An introductory textbook on psychological tests and measurements is presented in paper back booklet form. The style is informal and humorous, and the book is intended to appeal to the contemporary student. Ten chapters constitute the text: (1) On Measurement and Existence; (2) A Brief, Imprecise History of Psychological Testing; (3) The Creation…

It has been argued that item variance and test variance are not necessary characteristics for criterion-referenced tests, although they are necessary for norm-referenced tests. This position is in error because it considers sample statistics as the criteria for evaluating items and tests. Within a particular sample, an item or test may have no…

This paper presents an index of goodness-of-fit for comparing m models over n trials. The index allows for differentiated weighting of the trials as to their importance in the comparison of the models. Several possible weighting schemes are suggested and the conditions on the weights which assure asymptotic normality of the index distribution are…

This paper presents the development of scoring functions for use in conjunction with standard multiple-choice items. In addition to the usual indication of the correct alternative, the examinee is to indicate his personal probability of the correctness of his response. Both linear and quadratic polynomial scoring functions are examined for…

A number of different ways of ascertaining whether or not a test measures the same thing in different cultures are examined. Methods range from some that are obvious and simple to those requiring statistical and psychological sophistication. Simpler methods include such things as having candidates "think aloud" and interviewing them about how they…

Discusses words in statistical theory and practice with emphasis on the reality that words get short shrift in most statistical teaching and exposition. Uses common misuse of statistical words as example. (Author/RK)

The author outlines some of the ways in which published mathematics tests, particularly the general standardized type, can be used in a constructive way by teachers to learn more about their pupils. (MN)

Issues concerning equating test scores are discussed in an introduction, four papers, and two commentaries. Equating methods research, sampling errors, linear equating, population differences, sources of equating errors, and a circular equating paradigm are considered. (SLD)

The regression-discontinuity design (RDD) offers the possibility of making inferences about causal effects from observations on selected groups. Data from such a design are considered to have a truncated bivariate distribution. For the RDD, maximum likelihood parameter estimation procedures and tests of hypotheses are presented. (Author/BW)

Compares three methods of analyzing pairwise treatment differences in a multi-treatment experiment via computer simulation techniques. Under the equal n condition, the robustness of the conventional Tukey Wholly Significant Difference test (WSD) to heterogeneous variances was contrasted with two alternate techniques. Under unequal n conditions,…

Procedures to be applicable in situations in which large numbers of individuals are tested or in situations where multiple measures are taken. (Author/CB)

Paper is concerned with the hypothesis that two variables have a perfect disattenuated correlation, hence measure the same trait except for errors of measurement. (Author/RK)

Paper is concerned with the effect that ipsative scoring has upon a commonly used index of between-subtest correlation. (Author)

This paper proposes a general model for free-response data collected for measuring a specified unidimensional psychological process; systematizes situations which vary with respect to the scoring level of items; and finds out general conditions for the operating characteristic of an item response category to provide a unique maximum likelihood…