Reply to Dunnette's "Comments on Abrahams and Alf's 'Pratfalls in moderator research'."

Discusses M. Dunnette's (see PA, Vol. 49:Issue 1) comments on moderator techniques and shows that they are only partly correct because of their total reliance on improvements in hit rate. Instances are discussed in which it would seem hazardous to rely solely on empirical results in evaluating a moderator technique, while dismissing conceptual arguments based on methodological flaws. Limitations of his revision of quadrant analysis are discussed. Dunnette's further suggestion for completely removing the bias is shown to be theoretically impossible. Finally, the value of his 2-stage strategy is reduced considerably as a result of incomplete use of data but may, in some cases, improve prediction. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

OLYMPUS a standard control and utility package for initial-value FORTRAN programs

Title of program: OLYMPUS Catalogue number: ABUF Program obtainable from: CPC Program Library, Queen's University of Belfast, N. Ireland (see application form in this issue) Computer: ICL 4–70; Installation: UKAEA Culham Laboratory Operating system: ICL Multijob Programming languages used: STANDARD FORTRAN High speed store required¹: 14464 words; No. of bits in a word: 32 Overlay structure: None No. of magnetic tapes required: None Other peripherals used: Line printer No. of cards in combined program and test deck: 2425 Card punching code: EBCDIC     

Changes in perceptual, motor and reading test scores in a remedial reading group.

Two matched groups each composed of nine children with reading problems were compared on a number of perceptual, motor, and reading tests. One group was thereafter exposed to a special remedial program. On retest this group showed significant gains in reading as well as in some of the perceptual and motor areas. No similar improvement was detected in the control group denied the remedial treatment. Not all perceptual tests showed a parallel improvement with reading and the implications of this finding are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Psychological problems relevant to business and industry.

Psychologists' interest in problems related to industry has grown phenomenally over the past 10 years. Within the area of industrial psychology 3 subfields are distinguished: personnel psychology, developing out of the tradition of individual differences; human engineering, developing out of applied experimental psychology; industrial social psychology, developing from social-psychological theory. Each of these subareas are examined in the light of their conceptual history and the research problems they have raised. 98 refs. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Methodological issues in P technique.

The P technique is a multiple time series in which observations are taken in a definite time series and usually consists of measures which are not independent. This lack of independence creates statistical problems which are examined. Much work is needed on the fundamental theory of analysis of multiple time series. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Some recent results in the analysis of greedy algorithms for assignment problems

We survey some recent developments in the analysis of greedy algorithms for assignment and transportation problems. We focus on the linear programming model for matroids and linear assignment problems with Monge property, on general linear programs, probabilistic analysis for linear assignment and makespan minimization, and on-line algorithms for linear and non-linear assignment problems.This is an expanded version of a survey lecture presented at the DGOR/NSOR Symposium, Amsterdam, 1993     

A numerical conformal mapping method for harmonic mixed boundary value problems

We describe a simple and versatile technique for the numerical solution of harmonic mixed boundary value problems in simply-connected domains. This technique is based on the theory of Riemann-Hilbert problems, and involves only the use of already existing conformal mapping and quadrature routines.