The results of data analysis based on the multiplicative binomial model (MLTBIN) are compared with dichotomous data analyzed by using the simple logistic model (SLM). Specifically, the paper focuses on the issues of fit to these Rasch Models and estimates of item difficulty. The data indicate that the SLM and MLTBIN are not comparable in the…

Research supported in part by the Research Foundation of Oklahoma State University.

Supported by National Institute of Mental Health, USPHS, Grant M-4186 and by National Institute of Child Health and Human Development, USPHS, Grant I POI HD-01762-02

Study supported by Research Grant RT-11 from the Social and Rehabilitation Services, Department of Health, Education, and Welfare.

OBJECTIVITY IN MENTAL TESTING REQUIRES THAT TEST CALIBRATION BE INDEPENDENT OF WHICH PERSONS ARE USED FOR THE CALIBRATION AND THAT PERSON MEASUREMENT BE INDEPENDENT OF WHICH ITEMS ARE USED FOR THE MEASUREMENT. PRESENT PRACTICE IS NOT OBJECTIVE, BUT COULD BE SO, AS SHOWN BY THE EXAMPLE HERE PRESENTED. DATA COME FROM THE RESPONSES OF 976 LAW…

THIS RESEARCH INVESTIGATED THE EFFECT OF ITEM ORDER ON THE PERFORMANCE OF A MATHEMATICS TEST, ON THE AMOUNT OF STRESS GENERATED DURING A TEST, AND ON THE PERFORMANCE OF HIGH AND LOW TEST ANXIOUS SUBJECTS. SOME 106 HIGH SCHOOL STUDENTS COMPLETED THE ACHIEVEMENT ANXIETY TEST. THEY WERE RANDOMLY ASSIGNED TO ONE OF TWO TREATMENT GROUPS TWO WEEKS…

Walberg and Thomas (1972) have made an attempt to operationalize and validate the concept of open education. However, their conception fails to differentiate between open education and other nontraditional approaches to education, thereby lumping together a variety of different types of classrooms. In addition, their method of item selection does…

Examples of cross-cultural stability or instability of mental test items are illustrated. A statistical procedure involving the cross-plotting of item difficulties for two different groups and generating a line of mutual regression through the resulting scatter of points is described. D-values, representing the perpendicular distance, in delta…

How farmers evaluate farm information sources, the views they hold of sources, and the relationship of views held to the use made of them were studied. The research was undertaken from two different vantage points: (1) determining how farmers view farm information sources, and (2) determining how views of farmers about sources are related to the…

Effects of item difficulty sequencing on performance and on post state anxiety were investigated using a timed mathematics aptitude test. The subjects were randomly assigned to a random, easy-to-hard, or hard-to-easy difficulty sequence group. The hard-to-easy sequence group performance was significantly lower than either the random or…

In this paper, a new item analysis index, e, is derived as a function of difficulty and discrimination to represent item efficiency. Item discrimination in this paper is not independent of item difficulty, and it is demonstrated algebraically that the maximum discriminating power of an item may be determined from its difficulty. Item efficiency is…

Illustrates a multivariate approach to item analysis. Previous formulation is extended by investigating techniques simultaneously taking into account scale variance with the goal of reducing the average correlation between scales. Study examines problems in determining optimum values for combinations of item parameters selected for personality…

A computer program for item evaluation, reliability estimation, and test scoring is described. The program contains a variable format procedure allowing flexible input of responses. Achievement tests and affective scales may be analyzed. (Author)

When the logistic function is substituted for the normal, Thurstone's Case V specialization of the law of comparative judgment for paired comparison responses gives an identical equation for the estimation of item scale values, as does the Rasch formulation for direct responses. Comparisons are made. (Author/CTM)