This package contains four FORTRAN 77 programs for Markov Model based learning experiments. One program estimates the likelihood of a one-stage learning model, another delivers estimates for a two-stage learning model. The third and fourth were designed for hypothesis testing the parameter differences between and within experimental conditions,…

The Meta-Analysis Effect Size Calculator provides the user with many different ways to calculate an effect size depending on the information available in the original research report. In addition, the program computes an unbiased estimate of effect size. (Author)

Handlers for interfacing the ScanTron and 2700 Optical Mark Readers with the IBM AT/XT/PC and Tandy 2000/1000/3000 iAPX 88/186/286 based computers were described. Differences between programing an RS232C serial port using BIOS interrupts and directly addressing the Motorola 8550 ART microprocessor were discussed. (Author/LMO)

A program named EXACON is presented which performs exact cellwise analyses of two-way contingency tables. One-tailed probabilities are computed for the observed frequency of each cell according to two different models. Even though exact probabilities are computed, EXACON does not demand much computer time even for fairly large samples. (Author/LMO)

Cognitive ability tests, personality inventories, and administrative- skills measures were administered to 238 telephone company employees. A small number of interpretively and predictively useful molar personal/motivational scales were derived using factor analysis. Some measures from each of the domains of the assessment battery were found to be…

A sample of 153 male police officers were subjects in a test validation study with two objectives: (1) to compare reliability estimates of a 16-item objective achievement examination scored by the conventional items right formula and by four different procedures; and (2) to obtain comparative concurrent validity coefficients of scores arising from…

From 13 objective interview items, five with adequate response variability were studied to determine if they would improve the validity of a verbal ability selection test in predicting work performance of 181 psychiatric aide trainees. In a multiple regression analysis, the verbal test correlated .27 with the weighted composite rating score.…

This study investigated the comparability of SAT Verbal and Mathematical scores for nonhandicapped examinees taking standard administrations and handicapped populations taking extended-time, special administrations. Results showed the two common-factor model to provide a reasonable fit in all populations with the mathematical factor fitting…

This study examined the predictive validity of the Developing Cognitive Abilities Test (DCAT), a test similar in form to traditional intelligence tests but developed along a format that included both a cognitive taxonomy and content areas. Students in fourth through twelfth grades were administered the DCAT and the Achievement Series Test.…

Forty adolescent subjects were administered the Woodcock Reading Mastery Tests. The Passage Comprehension Test for each subject was rescored using three different ceiling criteria. The three scoring methods were found to be equivalent to the scoring method recommended in the Woodcock Manual in terms of internal consistency reliability. (Author/LMO)

An instrument designed to measure teacher job satisfaction was developed using randomly selected elementary, junior high school, and senior high school teachers. Factor analysis was undertaken as an exploratory technique to help discover underlying factors and as a psychometric procedure for the development and refinement of the instrument.…

An unweighted and two weighted measures of children's giving were used in two experiments designed to enhance children's prosocial development. This paper describes the rationale for the construction of the measures, presents data on test-retest reliability and validity as well as treatment outcomes for the two experiments. (Author/LMO)

Several measures of reliability and validity were used to compare a shortened and a complete form of the Inventory of Learning Processes. Very similar reliability and validity statistics were produced with the two forms. Surprisingly low, validity coefficients were produced with both inventories. (Author/LMO)

An Attitudes-Toward-Computer Usage Scale (ATCUS) was developed in two studies: (1) 40 items were administered to 365 undergraduate students to assess attitudes toward the use of computers; (2) based on factor analysis results, the scale was reduced to 20 items and administered to 351 undergraduates. Results show the ATCUS to be a reliable…

This paper analyzes ways in which the methods used to measure psychological constructs contribute invalidity to measurements. The analysis distinguishes between inadequacies stemming from the behaviors selected for measurement and the harmful effects generated by the measurement operations themselves. (BS)