Establishing the constructs of childhood behavioral disturbances in a Chinese population: A questionnaire study

The behavioral problems of Chinese children were examined in a questionnaire study of a representative sample of 3,069 seven-year-old Chinese schoolboys in Hong Kong using Rutter's questionnaires for completion by parents and teachers. Separate robust dimensions of hyperactivity, antisocial, and neurotic behaviors were evident. The correlations among different dimensions were similar to those reported in the West. Short-term longitudinal analysis suggested that these dimensions were stable over time and that antisocial behaviors might develop in hyperactive children. The finding highlights the necessity of differentiating the hyperactive domain from the antisocial one. A significant source effect was found in all three dimensions. Chinese schoolboys had nearly two times the level of questionnaire-rated hyperactivity compared with school boys in the West; but it is premature to conclude that hyperactivity is more common in Chinese schoolboys in Hong Kong. Cross-cultural differences in adults' expectations and tolerance remain a plausible explanation.This study was supported by the Croucher Foundation. We would like to thank the Education Department of Hong Kong for assistance in sampling. We are particularly grateful to the children, teachers, and parents who participated in this study.     

Harmonic analysis of a complex motor behavior

This study deals with the learning of a complex motor task. The example used is rock climbing, where the subject's motricity is highly constrained by the natural environment. The working hypothesis is that the sensorimotor system searches for behavioral solutions characterized by minimal energy expenditure in the dissipation of forces. Harmonic systems — which satisfy this requirement — are used as models for testing the source signal defined by the acceleration curve at the learner's center of gravity. It is shown that only the dynamics of an expert's motor behavior are harmonic, while those of a beginner are stochastic (or chaotic). It is also shown that for experts, the process of adaptation to environmental constraints involves the relaxation of the dynamics and the ensuing emergence of a stable state which corresponds to a quasi-periodic attractor. A harmonic analysis is used to distinguish the environmental and intrinsic components of the behavioral dynamics, shown to result from the coupling of these two components via resonance.     

Pictorial surface attitude and local depth comparisons

We measured local surface attitude for monocular pictorial relief and performed pairwise depthcomparison judgments on the same picture. Both measurements were subject to internal consistency checks. We found that both measurements were consistent with a relief (continuous pictorial surface) interpretation within the session-to-session scatter. We reconstructed the pictorial relief from both measurements separately, and found results that differed in detail but were quite similar in their basic structures. Formally, one expects certain geometrical identities that relate range and attitude data. Because we have independent measurements of both, we can attempt an empirical verification of such geometrical identities. Moreover, we can check whether the statistical scatter in the data indicates that, for example, the surface attitudes are derivable from a depth map or vice versa. We estimate that pairwise depth comparisons are an order of magnitude less precise than might be expected from the attitude data. Thus, the surface attitudes cannot be derived from a depth map as operationally defined by our methods, although the reverse is a possibility.     

The influence of height and key on the perceptual similarity of transposed melodies

In two experiments, the perceptual similarity between a strong tonal melody and various transpositions was investigated using a paradigm in which listeners compared the perceptual similarity of a melody and its transposition with that of the same melody and another transposition. The paradigm has the advantage that it provides a direct judgment regarding the similarity of transposed melodies. The experimental results indicate that the perceptual similarity of a strong tonal melody and its transposition is mainly determined by two factors: (1) the distance on the height dimension between the original melody and its transposition (pitch distance), and (2) the distance between keys as inferred from the circle of fifths (key distance). The major part of the variance is explained by the factor pitch distance, whereas key distance explains only a small part.     

PHILOSOPHY OF MEDICAL PRACTICE: A DISCURSIVE APPROACH

In spite of the seminal work A Philosophical Basis of Medical Practice, the debate on the task and goals of philosophy of medicine still continues. From an European perspective it is argued that the main topics dealt with by Pellegrino and Thomasma are still particularly relevant to medical practice as a healing practice, while expressing the need for a philosophy of medicine. Medical practice is a discursive practice which is highly influenced by other discursive practices like science, law and economics. Philosophical analysis of those influences is needed to discern their effect on the goals of medicine and on the ways in which the self-image of man may be changed. The nature of medical practice and discourse itself makes it necessary to include different philosophical disciplines, like philosophy of science, of law, ethics, and epistemology. Possible scenario's of euthanasia and the human genome project in the USA and Europe are used to exemplify how philosopy of medicine can contribute to a realistic understanding of the problems which are related to the goals of medicine and health care.     

EVALUATION OF TWO HEALTH EDUCATION STRATEGIES FOR TESTICULAR SELF-EXAMINATION

We evaluated the effects of two health education teaching methods, a pamphlet based on a task-analyzed checklist and two professionally developed films, on the completeness, accuracy, and maintenance of testicular self-examinations (TSE). Subjects (N = 48) were videotaped while performing a TSE after training and at a follow-up visit. Direct observation of the tapes showed that checklist-based training resulted in more complete and longer TSEs (p < .05). Social validation ratings, however, suggested that physicians were unable to discriminate reliably the performances of subjects taught using the two methods. Accuracy of detection of simulated lesions on plastic models was also similar for the two groups. Adherence to TSE recommendations was high during the study, but declined across the follow-up period. Further study is needed to promote adherence to TSE and to document the effects of early detection on morbidity and mortality of testicular cancer.     

The Many Meanings of Religiousness: A Policy-Capturing Approach

ABSTRACT This article reports the results of two policy-capturing studies that investigated individual differences in the meaning of religiousness. Policy capturing requires judges to respond to a large number of hypothetical scenarios or profiles that differ along a number of potentially relevant cues or attributes. Multiple regression analyses are then conducted to ascertain which cues are influencing each judge's responses. For both studies, 100 profiles were developed describing hypothetical individuals who differed on 10 cues thought to influence perceptions of religiousness (e.g., church attendance, doctrinal orthodoxy), and judges rated each profile on a 9-point religiousness scale. Judges in Study 1 were 27 Roman Catholic and Protestant college students. Policy-capturing analyses identified clear individual differences in the cues that afifected judgments of religiousness, and in the self-insight of the students into their personal policies. To test whether these findings reflected the youth or religious maturity of the sample, the study was replicated with a sample of 22 Catholic and Protestant clergy. Similar results were found in Study 2. In both samples, individual policy capturing did a significantly better job of predicting judgments of religiousness than did self-described policies or policies created by averaging across judges. Together these findings underscore the diversity of religious meanings and the need for further idiographic investigations in the psychology of religion.     

Self-Serving Evaluations of Conflict Behavior and Escalation of the Dispute1

There is good evidence that people generally tend to evaluate behaviors, contributions, and outcomes in terms favorable to the self. The present series of studies expands this finding by showing that professional negotiators (Study 1), governmental decision makers (Study 2), and organizational consultants (Study 3) make self-serving evaluations of conflict behavior: They view their own conflict behaviors as more constructive and as less destructive than those of their opponents. In addition, results revealed that self-serving evaluation of conflict behavior is associated with increased frustration, with reduced problem solving, and with enhanced likelihood of future conflict. It is argued that these findings expand the conflict literature in that they provide better insight into the motivational-cognitive antecedents and consequences of conflict escalation.