This study examined the effects and interaction of multiple and linear visual presentation modes and cognitive style on performance in a visual location task. Subjects were 132 undergraduate college students (40 males, 92 females) in professional education courses. The Group Embedded Figures Test (GEFT, Wilkin et al., 1971) was used to identify…

Visual analysis is examined as the dominant analytical method for single-case time series, in a study with 37 postgraduate research students which varied serial dependence, amount of random variability, and effect size. False alarm rates were high, but miss rates were low, indicating that visual analysts are not conservative judges, and serial…

Graduate students individually examined 34 photographs for an investigation of commonly perceived underlying visual dimensions. Similarity judgements between photographs were used for multidimensional scaling; subject interview data were used to describe meaningful visual concepts. Results indicate that pictures were grouped in clusters along…

The defining attributes of analytic ability as they relate to theoretical cognitive styles were explored in a study using a sample of 492 males aged 16-21 years. The Group Embedded Figures Test (GEFT--Witkin, Oltman, Rasher, and Karp) was used to measure field dependent and independent aptitude. Scores on the GEFT were compared with scores on an…

This investigation into the information processing strategies of 12 profoundly/prelingually deaf college students found that subjects with oral/manual educational backgrounds had higher levels of recognition than did subjects from oral-only educational backgrounds. Highest recognition was to the left and right of the fixation point, followed by…

A graph is an example of a symbol system which encodes information through the juxtaposition of marks in a two dimensional plane; decoding the meaning of a graph uses specific attributes of the human visual system. This study was undertaken to identify some variables critical to graph interpretation as a first step in designing better curriculum…

The relative effectiveness of digital versus photographic images was examined with 96 college students as subjects. A 2x2 balanced factorial design was employed to test eight hypotheses. The four groups were (1) digitized black and white; (2) digitized pseudocolor; (3) photographic black and white; and (4) photographic realistic color. Findings…

This study was designed as the first in a series of inquiries to investigate the use of multidimensional scaling techniques for observing and measuring underlying dimensions commonly perceived by viewers. Following a preliminary study to select photographs, 15 university students aged 19 to 45 were presented with stimuli consisting of 34 colored…

Two experiments were conducted to assess the performance of freshmen chemistry students with poor spatial visualization skills. In the first experiment, 31 chemistry students with academically deficient backgrounds completed a diagnostic test of their ability to visualize and interpret pictorial representations of simple molecular structures. At…

Maintains that having students estimate the size and width of a class waste paper can (placed on a desk) is a simple and effective way of illustrating perceptual distortion. Tests show that people will consistently overestimate the height of the can, allowing for a useful discussion on sensory distortion. (MJP)

The study of the performance of 55 learning-disabled college students on the Raven's Progressive Matrices and other tasks found: (1) a negative correlation between visual-motor skills and written language, (2) a positive correlation between visual organization/memory and mathematics, and (3) a positive correlation between auditory memory and…

Outlines a simple classroom demonstration that illustrates Piagetian conservation. Piagetian conservation refers to the illusion of an increase in mass by changing an object's form. This demonstration, done by forming an ellipse with an extension cord, shows that college students are as susceptible to this effect as are young children. (MJP)

Describes a corrective method of color adaptation designed to allow most, if not all, individuals to participate in the learning process as well as social and work-related environments. Provides a concise summation of facts and theories concerning color deficiency. Includes anatomical drawings, graphs, and statistical data. (MJP)

The focus of this study was on the relationship between visual and statistical analyses of time series data and the degree to which characteristics of the data influenced this relationship. A total of 52 teachers took part in evaluating a series of graphs having prespecified characteristics. The independent variables manipulated included: slope,…

Gender differences in level and pattern of cognitive abilities were examined in 49 learning-disabled college students. Females were stronger in visual-motor abilities and verbal conceptualization, whereas the males' highest abilities were nonverbal visual-spatial. Both groups showed weaknesses in memory for digits and factual knowledge and in…