Affective Predictors of Dissociation,III: Affect Balance

The relationship between dissociative tendencies and the balance of affective expression was investigated in a sample of 100 Australian psychology students. Dissociation was positively related to an imbalance of affect in favor of negative affects. Higher levels of dissociation were associated with more frequent experiences of negative affects but were unrelated to the expression of positive affects. The data are consistent with the view that trauma-related affects have a mediating role in the development of dissociative tendencies.     

Market and Customer Analysis for Sales Management

Abstract

The application of market and customer analysis to selling is discussed in this article. Four instruments were devised and used with three companies in order to improve the performance of their salespeople. While the needs of salespeople vary according to the company and the industry, these instruments can form the basis for organizing the activities of salespeople.     

Risk preferences in young children: early evidence of individual differences in reaction to potential gains and losses

New methods were developed for studying risky decision making in children as young as age five. Each child was given a block of ‘gain’ trials, for example, a choice between a sure gain of one prize and a 50:50 chance of gaining either two prizes or no prize, and a block of ‘loss’ trials, for example, a choice between a sure loss of one prize and a 50:50 chance of losing either two prizes or no prize. We were thus able to compare risky choice for gains and losses at the level of the individual child. In each of two experiments a variety of individual difference variables were measured, including in Experiment 2, the child's parent's scores on the same task. Across experiments, the preponderance of choices was of the risky option. However, most children and adults made more risky choices in the domain of losses than in the domain of gains. Predictors of individual differences in children included shyness, impulsivity, and the risk taking of the child's parent. We suggest that methods are now in place to encourage further studies of decision processes in young children. Copyright © 2003 John Wiley & Sons, Ltd.     

Identification of temporal coherence between auditory and visual channels

Attention, Perception, & Psychophysics - The accuracy of identification of the temporal coherence between auditory and visual channels was examined. Random sequences of sound and light bursts...     

Relativity of judgements about sound amplitude and the asymmetry of the same-different ROC

The problem of deciding whether two things are the same or different in magnitude can be solved by judging one magnitude relative to the other, or by making absolute judgements about the magnitude of each. The shape of the resulting receiver operating characteristic depends on which solution is adopted. In order to obtain empirical receiver operating characteristics, we therefore had subjects rate their confidence that two tone amplitudes were the same or different. Four subjects each made 500 ratings of three differences in amplitude. The asymmetry in the obtained characteristics indicated that subjects made relative rather than absolute judgements of the amplitudes, despite the fact that making absolute judgements would lead to better performance on the task.     

Discriminability in length of lines in the Müller-Lyer figure

Receiver-operating characteristics for the discriminability in the length of the lines of the Müller-Lyer figure were obtained by the rating method of detection theory. Six observers judged the shaft length of the lines of the figure with reference to the same standard line. Maximum-likelihood estimates of the index of (discriminability,d’, were a linear function of the difference in the length of the lines, but the functions did not pass through the origin because of a constant error of judgment. Because discriminability was determined by ROC analysis, the constant error could not be attributed solely to changes in criterion placement; instead, it showed that the Müller-Lyer figure induced a change in the discriminability of the lines.     

Temporal and spatial features in detecting one- and two-dimensional constraints in complementary visual displays

Spatial complements of visual displays of one- and two-dimensional Markov spatial constraints were successively presented for discrimination. Although each complement alone was sufficient for discrimination, spatial complements interfere when presented successively in time. Substantial changes in performance are observed for temporal separations as short as 10 msec and for spatial separations as short as 1 min in visual angle. Complete processing appears to take place in the interval between successive displays: thresholds are constant for a constant sum of display duration plus the interfield interval. Implications of complementary interference for a general theory of visual masking are briefly discussed.     

Patterns of interprofessional conflict resolution on school child study teams

This study proposes to investigate perceived and desired methods of conflict resolution by school psychologists, social workers, and learning disability specialists. Data were based on responses to a questionnaire which requested information on how decisions were reached or should have been reached when their child study teams were required to classify a child and there were conflicting opinions between professional groups. While majority vote and resolution by the psychologist accounted for the methods most often used in actual resolutions, there were great disagreements between professions as to how resolutions should have been made. Analysis indicates that the school psychologists are generally satisfied because they are the single group most often making final decisions, but they are generating feelings of discontent among other the other groups which suggst that team functioning and decision making, especially during voting, may be overly affected by interprofessional rivalry rather than objective data.