Option weighting is an alternative to increasing test length as a means of improving the reliability of a test. The effects on test reliability of option weighting procedures were compared in two empirical studies using four independent sets of items. Biserial weights were found to be superior. (Author/CTM)

The reliabilities yielded by several differential option weighting scoring procedures were compared among themselves as well as against conventional testing. It was found that increases in reliability due to differential option weighting were a function of inter-item correlations. Suggestions for the implementation of differential option weighting…

Because previous reports have suggested that the lowered validity of tests scored with empirical option weights might be explained by a capitalization of the keying procedures on omitting tendencies, a procedure was devised to key options empirically with a "correction-for-guessing" constraint. (Author)

The purpose of this paper was to provide an empirical test of the hypothesis that elimination scores are more reliable and valid than classical corrected-for-guessing scores or weighted-choice scores. The evidence presented supports the hypothesized superiority of elimination scoring. (Author)

The answer-until-correct (AUC) procedure requires that examinees respond to a multi-choice item until they answer it correctly. Using a modified version of Horst's model for examinee behavior, this paper compares the effect of guessing on item reliability for the AUC procedure and the zero-one scoring procedure. (Author/CTM)

Compares various item option scoring methods with respect to coefficient alpha and a concurrent validity coefficient. Scoring methods compared were: formula scoring, a priori scoring, empirical scoring with an internal criterion, and two modifications of formula scoring. The empirically determined scoring system is seen as superior. (RC)

It has been shown that Guttman weighting of test options results in marked increases in the internal consistency of a test. However, the effect of this type of weighting on the structure of the test is not known. Hence, the purpose of this study is to compare the factor structure of Guttman-weighted and rights-only-weighted tests and to relate the…

An investigation was conducted to determine the effects of response-category weighting and item weighting on reliability and predictive validity. Response-category weighting refers to scoring in which, for each category (including omit and "not read"), a weight is assigned that is proportional to the mean criterion score of examinees selecting…

Effects of logically weighting incorrect item options in conventional tests and different scoring functions with confidence tests on reliability and validity were examined. Ninth graders took conventionally administered Verbal and Mathematical Reasoning tests, scored conventionally and by a procedure assigning degree-of-correctness weights to…

A procedure for scoring multiple-choice tests by assigning different weights to every option of a test item is investigated. The weighting method used was based on that proposed by Davis, which involves taking the upper and lower 27% of a sample, according to some criterion measure, and using the percentages of these groups marking an item option…

This study empirically determined the optimizing weight to be applied to the Wrongs Total Score in scoring rubrics of the general form = R - kW, where S is the Score, R the Rights Total, k the weight and W the Wrongs Total, if reliability is to be maximized. As is well known, the traditional formula score rests on a theoretical framework which is…

Confidence testing has been used in varying forms over the past 40 years as a method for increasing the amount of information available from objective test items. This paper traces the development of the procedure from Hevner's beginning method up to the various methods in use today and describes both the testing procedures and scoring methods…

Estimates for the variance of empirically determined scoring weights are given. It is shown that test item writers should write distractors that discriminate on the criterion variable when this type of scoring is used. (Author)

This research attempted to interrelate several methods of producing option weights (i.e., Guttman internal and external weights and judges' weights) and examined their effects on reliability and on concurrent, predictive, and face validity. It was concluded that option weighting offered limited, if any, improvement over unit weighting. (Author/CTM)