Discussion

While in no way denying the interest of the study of “Theories of Mind”, the discussion tends to show that, in the tasks described in the papers, the development of abilities to process perceptual and verbal information is sufficient in itself to fully account for changes in observed responses. Whether the issue is false beliefs or the distinction between appearance and reality, children's behavior is highly dependent on their working memory span, their operational efficiency (action coordination) and their current state of knowledge. “Theories of Mind” emerge as indices of cognitive development. Their adaptive value is more problematical.     

Some influences of accent structure on melody recognition

Two experiments were carried out to investigate the roles of joint accent structure and familiarity in delayed recognition of relatively long tonal melodies. Melodic themes of target melodies were defined by correlating contour-related pitch accents with temporal accents (accent coupling) during an initial familiarization phase. Later, subjects gave recognition responses to key-transposed versions of the target melodies as well as to decoys with same and different contour accent patterns. In Experiment 1, all to-be-recognized melodies occurred both in an original rhythm, which preserved accent coupling, and in a new rhythm, which did not. Listeners were best at distinguishing targets from different decoys, especially in the original rhythm. In Experiment 2, the familiarity of target tunes and the rhythmic similarity in recognition were varied. Similar rhythms preserved accent coupling, whereas dissimilar rhythms did not. Listeners were most adept in distinguishing familiar targets from different decoys (Experiment 2A), particularly when they appeared in novel but similar rhythms. However, in similar rhythm conditions, listeners also frequently mistook same decoys for targets. With less familiar targets (Experiment 2B), these effects were attenuated, and performance showed general effects of pitch contour.     

Cultures and creativity within hierarchical organizations

This study examined cultural pluralism along the lines of hierarchy among eight large public accounting firms. Although no significant cultural differences among the different functional units (auditing, tax, and management consulting) of the firms were found, culture was found to be related to hierarchical level. Specifically, top level managers (partners) perceived the culture of their organization as significantly more innovative and supportive than did individuals at lower hierarchical levels (managers/supervisors and senior/ staff accountants). Creativity was not affected by culture.     

“Okokuqala ngokuya ndandiqala kwakungekho easy”: Feeling empowered to take collective action through community engagement

Community engagement (CE) at Rhodes University (RU) and community psychology draw on similar principles: using an asset-based community development approach; recognising and drawing on the skills, capabilities, and knowledge of all parties, which they contribute to a partnership. Working from a strategic model of engagement, mutuality is foreground in all CE activities, where both student volunteers and community partners jointly benefit from the engagement. This paper examines CE at RU and how CE principles are translated into practise, using Siyakhana@Makana (S@M) as a case study. In S@M, a 19-week-long volunteer programme, community partners and student volunteers are jointly involved in planning, executing, and evaluating CE activities together. This paper illustrates how being involved in such CE activities has enabled community partners to mobilise for effective change in their communities. Community partners reflect on how they have been empowered to taken on leadership roles, addressing local challenges in collaborative ways, while drawing on the skills and knowledge that they have gained through their engagements in S@M. This resonates with the social action model of community psychology, a participatory approach that seeks to mobilise people to bring about change in the contexts in which they live.     

Measuring the bandwagon effect: Development of a generalized bandwagon luxury motivation scale

This study presents a reliable, valid, and generalizable four-item unidimensional scale that captures general bandwagon luxury motivation. After a thorough review of the bandwagon luxury literature, the authors developed an initial set of items which were then reviewed by academic experts. The scale was tested in a series of four studies to refine the scale and demonstrate its reliability and validity: Study 1 was conducted with a student sample in the Southeast, Study 2 with a student referral sample of adults in the Midwest, Study 3 with a national Qualtrics panel sample in the United States, and Study 4 with another national Qualtrics panel sample in the United States that included only those who had bought or consumed a luxury product in the past 12 months. Study 4 was done to corroborate the evidence from Study 3 with a sample of luxury consumers. The generalized bandwagon luxury motivation scale is positively related to status consumption motivation, congruity with one's internal self, a preference for visible luxury brands, and conspicuous consumption. It is negatively related to the inconspicuous luxury motivation of being unknown to the masses and independent self-construal. This research contributes to the literature by developing a generalized scale to measure the luxury bandwagon effect that is not limited to one luxury product domain.     

Early cognitive development and parental education

Relations between cognitive development in infancy and early childhood, and parental education were examined. Previous research has found little association between measures of the parenting environment, including parental education and socio‐economic status (SES), and cognitive development in infants and children under 2 years of age. However, the earlier studies may not have reliably measured individual differences in cognitive abilities, thus, there is uncertainty as to what age elements in the parental environment affect cognitive development. Seventy‐six infants were tested on a range of cognitive tasks at 3‐month intervals between the ages of 9 and 18 months. Information on parental education (a component of SES) was collected. Seventy‐one of the children returned at 27 months and completed the Bayley Scales of Infant Development, Mental Scale, which was used as an outcome measure for the earlier tasks. The findings present a clear indication that cognitive development in early childhood is affected by the parenting environment, at least from as early as 12 months. Copyright © 1999 John Wiley & Sons, Ltd.     

Symbolic Racism and Voting Behavior on Proposition 2091

Proposition 209 was the affirmative‐action initiative placed on the 1996 general election ballot that asked California voters to determine the future of ethnically targeted state programs. Simultaneous logistic regression was used to examine the extent to which symbolic, traditional, and other racial attitudes, such as the belief that things were better when Blacks and Mexican Americans were segregated from Whites, the belief that minority groups were getting more than their share of resources, and the belief that minority groups were no longer discriminated against were related to support for Proposition 209. The results indicate that symbolic racism and the belief that minorities were accessing more than their share of resources provided stronger explanations for support of the initiative than did other sentiments.     

Optimal scaling by alternating length-constrained nonnegative least squares, with application to distance-based analysis

An important feature of distance-based principal components analysis, is that the variables can be optimally transformed. For monotone spline transformation, a nonnegative least-squares problem with a length constraint has to be solved in each iteration. As an alternative algorithm to Lawson and Hanson (1974), we propose the Alternating Length-Constrained Non-Negative Least-Squares (ALC-NNLS) algorithm, which minimizes the nonnegative least-squares loss function over the parameters under a length constraint, by alternatingly minimizing over one parameter while keeping the others fixed. Several properties of the new algorithm are discussed. A Monte Carlo study is presented which shows that for most cases in distance-based principal components analysis, ALC-NNLS performs as good as the method of Lawson and Hanson or sometimes even better in terms of the quality of the solution. Supported by The Netherlands Organization for Scientific Research (NWO) by grant nr. 030-56403 for the “PIONEER” project “Subject Oriented Multivariate Analysis” to the third author. We would like to thank the anonymous referees for their valuable remarks that have improved the quality of this paper.     

Unimanual and bimanual tasks and the assessment of handedness in toddlers

The goal of this study was to examine the relations between three different measures of handedness: unimanual reaching, bimanual manipulation and unimanual manipulation. The appropriateness of the task chosen to evaluate handedness was also explored by contrasting different bimanual manipulation tasks for the more or less differentiated (passive\active) roles assigned to each hand. Forty children, between 18 and 36 months of age, were tested in the three conditions. The results show that the degree of bimanual handedness is greater on the bimanual tasks with a strong role differentiation than on the tasks with less differentiation. Bimanual tasks with a strong role differentiation elicited more right‐handedness than unimanual reaching. Among the children who showed handedness in reaching, the correlation between unimanual and bimanual handedness was high, especially for right‐handers. For some tasks, bimanual handedness appeared at the earliest age studied here (18 months), and there was little relationship between bimanual handedness and bimanual skill. In contrast with unimanual reaching, there was no age‐related change in the degree of handedness for either bimanual or unimanual manipulation. There was a bias toward the use of the right hand for unimanual manipulation. It was concluded that grasping is not the best task to employ to look for robust evidence of handedness, and that bimanual tasks offer a better way to estimate handedness in children, as long as the tasks are carefully chosen.