Effects of form rotation on the speed of classification: the development of shape constancy

Ss classified a test form as matching or not matching one of a set of memorized forms relative to which the test forms were rotated up to 90 deg. “Match” reaction times increased monotonically with both number of forms memorized and degrees of rotation. Disappearance of the rotation effect after practice was attributed to a change from considering rotational information during comparison to comparing rotation invariant features. The change in strategy is considered an indicant of the development of shape constancy. Time taken to memorize the patterns increased linearly with the size of the memory set, justifying interpretation of the RT effects in terms of comparison time differences rather than differences in memorial specification of the patterns.     

The teacher as observer and experimenter in the modification of disputing and talking-out behaviors

Disputing and talking-out behaviors of individual pupils and entire classroom groups in special education classes and regular classes from white middle-class areas and from all black poverty areas ranging from the first grade to junior high school were studied. The classroom teacher in each case acted as the experimenter and as an observer. Various means of recording behaviors were used and reliability of observation was checked by an outside observer, another teacher, a teacher-aide, a student, or by using a tape recorder. Observation sessions varied from 15 min to an entire school day. After baseline rates were obtained, extinction of inappropriate disputing or talking-out behaviors and reinforcement of appropriate behavior with teacher attention, praise and in some cases a desired classroom activity or a surprise at the end of the week brought a decrease in undesired verbalizations. A reversal of contingencies brought a return to high levels of inappropriate talking with a return to low levels when reinforcement for appropriate talking was reinstated. The experiments demonstrated that teachers in a variety of classroom settings could obtain reliable observational records and carry out experimental manipulations successfully using resources available in most schools.     

The effect of bulbocapnine administration on avoidance behavior

The Psychological Record -     

Weight and Shape Ideals: Thin Is Dangerously In

Thinness as an ideal of feminine beauty is nowhere more evident than in the popular media. The trend toward an increasingly thinner standard and a more tubular body shape has been documented in Playboy centerfolds from the 1960s to the 1980s. The present study provides information about body standards into the 1990s. Body measurements of two groups of models were compared: contemporary Playboy centerfolds and ready-towear and commercial print models advertising on the Intemet. Results revealed that thinness is increasing for centerfolds, many of whom meet weight criteria for anorexia. Results also showed unhealthy levels of thinness in the Internet models. Body shape for both cohorts is curvaceous, results which do not support prior research indicating an increase in the tubular body. Discussion focuses on the role that both the media and the health industry play in contributing to Western culture's adoption of an unhealthy body ideal.     

NGO-government partnerships

In an effort to streamline service and generate efficiency, governments have looked increasingly to non-government organizations (usually not-for-profit charities) to deliver service to the public. This new way of subcontracting is often referred to as partnership and has created interesting challenges for both government and non-government sectors. These range from threats to the autonomy of NGOs to the downloading of deficits to the private sector. The field of immigration and settlement provides a particularly interesting example of study.