Conventional methods used for the presentation of pre- and post statistical information generally are deficient in economy and compactness and fail to show internal movement from pre- to posttest. This technique precludes these shortcomings through the presentation of information in a highly visible manner which reveals the strata of internal…

Primary validation of the Nor Cal questionnaire was accomplished in Phase 2 of the Nor Cal Attrition Study. The results of the primary validation were reported in the document entitled, "Phase 2 Final Report," (ED 039 879). The primary validation showed that the consortium-wide empirical validity varied from .65 to .67 depending upon whether or…

This is one in a series of technical reports presenting summary statistics derived from the University of Washington registrar's office quarterly scholarship lists. Two types of tables are included: first, for each class, the mean cumulative grade-point average, standard deviation, and number of students enrolled in autum, winter, and spring…

Discusses various types of M.S. programs in chemistry and provides statistics on salaries and types of jobs offered to chemists with M.S. degrees. (MLH)

One hundred and twenty-eight subjects responded to one of four differently labeled five-point Likert-type response scales. Although no significant differences in test means and in reliability estimates were found among response scales, the scales did differ on measures of variability. (Author/LMO)

This study demonstrated the use of confirmatory factor analysis to investigate the existence of item bias in an affective scale measuring self-concept. Data were collected from three ethnic groups in grade eight. A differential response pattern found across the three groups indicated potential bias in score interpretation. (Author/LMO)

This study derives the economic costs of misclassification in nursing home patient classification systems. These costs are then used as weights to estimate the reliability of a functional assessment instrument. Results suggest that reliability must be redefined and remeasured with each substantively new application of an assessment instrument.…

This study examined three statistical methods for selecting items for mastery tests: (1) pretest-posttest; (2) latent trait; and (3) agreement statistics. The correlation between the latent trait method and agreement statistics, proposed here as an alternative, was substantial. Results for the pretest-posttest method confirmed its reputed…

Methods of estimating the standard error at different ability levels were compared. Overall, it was found that at a given ability level the standard errors calculated using different formulas are not appreciably different. Further, for most situations the traditional method of calculating a standard error probably provides sufficient precision.…

Offers perspectives on the placement and value of statistical studies in science education. Cites examples from the field of chemical education that address evaluation concerns and problems. Points out factors to consider and questions to ask in reviewing research studies. (ML)

The purpose of this study was to examine the location of Zukerman's sensation seeking (SS) construct in the personality domain as measured by Cattell's 16 personality factors (16PF). Results of the factor analytic study indicated that the global construct of sensation seeking is related to the broad personality factor of independence. (Author/LMO)

Rasch model equatings of multilevel achievement test data before and after the deletion of misfitting persons were compared. Rasch equatings were also compared with an equating obtained using the equipercentile method. No basis could be found in the results for choosing between the two Rasch equatings. (Author/LMO)

Nonlinear common factor models with polynomial regression functions, including interaction terms, are fitted by simultaneously estimating the factor loadings and common factor scores, using maximum likelihood and least squares methods. A Monte Carlo study gives support to a conjecture about the form of the distribution of the likelihood ratio…

Describes the procedures used in a study designed to examine differences in nonstandard grammatical usage among and between Negro and white working-class informants in the community of Alexandria, Virginia. (Author/FB)