Three topics in factor analysis are covered: a) a reliability coefficient for assessing the quality of a maximum likelihood factor analysis, b) an application of three-mode factor analysis to serial learning data, showing variations in learning curves over stages of learning and individuals, and c) the use of personal probability functions to…

Besides the ubiquitous Pearson product-moment r, there are a number of other measures of relationship that are attenuated by errors of measurement and for which the relationship between true measures can be estimated. Among these are the correlation ratio (eta squared), Kelley's unbiased correlation ratio (epsilon squared), Hays' omega squared,…

Measurement properties of the written rules tests were examined to determine their suitability for assessing driver knowledge and skill. It was concluded that the tests, as measurement tools for granting or renewing a driver's license, were not adequate. Recommendations for test improvement and a sample test copy are included. (AG)

The validity and reliability of small group research published between 1970 and 1971 is examined in this paper. In response to the small group research position which gives precedence to theory over method, the author counters that placing measurement in a secondary position increases the danger of accepting claims of experiments which contain…

The authors question Burgoon's assumption that the acquisition of grades and the achievement of course goals are highly positively correlated. The major criticisms of Burgoon's study concern use of grades as measurements of success and the nature of the experimental population. The use of grades is criticized on the grounds that disparity existed…

Data required for evaluating a Criterion Referenced Measurement (CRM) is described with a matrix. The information within the matrix consists of the "pass-fail" decisions of two CRMs. By differentially defining these two CRMs, different concepts of reliability and validity can be examined. Indices suggested for analyzing the matrix are listed with…

The subjective magnitude estimation (SME) procedure was used to obtain estimates of relative word frequency from two adult groups (15 lexicographers, 13 other adults) for 60 words ranging widely in objective frequency. Lexicographers rendered more reliable estimates, and their averaged data correlated more highly with objective log frequency than…

The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…

The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…

The United States Training and Employment Service General Aptitude Test Battery (GATB), first published in 1947, has been included in a continuing program of research to validate the tests against success in many different occupations. The GATB consists of 12 tests which measure nine aptitudes: General Learning Ability; Verbal Aptitude; Numerical…

This paper describes and evaluates a new abstract form of the Purdue Elementary Problem-Solving Inventory. The new test parallels a shortened form of the original Inventory, but presents problems verbally rather than through slides. Both forms were given to advantaged and disadvantaged second- and fourth-graders. For the total sample, the slide…

This manual describes the construction, administration and interpretation of the Course Evaluation Schedule, designed to assess students' perception of instruction. The inventory is divided into four parts; the first, designed to elicit information about the instructional modes used, is not included in the ratings. The remaining three parts…

Statistics are an essential tool for making proper judgement decisions. It is concerned with probability distribution models, testing of hypotheses, significance tests and other means of determining the correctness of deductions and the most likely outcome of decisions. Measures of central tendency include the mean, median and mode. A second…

The purpose of this study was to construct and validate a test of critical thinking ability. A preliminary form was checked for face validity by a panel of experts in reading. Item analysis of this form resulted in a final form consisting of four parts with three subscales each. This form, and tests of intelligence and general reading ability,…

It was hypothesized that unstable subject-item interactions on personality scales would be associated with small psychological distances between subjects and items. It was further hypothesized that this relationship would be more demonstrable when the psychological test was more homogeneous. To clarify the rationale of the first hypothesis, an…