Two major purposes were to (1) appraise the extent to which relatively naive item writers can produce valid personality scales, and (2) compare these scales with scales derived from other strategies, particularly those employing empirical methods using an external criterion. (Author/RC)

Four criterion-referenced reliability coefficicents were compared to the Kuder-Richardson estimates and to each other. The Kuder-Richardson formulas 20 and 21, the Livingston, the Subkoviak and two Huynh coefficients were computed for a random sample of 33 criterion-referenced tests. The Subkoviak coefficient yielded the highest mean value;…

The procedure of estimating true scores by means of a transformation of the obtained score based on the reliability coefficient is compared with the use of the obtained score without transformation. Using the mean squared error as a criterion, the transformed score is a better estimate for most examinees but poorer for those whose true scores lie…

Gilman and Ferry have shown that when the student's score on a multiple choice test is the total number of responses necessary to get all items correct, substantial increases in reliability can occur. In contrast, similar procedures giving partial credit on multiple choice items have resulted in relatively small gains in reliability. The analysis…

Using the concepts of conditional probability, conditional expectation, and conditional independence, the main results of the classical test theory model can be derived in a very few steps with minimal assumptions. The present effort explores the possibility that present classical test theories can be further condensed. (Author/RC)

Psychometric characteristics of the test scores of 5,663 examinees on six patient management problem tests were studied. The total scores can be divided into subscores based on all options keyed "select" and "omit." Component scores are generally correlated negatively, as reflected in reduced discrimination indices and…

Stability of measurement of basic achievement skills in reading and mathematics was evaluated for a large special education population. Test-retest coefficients reflected adequate stability for a national sample of hearing-impaired students. The major handicapping condition of the population did not differentially affect measurement stability.…

Purpose of this study was to examine the effects of the true change-true initial score correlation on one aspect of the true simple change estimate, namely its error variance. (Authors/CB)

This study investigated the reliability and validity of the Philosophical Belief Inventory (PBI). With the exception of the relationship between idealism and pragmatism and realism and existentialism, the PBI scales appear to be assessing independent facets of belief. (Author)

This report is based on a paper presented at the annual meeting of the Educational Research Association of the New York State, Kiamesha Lake, New York, November 7, 1968

Administered the Survey of Reading Attitudes to 235 intermediate-grade students in a suburban parochial school. Results indicate the development of reading attitudes is influenced by a variety of variables, and suggests school systems should determine their own local norms for the eight dimensions measured by the survey. (Author/RC)

Ten item discrimination indices, across a variety of item analysis situations, were compared, based on the validities of tests constructed by using each of the indices to select 40 items from a 100-item pool. Item score data were generated by a computer program and included a simulation of guessing. (Author/CTM)

Extends the theoretical and practical implications of organizational climate research based upon the data from two studies, Sims and LaFollette (1975) and Litwin and Stringer (1968). (Author/RK)

The estimation accuracy of procedures based on classical test score theory and item response theory (generalized partial credit model) were compared for examinations consisting of multiple-choice and extended-response items. Analysis of British Columbia Scholarship Examination results found an error rate of about 10 percent for both methods, with…