Describes a program written in VS BASIC which was created for the online tabulation, summarization, and display of information on collection size for an academic library and compares its performance with that of SAS (Statistical Analysis System). Nine figures compare tables produced by the two systems, and two references are given. (RAA)

Factor analysis programs in SAS, BMDP, and SPSS are discussed and compared in terms of documentation, methods and options available, internal logic, computational accuracy, and results provided. Based on these comparisons, preferences for SAS and against SPSS factor analysis programs are recommended. (Author/JKS)

The superior program proved to be suprogram PROB published by the National Bureau of Standards. (Author)

Through Monte Carlo procedures, three different techniques for estimating the parameter theta (proportion of the "shocks" remaining in the system) in the Integrated Moving Average (0,1,1) time-series model are compared in terms of (1) the accuracy of the estimates, (2) the independence of the estimates from the true value of theta, and…

In addition to reviewing the characteristics of document processing systems, this paper pays considerable attention to the description of a system via a feature list approach. The purpose of this report is to present features of the systems in parallel fashion to facilitate comparison so that a potential user may have a basis for evaluation in…

Prior use of the equipercentile method of test equating was based on a graphic procedure which is tedious, subject to smoothing errors, and non-analytical. Recognition of the equipercentile method as a curve-fitting procedure for two cumulative percentage distributions leads to a proposed analytical solution to the problem through use of linear…

In this follow-up study, an examination of the level of awareness of and knowledge about the Emergency Medical Services System in Region J of North Carolina was made to detect any changes from the earlier survey which might be due to a six-month campaign publicizing the system. To further pinpoint the channels through which the citizens of the…

This report delineates the theory and terminology of data compression. It surveys four data compression methods--null suppression, pattern substitution, statistical encoding, and telemetry compression--and relates them to a standard statistical coding problem, i.e., the noiseless coding problem. The well defined solution to that problem can serve…

The aim of the CYCLOPS Project research is the development of techniques for allowing computers to perform visual scene analysis, pre-processing of visual imagery, and perceptual learning. Work on scene analysis and learning has previously been described. The present report deals with research on pre-processing and with further work on scene…

This three-part report provides the findings of a survey of 999 two-year colleges to determine their computer-related expenditures and seeks to facilitate inter-institutional comparisons of these data. The introduction outlines the purpose of the study, key findings, methodology, and limitations. The second section instructs personnel at…

This report is the first in a series of energy use studies intended to provide real life examples of the implication of energy conservation practices. Research reports from five public school districts describing their methods of measuring and conserving energy are summarized. While investigating the responses of various school districts to the…

This Manual has been designed to provide step-by-step guidelines for conducting an evaluation of a structured training sequence. The assessment design to be presented involves essentially: the testing of a group of trainees before and after a sequence of instruction by administration of the same set of objective-form items under structured testing…