Two selection and nine evaluation hypothesis testing tasks varying systematically with respect to causality, response alternatives, and context continuity were administered to two samples of adults (N=35; N=32). It was to determine effects of these variables and the degree to which subjects reasoned with material conditional, biconditional,…

A multitrait-multimethod matrix containing two methods of measuring 12 personality traits was analyzed and confirmatory factor analysis was applied to the data. Although unexplained variance remained, method factors and a general personality factor significantly improved the fit of a model containing only trait factors. (Author/RL)

An idea is presented for a class project in motor learning which emphasizes stimulating student involvement in motor learning research. The project enables student to learn about experimental design, experimental control, equipment construction, subject solicitation, and data analysis and to stimulate their critical and logical thinking. (JN)

Two methodological problems often arising in dyslexia research are considered. The first problem concerns the validity of experimental measures and the related problem of interpreting null results. The second problem involves the effects of sampling from a disabled population if the disorder under investigation has multiple unknown origins.…

Pigeons learned discrimination rapidly and responded differentially to pictures seen for the first time. The essential feature of a natural discrimination--which is the ability to cope with natural ranges of variation--was approached and earlier experimental results were extended using other classes of stimuli. (Author/RK)

Attempts to determine what effect, if any, a color's hue or value has on the elementary school child's perception of apparent weight. (Author/RK)

If a motive for cognitive consistency and the extravert's preference for the arousing and novel are opposing tendencies, one would predict that highly extraverted individuals will show less preference for states of cognitive consistency than those who are less extraverted. Two experiments test this prediction. (Author/RK)

The degree of relationship among measures of learning proficiency, cognitive development (following Piaget), school achievement in reading, mathematics, and spelling, and IQ among 79 low socioeconomic status black males attending the seventh grade in an inner-city school was examined. (Editor)

Focuses on the effect of verbal and pictorial stimuli on paired associate learning. The discussion centers on the traditional finding that learning is easier with pictures than with words as stimuli. Hypothesizes that this effect is caused by differential coding and storing strategies for words and pictures. (Editor/RK)

Piaget's theoretical position assumes that the ability to solve complete multiplication will be an earlier development in the child than partial multiplicative classification and his experimental findings support this hypothesis. The present experiment using 159 children aged 4:7 to 7:6 years re-examined the issue. (Editor/RK)

Deals with the relationship between attitudinal change and differences in environmental perception. (Author)