This paper is concerned with the synthesis and analysis of S-P sub-tables for learning diagnosis. Two methods are presented for partitioning a given S-P table into several S-P sub-tables so that they have highly reproducible Guttman scales. Using these S-P subtables, some applications for learning diagnosis and evaluation are discussed. The relations between a criterion in the methods and several coefficients of S-P sub-tables are also presented.
A descriptive model of human information purchasing behavior in optional stopping and sequential decision task has been presented by Edwards. From the results of post erior probability estimation experiments, he assumed that the subject replaces Eθ(Z)with Eθ(Z′)=ωEθ(Z)in the optimal conditions of maximizing the expected value, where Eθ(Z)is the expected value of log-likelihood ratio for an observation data and ω is an inefficiency parameter. The value of ω is assumed to lie between0and1.However the model does not satisfy the condition(E(n/d))in the data generating process. Then a revised model is presented in this paper. As a result of examining the fitness of the data from the experiments reported by Wallsten and by others to the revised model, the author found and assumed that the condition of ω used in the model is greater than 1 to obtain better fit the experimental results, while Edward spostulated that ω<1. Finally the relevance of the model is discussed.
The efficiency of two kinds of block appointment system for the following-up patient clinic was analyzed using an emulation technique. The data were obtained from the survey in Osaka Adult disease Center. In the system[A], scheduled patients are consulted in the sequence of arrival, but the priority of scheduled patients who arrive late is made lower than that of unscheduled patients. In the system[B], the sequence of consultation is fixed by the appointment table, but scheduled patients who are late will be consulted by the order of arrival and will not have lower priority than unscheduled patients. The advantages of the system[B]were suggested in the emulation studies.
One of the general health questionnaires, the Todai Health Index(THI), developed by S. Aoki et al. in 1974, is composed of 130 questions concerning subjective symptom, mental health, personality, health habit and the ones to check the reliability of the answered THI. Twelve scale scores are available from THI which tell the pattern of complaint and personality, and are able to identify psychosomatics from normals by Fisher's discriminant function. The authors applied THI to the several groups of psychiatric outpatient who had been definitely diagnosed by psychiatrists to be neurosis(52patients), schizophrenia(37), depression(16), epilepsia(15)and maina(3), and characteristic patterns were analysed of the 12 scale scores in the respective patient group. Two discriminant functions were obtained and they proved to identify 42 out of 52 clinical neurotics as it and 30 out of 37 clinical schizophrenics as it. The method of forward selection by means of Mahalanobis generalized distance was also applied for the identification of the two patient groups.
Usually, writing pressures indicate the characteristics of the physique and the personality by strength and weakenss of the writing pressures or by the form of the curves. Results are classified into five types by a personality inventory, which are Zyklothymie, Epilepsie, Schizothymie, Neurasthenia and Hysteria. The author intends to consider the relationship between these personality types and the writing pressures. In the present paper, the author has attempted to classify the personality types by the numbers of zero crossing points of the autocorrelation function and by the form of the power spectral function of the data of the writing pressures.
This paper investigates, by virtue of Monte Carlo technique, the degree to which the same alternative is respectively selected under each of a couple of certain simple voting rules. Our study is motivated from P.C. Fishburn's: Simple Voting Systems and Majority Rule(1974), besides relying not on the estimated efficiency as defined there but on the probability of agreement. And, for beginner's sake, our concise introduction to(or survey of)the problem of constitutional choice will be given in suitable passages of the text.