water quality, soil erosion, air quality, and hazardous wastes); and (3) future prospects. Also considers role of government and…