Preference Techniques at www.japanese-home-gardens.com

The peer relations of children and adolescents have been studied in various ways—by direct observation in informal coeducational groups, by sociometric or other preference techniques, and by sentence completions. The results of these diverse methods are quite similar. In general, at every age boys and girls are inclined to prefer their own sex.

During the first two years most children fluctuate between using one hand and both hands and between using the right or the left hand. A right-handed child may start off using the left hand, then both hands, then the right hand. Even at two years of age he will often trot around with an object in each hand, wave bye-bye with both hands. He may, however, show preference for one hand in reaching for objects. This preference may be constitutional—a tendency toward greater activity in one side of the body. Or it may be explained psychologically. If the parent or nurse con-

This invention is epochal. It was the first of those photomechanical techniques that were soon to revolutionize the graphic arts by eliminating the hand of man in the reproduction of pictures of all kinds. It is the most important of Niepce's contributions, for it involved a principle that became basic to future techniques: the differential hardening by light of a ground that would control the etching in exact counterpart of the image.