Pennsylvania's mathematical modeling technique to evaluate tax reform proposals requires the following data: personal income at the local level and measures of the breakdown of property tax payment by land use classification. The simulation technique could be readily adapted in reorganizing educational finance systems. (MLF)

Research analyzing demand for librarians in public, school, academic, special libraries, and in nonlibrary information professions, indicates that from 1983 to 1990, there will be almost no additional positions in traditional areas. Replacement of librarians will generate 9,500 to 10,000 new jobs per year. Footnotes and 114 references are…

Applies an economic model of occupational supply to librarianship to develop models that explain determination of number of accredited M.L.S. graduates and their starting salaries. Models are used to project graduates and salaries through 1990, then extended to project additions to supply of librarians from all sources. (36 references) (EJS)

The causal relationship between metaphonological skills (sound blending and segmentation) and reading/spelling was investigated in two studies of first graders. One tested causal models using data from a longitudinal study of 46 dyslexics and 44 control children. The other studied the effects of metaphonological training versus general language…

A solution to the problem of specification error due to excluded variables in statistical models of treatment effects in nonrandomized (nonequivalent) control group designs is presented. It involves longitudinal observation with at least two pretests. A maximum likelihood estimation program such as LISREL may provide reasonable estimates of…

Describes an Apple computer program (listing available from author) which simulates Fraunhofer and Fresnel diffraction using vector addition techniques (vector chaining) and allows user to experiment with different shaped multiple apertures. Graphics output include vector resultants, phase difference, diffraction patterns, and the Cornu spiral…

Japanese lesson study, in various adapted forms, is becoming increasingly significant in professional development of mathematics teachers in the USA. Our goal in the research reported in this paper was to investigate, in a three-tiered teaching experiment, the cycles of learning of two researchers, six teachers, and the students in three grade 4…

Uses a model portraying school district decision makers as "consumers" to analyze fiscal strain's causes (enrollment decline, input price increases, and changes in input mix) as variants of the general consumer model. Measures the impact of each cause of fiscal strain and discusses implications for state and federal aid. (Author/RW)

Using an input-output framework, the author derives hypotheses on wage differentials based on the assumption that human capital (in this case, education) will explain workers' wage differentials. The hypothetical wage differentials are tested on data from the Italian economy. (RW)

This study investigated the adequacy of the Rasch model in equating existing standardized tests with groups of examinees not widely separated in ability. With the exception of one test pair and one grade level, the Rasch model using the anchor test procedure provided a reasonably satisfactory means of equating. (Author/CTM)

Four types of experiences in problem solving are identified, and steps children must learn to do problem solving are presented. (MP)

California Assessment Program's application of matrix sampling and item response curve theory to the scaling and reporting of state assessment data is described. It is designed to express educational outcomes in an efficient and interpretable form that is both immediately informative and suited to analysis over extended periods of time.…

Proposes a two-level decision model to evaluate educational programs by types of learners they generate as well as the utility and cost of the program. Decision rules based on the underlying requirement that each learner reach self-sufficiency are described. (Author/BK)

Cut-off scores from two approaches for setting standards are examined. Standards determined from judgments about groups and from inspection of test content are compared. Results indicate that there was neither consistency nor pattern to cut-off scores set from the two procedures. (Author/RD)

The paper specifies mathematically the demand and supply functions for interacting factor markets to characterize the impact of alternative antipoverty programs. Wage subsidies were found to be the most transfer-efficient, implying that education and training is the most cost-effective means of aiding the low-skilled. (MF)