Relationship of field dependence and color coding to female students' achievement.

This study examined the relationship of field dependence and differentially color coded instructional materials (black-and-white and colored) with 126 female students' achievement. Significant differences were found between field-independent and field-dependent students with the field-dependent students scoring higher on the Total Criterion measure. No significant interaction betWeen color coding and field dependence was found on the Total Criterion Test scores. Significant differences in achievement were found in favor of women who received the color-coded version of the Total Criterion Test. These results confirm previous findings relating to the importance of field dependence in visual information and points to the necessity for further systematic analysis of the unique contributions color-coded instructional strategies might have in facilitating the achievement of female students.     

The evaluation of linear forms

This presentation deals with the evaluation and transformation of linear forms. Especial emphasis is given to implicit methods in which it is not necessary to find the explicit values,x _i . The relation of the Aitken triple product matrixCA ^–1 B to the result of a linear transformation of linear forms is noted, and the numerical computation of this triple product matrix is indicated with the use of the simple Abbreviated Doolittle solution. Application is also made to the evaluation ofA ^–1 and ofA ^–1 C.     

Emmert's law in the Ames room

The Ames distorted room illusion, in which the perceived sizes of objects placed within the room differ from their objective sizes, has been used to support arguments for indirect perception. A study is reported in which Emmert's law of the apparent size of after-images was examined in relation to the Ames room's illusory alteration of apparent and actual distances. Size judgments of afterimages projected into the Ames room were compared with control conditions in which both actual and apparent afterimage projection distances were reproduced. Results indicate that Emmert's law may not provide a simple geometrical relationship between proximal image size and actual viewing distance, and that the processes involved in making afterimage size judgments are similar to those processes involved in making size judgments of 'real world' objects.     

Accuracy of memories from childhood and adolescence related to growth and size

The ability of middle-aged adults to recall their body size and events occurring up to 40 years earlier was assessed. Ninety-one subjects recalled their relative height, weight, and fatness during childhood, early adolescence and late adolescence. Accuracy of these memories was compared with the accuracy of current reports. The ability to accurately date benchmarks of their maturation such as menarche and year of maximal growth in height was also examined. Accuracy of reports did not decline uniformly over time. In general, reports of childhood physical characteristics were at least as accurate as reports of current characteristics; that is, they did not differ significantly from current reports. Males were less accurate in their reports of relative height and fatness during early adolescence and childhood. This project has been funded at least in part with federal funds from the U.S. Department of Agriculture, Agricultural Research Service under contract number 53-3K06-5-10. The contents of this article do not necessarily reflect the views or policies of the U.S. Department of Agriculture, nor does mention of trade names, commercial products, or organizations imply endorsement by the U.S. Government.     

The determination of the factor loadings of a given test from the known factor loadings of other tests

A technique is indicated by which approximations to the factor loadings of a new test may be obtained if factor loadings of a given group of tests and the correlations of the new test with the other tests are known. The technique is applicable to any orthogonal system and is especially adapted to cases in which a _ji a _jk = 0 wheni k. Application is also made to the simultaneous determination of the factor weights of a group of tests in which no additional common factor is present. The technique is useful in adding tests to a completed factorial solution and in using factorial solutions involving errors to give results which are approximately correct.     

Civil commitment laws in nineteenth-century New York

The roots of nineteenth-century American civil commitment law lay in English common law, in particular poor law, with its mixed motives of helping lunatics and of protecting the community from them. As state institutions assumed an increasingly large share of the burden of restraint in the 1840s and 1850s, such confinement decisions became subject to greater public scrutiny. This can be seen particularly clearly in New York State, which in 1842 passed a law requiring that two physicians examine each alleged lunatic and report their findings to a judge who then made the final commitment decision. After the Civil War, a number of legal decisions limited the state's power to initiate civil commitments to cases of clear social danger, though families were not so confined. An 1874 statute further tightened procedural guidelines for civil commitments. A State Commissioner in Lunacy was appointed to oversee the internal workings of lunatic asylums. Yet such legal “reforms” failed to slow the increasing tendency of both families and communities to use such institutions as long-term holding places for the socially marginal or threatening.