Twenty-eight engineering students were presented with complex spatial problems to investigate the effects of spatial aptitude and strategy selection on problem solving. Aptitude was determined by spatial aptitude test scores and strategy was determined by verbal reports and latency measures. It was found that aptitude determined the efficiency…

The ecological validity of three spatial ability tests was studied: The Embedded Figures Test, the Shepard/Metzler Mental Rotations Test, and the Differential Aptitude Spatial Relations subtest. The Building Memory Test was also examined in an attempt to replicate a previous study which supported its validity. These four tests were administered to…

Conducted to extend a series of earlier aptitude treatment interaction studies in the area of mathematics learning, this study was designed to determine if spatial and general reasoning abilities interact with instructional treatment. The aptitudes used included spatial and general reasoning ability. One hundred and twenty students enrolled in…

The relationship of aptitude, strategy, and cognitive task performance is explored through the use of mathematical models of performance time. Models of strategy and strategy-shifting on a spatial visualization task were tested individually for 30 male high school and college subjects. For each of three successive task steps (encoding,…

The authors review their work on helping physicaly handicapped persons gain spatial cognition through the interactive graphics learning environment of a computer LOGO system. The findings are said to demonstrate that the LOGO tasks are a viable part of a school curriculum for students with cerebral palsy, as shown by severely/profoundly…

Previous research on the nature of aptitude processes had ignored the important differences between speed and level of performance. However, investigations of the relationship between individual differences in speed and level suggest that speed of solving simple spatial tasks is largely independent of level attained on more complex spatial tasks.…

This study examines developmental differences in children's acquired knowledge of two routes of travel through an unfamiliar environmental area. Routes differed in terms of the extent of indirect travel required and were further differentiated in terms of direct and indirect segments of travel within each route. Each route connected four…

In order to gather data bearing on the effects of individual differences of the "invariant stages" assumption of cognitive-developmental theory, 270 black, Chinese, and white subjects from 5th, 7th, and ninth grades were administered a new, 25-item, spatial reasoning task. It was predicted that age, ethnic group, and sex would…

The relationship between academic failure and poor verbal abilities was studied in young aggressive boys. Results did not indicate a generalized deficit in verbal development among young aggressive boys. However some deficit in mediational use of verbal ability may be present in aggressive boys. (Author/MV)

Vocational high school students (22 males and 10 females) were observed on two measures of horozontality representation and on a portable rod and frame test. An association between type of vocational training and spatial performance was found. (SKC)

This article examines naive conceptions of spatial reference that children bring to Logo programing language learning. Students from Grades 4, 5, 6, and 8 were introduced to six Logo commands, and then were tested on predicting the output for instances of each of the commands. (Author/LMO)

Evaluated effectiveness of six instructional programs (each dealing with a different aspect of a spatial task related to diagrams of three-dimensional structures) with Bahraini students (ages 13- to 17-years-old). All brought about a significant degree of learning over all age groups. Implications of these and other findings are discussed.…

Reports a study of 5- to 12-year-old children and adults regarding the role of perceptual motor factors in copying an equilateral four-sided "square" or "diamond" figure under five conditions. Developmental trends were found for copying both figures; the diamond was less well performed than the square at all ages tested.…

Studies the ability of 5-month-old infants to recall temporal information and use temporal organization by training them to fixate a hierarchically structured or unstructured sequence of stimuli which appeared in four spatial positions. Results are interpreted within a temporal organizational framework; infants appear to use organization within…

Qualitative evidence for the operation of partial knowledge is given by two findings. First, performance when second and subsequent choices are made is above the chance level. Second, it is positively related to first choice performance. A number of theories incorporating partial knowledge are compared quantitatively. (Author/LMO)