A Comparison of the Effects of Material and Environmental Values on Vehicle Ownership

The results of a 1988 survey of Brisbane residents demonstrate a consistent linkage between the respondent's values and their preferences for vehicle ownership and use. Through the use of the ‘Dominant Social Paradigm’ - ‘New Environmental Paradigm’ theoretical framework (e.g. Cotgrove 1982) and the testing of ‘known groups’ (business people and members of the Rainbow Alliance) the following pattern emerged. The businesspeople were less willing to conserve fuel, and were more concerned with ‘comfort’ considerations when purchasing a motor vehicle than the Rainbow Alliance respondents who were more interested in utilitarian aspects. When subsamples with similar demographic/socioeconomic characteristics (males, respondents aged 35–49 years, respondents with household incomes between $20 000 and $49 999) were compared, the Rainbow Alliance respondents were more likely to own older, less valuable vehicles with small engines and manual transmissions. The businesspeople were more likely to own air-conditioned vehicles with poor fuel economy. This finding is an example of how people's values influence their vehicle purchasing decisions and is useful to policy-makers seeking to improve the efficiency of Australia's vehicle fleet.     

Locally D-Optimal Design for a Logit Model in Discrete Choice Experiment

Conjoint analysis is concerned with understanding how people make choice between products or services (alternatives) or a combination of product and service (choice set), so that businesses can design new products or services that better meet customers needs. In this situation, logit model (Multinomial Logit Model) has been used to calculate the probability related to choosing an alternative in a choice set with the highest utility. Then I considered several choice sets instead of one. In this article, I have used the locally D-optimal design for the combination of the level of attributes (two attributes each with two levels) to create alternatives. The optimal combination of alternatives in choice sets which help us to have a suitable choice.     

Application of a stochastic model to response assessments in a study of squamous cell carcinoma of the head and neck

This paper discusses the application of a stochastic model in the analysis of response assessments made at various time points in a clinical trial of patients with squamous cell carcinoma of the head and neck. The transition rates and probabilities during treatment administration are derived using maximum likelihood methods. The results are then compared with the standard analyses used in solid tumour studies. Stochastic modelling is considered to complement the standard analyses, provide a holistic approach and better explain the underlying disease process. Copyright © 2012 John Wiley & Sons, Ltd.     

Cybernetics and the management science process

This paper addresses methodological issues currently confronting the management science community. The urgency of these issues is evidenced by [1] the growing debate over the implementability of MS/OR (Management Science/Operational Research) models, [2] the absence of professional agreement on a ‘generalized’ theory of organizational structure and control and [3] the dearth of substantive contributions in the area of ‘policy’ analysis and modeling. It is argued that any resolution of these issues must address the management science process and that developments in cybernetics provide an integrating framework for this purpose. Aspects of this framework are presented by pointing out distinctions between the more traditional MS/OR approaches and the proposed cybernetic approach. Some of the concepts involved are not always associated with cybernetics, but the implications for the practice of management science are significant.     

Iud retention in West Pakistan and methodology of assessment

In 1967 there was a sample survey of women who had had IUD insertions in West Pakistan during the first 18 months of the Pakistan National Family Planning Program which began in July, 1965. The 12 month retention rate, including reinsertions, per 100 respondents was 56. Certain gross relationships between respondent characteristics and IUD retention were found. Respondents age 35+ and with 5+ living children and respondents who had insertions within two months postpartum had relatively high retention rates. Respondent characteristics associated with low retention rates included: age 35+ with 0–4 living children; reasons other than family planning reported as reasons for insertion; less than one-half hour travel time required to obtain insertion; not informed at time of insertion about side-effects of IUD; and insertion during last six months of 1966. Consistency of response was evaluated by reinterviewing a sample of respondents. The significance of the 43 percent non-response rate was evaluated by making further attempts to interview a sample of non-respondents.     

The risk of Telling: A Dyadic Perspective on Romantic Partners’ Responses to Child Sexual Abuse Disclosure and Their Associations with Sexual and Relationship Satisfaction

Among 70 community couples who reported childhood sexual abuse (CSA) and disclosure to their partner, this study examined associations between survivors’ perception of partner responses to their disclosure, and both partners’ sexual and relationship satisfaction. Participants completed self‐report questionnaires online. Results of path analyses within an actor–partner interdependence model indicated that survivors’ perceived partner responses of emotional support to disclosure were associated with their own and their partners’ higher sexual satisfaction. Survivors’ perceived responses of being stigmatized/treated differently by the partner were associated with their own and their partners’ poorer relationship satisfaction. Findings suggest that survivor‐perceived partner responses to the disclosure of CSA can have a positive and a negative impact on the sexual and relationship satisfaction of both partners.     

Effects of Physical and Emotional Maternal Hostility on Adolescents’ Depression and Reoffending

This study examines whether (1) mothers vary in the way they express hostility toward their delinquent adolescent offspring, (2) different types of maternal hostility differentially affect adolescents’ depression and recidivism, and (3) adolescent depression serves as a mechanism through which maternal hostility predicts later reoffending. The sample consists of 1,216 male first‐time offenders, aged 13–17 years (M = 15.80, SD = 1.29). Confirmatory factor analysis supported the premise that maternal hostility could be distinguished into two subtypes: emotional and physical hostility. Adolescent offenders who experienced emotional or physical hostility by their mothers reported greater depressive symptoms and reoffending 6 months later. Further, the relation between maternal hostility (of each type) and adolescent reoffending was partially explained by depressive symptomology.