Various reported measures of clustering in free recall are reviewed under categories of algebraic versus probabilistic approaches. Shortcomings in these measures are outlined and a new multi-dimensional measure is advanced which overcomes many of the deficiencies noted. (Author)

The purpose of this study was to determine the practicality of infrared photographic analysis to air pollution agencies, by the detection of plant damage from pollutants before they are visually identifiable. Results showed that photomicrographic imaging using infrared radiation should be considered a viable surveillance tool in similiar…

The Construction procedures and working drawing of an impact tester for wood or plastics materials testing. (GR)

The objectives of this study were to: (a) determine if very young children will wear an accelerometer for relatively long periods of time and comply with the protocol for its use; (b) evaluate how well a caregiver can estimate the activity level of his/her infant or toddler when completing an exposure-oriented time activity diary; and (c) compare…

The purpose of this research was to make a pilot investigation testing the feasibility of the use of the galvanic skin response (GSR) as a useful instrument to increase the sensitivity of counselors to their clients. The technique could reduce the amount of direct staff assistance needed in the training program. (Author/BY)

The instrumental method for detecting total organic carbon (TOC) in water samples is detailed. The method's limitations are discussed and certain precautions that must be taken are emphasized. The subject of TOC versus COD and BOD is investigated and TOC is determined to be a valid indication of biological demand. (BT)

This discussion gives a general picture of the instrumentation available or being developed for measuring the four major categories of water pollutants: metals, nutrients, pesticides and oxygen demand. The instruments are classified as follows: manually operated laboratory analyzers, automated laboratory instrumentation, manual field monitors, and…

Prepared for use with Research for Better Schools' career education programs, this guide is designed to assist in the selection of instruments which measure program goals. The guide provides descriptions of ten instruments: (1) student demographic data questionnaire, (2) career maturity inventory, (3) assessment of career development, (4)…

This text, a revision and extension of the first three editions, consists of papers discussing the basic considerations in sampling air for specific purposes, sampler calibration, systems components, sample collectors, and descriptions of air-sampling instruments. (BT)

There are no differences between volunteers and nonvolunteers among subjects who completed questionnaires on sexual behaviors. However, as compared to nonvolunteers, volunteers who participated in further research reported more liberal sexual attitudes. Data does not support view that recent changes in sexual behavior are reflection o changes in…

The assistive technology (AT) field acknowledges that different stakeholders vary in their perspectives of service delivery outcomes. While the literature delineates consumers, caregivers and providers as stakeholders with distinct views, very little research documents these unique perspectives. This study reports on the perspectives of (a)…

Discusses reasons for questioning the underlying assumptions of instruments designed to measure knowledge of the nature of science. Recommends that researchers recognize that conflicting models of science exist, and that each instrument related to these models must specify all philosophic assumptions. (MLH)