The assumptions of the classical test-theory model are used to develop a theory of reliability for criterion-referenced measures which parallels that for norm-referenced measures. It is shown that the Spearman-Brown formula holds for criterion-referenced measures and that the criterion-referenced reliability coefficient can be used to correct…

More suitable criteria was needed to evaluate "mature" students or those over 21 who had not completed all senior matriculation requirements for admission to the University of Lethbridge. This study was designed to compare the performance of "mature" students and several groups of regularly admitted freshmen on the College…

The purpose of this study was to investigate the value of the academic achievement scale (AACH) which is an index of the Strong Vocational Interest Blank (SVIB). Subjects were 149 male and female students who requested help in decision making. All subjects had taken the American College Testing program examination (ACT) and the SVIB. Grade point…

This study analyzes the Object Categorization Test (OCT) and the Picture Categorization Test (PCT) to provide (1) psychometric analysis of the tests, (2) substantive analysis detailing variation in performance level as a function of age, race, class, and sex, and (3) normative data yielding frequencies of various score patterns. Data was taken…

Four selected scales from the Learning Environment Inventory (LEI) were rewritten to measure the students' individual perceptions of their classroom environment, rather than their estimates of the opinions of the class as a whole. Both scales were then administered to 10 7th grade math classes and 4 10th grade social studies classes. The rewritten…

Many self-concept measures employ several different scales to which the subject responds in a set order at one sitting. This study examined the effects of different testing conditions on such scales. Bill's Index of Adjustment and Values was administered to 191 graduate students under two different sequences, and two time delay conditions. The…

A potentially valuable measure of overconfidence on probabilistic multiple-choice tests was evaluated. The measure of overconfidence was based on probabilistic responses to nonsense items embedded in a vocabulary test. The test was administered under both confidence response and conventional choice response directions to 208 undergraduate…

The effects of incentive conditions on the results of a confidence test were investigated. Two hundred thirty high school subjects were administered a very difficult confidence scored test under two conditions: 1) that the test would count heavily on their grades (incentive condition) and 2) that the test was for research purposes and would not be…

Recent efforts toward career education and the rise in occupationally oriented programs on the secondary and postsecondary level encourage a close examination of the nature of the relationship between people and their vocations. A 74 item device, the Vocational Commitment Index was developed to assess this relationship. Based upon a theoretically…

This study examined five subscales of the Pennsylvania Educational Quality Assessment self-concept scale, composed largely of items from the Coopersmith Self Esteem Inventory, in terms of socioeconomic status (SES) and sex differences in internal consistency, stability, across time changes in means, and relationship with achievement. In general,…

Empirical results are presented as regards the implementation of a latent-trait psychometric model by means of conditional maximum likelihood estimation. Items are scored polychotomously into varying numbers of nominal categories and the test and item characteristic curves and information functions are examined. It is concluded that scoring items…

Results of three studies based on Stanford Achievement Test data collected during the National Achievement Testing Program for Hearing Impaired Students in Spring, 1971 are reported. Compared in the first study are performance patterns of hearing impaired students on the Intermediate I and Advanced batteries with patterns of hearing…

Companies have been accused of using tests as a means of maintaining unfair discrimination against groups which have already suffered from many forms of discrimination. It does not follow, however, that tests themselves merit condemnation. Employers who use tests do so because the information furnished by tests is valuable to them in making hiring…

The purposes of the study to determine psychometric characteristics of the Series Learning Potential Test, the effects of Learning Potential training on Series scores, and the relationship of Series scores to IQ, race, social class, and reading achievement. The Series Test was administered to students in 79 classrooms in five Connecticut towns…

The purpose of this study was to improve the reliability of the Sigel Cognitive Style Test. Post hoc analysis of ninety test protocols had indicated that the original thirty-five card test could be shortened to improve the test's reliability. This analysis also showed that males were responding to certain cards differently from females.…