A recent study (Blair and Higgins, 1980) indicated a power advantage for the Wilcoxon W Test over student's t-test when calculated from a common mixed-normal sample. Results of the present study indicate that the t-test corrected for outliers shows a superior power curve to the Wilcoxon W.

Presents algorithms for the simulation and motion display of the three basic kinematic devices: (1) four bar linkages; (2) the slider crank; and (3) the inverted slider crank mechanisms. The algorithms were implemented on a Commodore-VIC 20 microcomputer system with 6500 bytes of available memory. (Author/JN)

Describes a project begun as an attempt to see if it was possible to exchange meaningful messages in natural English with a machine and whether this could aid acquisition. The result is a group of dialog-stimulator programs which generate guestions, find answers to questions, obey commands, and assimilate new knowledge. (SED)

Presents four probability problems, their simulations, and analyses. The first illustrates a discrete situation for which it is possible to list the sample space. The second and third are continuous--the number of possible outcomes is infinite. The last is discrete with a surprising continuous extension question which leads to l/e. (JN)

Reports survey results on statistical characteristics and adequacy of random number generators on microcomputers. Cycle size, seed, and operational time considerations, and statistical tests examining validity of generators are discussed. Evaluations of software for specific microcomputers are presented. Experiments which demonstrate dangers of…

Describes instructional use of a microcomputer version of the WORLD2 global population-ecology simulation. Reactions of students and instructors are discussed and a WORLD2 simulation assignment is appended. The BASIC version used by the author runs on Apple II, DOS 3.3, with 80 column board. (MBR)

Shows how a university utility building ("boiler house") is used in a chemical engineering course for computer simulations, mathematical modeling and process problem exercises. Student projects involving the facility are also discussed. (JN)

Two computer programs are given to provide simulations, for any value of n, to keep count of the frequency of the first significant digit. (MNS)

Explains how school planners can use microcomputers to create electronic spreadsheets that reduce the time required to calculate educational specifications. (MLF)

The present study compares the robustness of two different one way fixed-effects analysis of covariance (ANCOVA) models to investigate whether the model which uses a test statistic incorporating estimates of separate unequal regression slopes is more robust than the conventional model which assumes the slopes are equal. (Author/BW)

Describes an educational microcomputer gaming system for dealing with the acid rain problem in Western Europe and discusses its objectives, rules, problems, and future perspectives. Usefulness of gaming as an operational aid in formulating appropriate energy policies worldwide is emphasized. (MBR)

Discusses a computer simulation which: (1) describes an experiment investigating F=m/a; (2) generates data; (3) allows students to see the data; and (4) generates the equation with a least-squares fit. (JN)

Describes three computer programs which operate on Apple II+ microcomputers: (1) a menu-driven graph drawing program; (2) a simulation of the Millikan oil drop experiment; and (3) a program used to study the half-life of silver. (Instructions for obtaining the programs from the author are included.) (JN)

Presents a system that permits students to engage directly in the process of modelling and to learn some important lessons about models and classes of models. The system described currently runs on RML 380Z and 480Z, Apple II and IIe, and BBC model B microcomputers. (JN)

The author emphasizes the importance of understanding the value of computer technology in special education, specifically in developing expressive and receptive language, in providing opportunities for real-life problem-solving experiences through simulations, in facilitating basic functioning, and in providing recreational alternatives.…