Genetic analysis of “Spontaneous” intermale aggression in mice

“Spontaneous” intermale aggression was investigated in seven inbred strains of mice. A positive interstrain correlation and cross-correlation was found for two indices of fighting intensity, ie, accumulated attacking time and number of attacks. The strain aggressiveness level (percent of mice fighting in each strain) does not correlate with the intensity of aggressive behavior. It has been shown by using a genetical analysis performed on C57BL/6 and BALB/c strains, their reciprocal F₁ hybrids, and back-crosses that these indices of intermale aggression are under different genetic control. Aggressive behavior intensity depends on the additive effects of genes. The control of strain aggressiveness level revealed that a high level of aggressiveness was dominant. No reciprocal effects were found. The level of aggressiveness and the intensity of fighting seem to represent different aspects of aggression and may be controlled by different genetic mechanisms.     

Development of the near-death phenomena knowledge and attitudes questionnaire

In the first study of nurses' knowledge of and attitudes toward near-death phenomena and patients who have experienced them (NDErs), 20 registered nurses in Intensive or Cardiac Care Units completed a questionaire containing 29 true/false/undecided statements about near-death phenomena (alpha reliability .83), 29 Likert items concerning attitudes toward such phenomena (alpha .84), and 25 Likert items concerning attitudes toward care of NDErs (alpha .81). The revised questionnaire has high levels of content and construct validity, and acceptable levels of internal consistency, and is therefore a valid and reliable tool.This paper was derived in part from her M.S.N. thesis submitted to the University of Cincinnati, and was based on a study conducted at the University of Cincinnati Medical Center.     

Accuracy and differentiation in social prediction: A developmental perspective1

Two studies examined the accuracy and differentiation of 4–5-yearolds‘, 8–9-year-olds’, and undergraduates' predictions of the preferences of peers and nonpeers. In Study 1 each subject was presented with separate arrays of snacks, meals, and activities depicted on cards and were asked to select their own preferences and the preferences of peers and nonpeers (“grown-ups” for the children, and “4- to 5-year-olds” for the undergraduates). In Study 2 each subject selected his or her own preference, the preference of peers, and the preferences of both older nonpeers (“grown-ups”) and younger nonpeers (“2-year-olds”). For all age groups, including 4–5-year-olds: (1) the preference predictions differentiated peers from nonpeers, as well as older nonpeers from younger nonpeers; (2) it was very rare for a subject to select his or her own preferences for the preference predictions of both peers and nonpeers. There were no consistent developmental differences either in the tendency to select one's own preferences when predicting the preferences of others or in the tendency to differentiate predictions for peers and nonpeers. In contrast, there was a clear developmental increase in predictive accuracy, with 4–5-year-olds being relatively inaccurate in predicting the preferences of nonpeers. The inadequacy of constructs such as “assumed similarity” and “egocentrism” as explanations for the general accuracy in predicting peers' preferences and the 4–5-year-olds' inaccuracy in predicting nonpeers' preferences is discussed. Possible alternative variables underlying developmental increases in judgmental accuracy, such as “social reference,”“self reference,” and “social category knowledge,” are then proposed.     

Reflections on the Evaluation of a Cambodian Youth Dance Program

Evaluating a youth program whose goals are to provide instruction in Cambodian dance, increase awareness and pride in Cambodian culture, promote healthy behaviors, and create linkages within the community has been a challenge. A primary source of conflict was incorporating evaluation methods that were required of all funded programs with our own specifically tailored measures. One of our concerns was that the required tools were not culturally appropriate for our participants. Our experiences reinforce the importance of forming partnerships that embrace principles of respect, equity, and empowerment among all involved before establishing a research agenda. The choices we made and did not make contributed to our struggles and frustration and also to the insight that was gained. Our analysis examines the importance of clear communication, cultural awareness, tailoring evaluation, and meaningful participation. We believe that the lessons we learned will help facilitate the conduct of culturally sensitive community-based research.     

Product involvement: an application in clothing

• The paper examines the dimensionality of involvement with clothing. The extant literature is reviewed to show the origins, application and classification of involvement. The discussion focuses on enduring, situational and response involvement, emphasising the dimensionality of the construct. The research examines enduring involvement with clothing, using a scale of 15 Likert‐type statements to operationalise the concept. The findings suggest that involvement with clothing stems from: (1) pleasure and enjoyment derived from shopping and (2) the importance consumers attach to the product, which relates to the symbolic nature of clothing as a means of self‐expression.

Copyright © 2006 John Wiley & Sons, Ltd.     

The longitudinal structure of the Children's Depression Inventory: testing a latent trait-state model

In a 6-wave longitudinal study, children (Grades 4-6, n = 648), adolescents (Grades 7-9, n = 1,489), and their parents completed child-adolescent or parent versions of the Children's Depression Inventory (CDI; M. Kovacs, 1981). Using structural equation modeling, the authors conducted latent trait-state analyses to distinguish between a stable trait dimension of depression (in which individual differences are stable over time) and an autoregressive dimension (in which individual differences are less stable over time). Children's CDIs reflected the autoregressive dimension more than a stable trait dimension, whereas parents' CDIs reflected a stable trait dimension more than an autoregressive dimension. Reports from adolescents and their parents reflected a stable trait dimension more than an autoregressive dimension of depressive symptoms. Results suggest that the longitudinal structure of the CDI varies considerably depending on the age of the target and the type of informant.     

Men’s Decision-Making About Predictive <Emphasis Type="Italic">BRCA1/2</Emphasis> Testing: The Role of Family

Men who have a family history of breast and/or ovarian cancer may be offered a predictive genetic test to determine whether or not they carry the family specific BRCA1/2 mutation. Male carriers may be at increased risk of breast and prostate cancers. Relatively little is known about at-risk men’s decision-making about BRCA1/2 testing. This qualitative study explores the influences on male patients’ genetic test decisions. Twenty-nine in-depth interviews were undertaken with both carrier and noncarrier men and immediate family members (17 male patients, 8 female partners, and 4 adult children). These explored family members’ experiences of cancer and genetic testing, decision-making about testing, family support, communication of test results within the family, risk perception and risk management. Implicit influences on men’s testing decisions such as familial obligations are examined. The extent to which other family members—partners and adult children—were involved in testing decisions is also described. It is demonstrated that mothers of potential mutation carriers not only perceive themselves as having a right to be involved in making this decision, but also were perceived by their male partners as having a legitimate role to play in decision-making. There was evidence that (adult) children were excluded from the decision-making, and some expressed resentment about this. The implications of these findings for the practice of genetic counseling are discussed.     

Divorce in the Kibbutz: Determinants of emotional adjustment

About two-thirds of a representative sample of kibbutz divorced subjects reached a satisfactory emotional and functioning level of adjustment with a high degree of cooperation between the exspouses by the second postseparation year. This outcome appears to be positively influenced both by a process of habituation and desensitization determined by the continuous physical proximity of the former spouses and by the neutralization of parenting and economic issues as subjects for dispute and litigation.