Application of piecewise hierarchical linear growth modeling to the study of continuity in behavioral development of baboons (Papio hamadryas)

In behavioral science, developmental discontinuities are thought to arise when the association between an outcome measure and the underlying process changes over time. Sudden changes in behavior across time are often taken to indicate that a reorganization in the outcome-process relationship may have occurred. The authors proposed in this article the use of piecewise hierarchical linear growth modeling as a statistical methodology to search for discontinuities in behavioral development and illustrated its possibilities by applying 2-piece hierarchical linear models to the study of developmental trajectories of baboon (Papio hamadryas) mothers' behavior during their infants' 1st year of life. The authors provided empirical evidence that piecewise growth modeling can be used to determine whether abrupt changes in development trajectories are tied to changes in the underlying process.     

When left means right: an explanation of the left cradling bias in terms of right hemisphere specializations

Previous research has indicated that 70-85% of women and girls show a bias to hold infants, or dolls, to the left side of their body. This bias is not matched in males (e.g. deChateau, Holmberg & Winberg, 1978; Todd, 1995). This study tests an explanation of cradling preferences in terms of hemispheric specialization for the perception of facial emotional expression. Thirty-two right-handed participants were given a behavioural test of lateralization and a cradling task. Females, but not males, who cradled a doll on the left side were found to have significantly higher laterality quotients than right cradlers. Results indicate that women cradle on the side of the body that is contralateral to the hemisphere dominant for face and emotion processing and suggest a possible explanation of gender differences in the incidence of cradling.     

Comparison of several shortened versions of the EMBU: exploratory and confirmatory factor analyses

The aim of the present study was to analyze the psychometric properties of different versions of the EMBU (Egna Minnen av Barndoms Uppfostran – My memories of upbringing) in a non-clinical sample of adolescents. The factor structure of the questionnaire was studied by means of more adequate exploratory and confirmatory factor procedures in order to ascertain which version achieves a better fit to data. The 64-item version of the EMBU was administered to a non-clinical sample of 832 adolescents. Exploratory and Confirmatory factor analyses were carried out for successive versions of 64, 37, 24 and 23 items. The theoretical four-factor structure of the 64-item version is not replicated in a factor analysis through principal axis extraction with direct oblimin rotation. The "Favoring Subject" factor was not found. 37 items present loadings equal to or larger than 0.30 for the "Rejection", "Emotional Warmth" and "Overprotection" factors. A re-analysis of these items shows a clear three-factor structure. When Arrindell et al .'s (1999 ) 23-item version was analysed, the three expected factors were also found. Confirmatory factor analyses allow us to reduce the 36-item version to a shorter one of 24 items. This last version achieves the best fit to data, including the 23-item version. The new 24-item version improves the construct validity of the EMBU and presents similar reliability coefficients.     

Do parents and adolescents differ in their perceptions of rearing styles? Analysis of the EMBU versions for parents and adolescents

In the present study, memories of rearing styles between parents, mother and father, and their son/daughters were explored through the EMBU versions for parents (EMBU-P) and adolescents (EMBU-A). Results show that parents differ in three of the four scales of the EMBU: Emotional Warmth, Control Attempts, and Favoring Subject. Also, mothers score higher on Emotional Warmth, and Control Attempts, but less on Favoring Subject. When parents and adolescents were compared in the common items to both versions, no substantial differences were found, except for the Favoring Subject scale. The sex of the adolescent seems not to play a relevant role in the observed differences. A revision of specialized literature suggested that differences in the fathers' and mothers' perceptions of their rearing styles could be related to differences in personality and marital satisfaction. These hypothetical relationships should be investigated in a parallel study.     

Teaching the Candidate in Case Seminar

There has been insufficient focus on the impact and usefulness of the case seminar for teaching in psychoanalytic institutes. In order to better understand case seminar, questionnaires were submitted to candidates, graduates, and faculty in two psychoanalytic teaching institutes. The responses indicate that the case seminar format should be standardized; level of experience of candidates should be similar; professors should examine suitability of the case beforehand; and candidates need to be prepared for the group process. Findings are useful in improving the teaching of psychoanalysis and encouraging the creative use of the candidate's self in psychoanalytic training.     

Relational factors and family treatment engagement among low-income,HIV-positive African American mothers

Clinically derived hypotheses regarding treatment engagement of families of low-income, HIV-positive, African American mothers are tested using univariate and multivariate logistic regression models. Predictors are baseline family relational factors (family support, mother's desire for involvement with family, and family hassles) and mother's history of substance dependence. The study examines a subsample of 49 mothers enrolled in a clinical trial testing the efficacy of Structural Ecosystems Therapy (SET). SET is a family-based intervention intended to relieve and prevent psychosocial distress associated with HIV/AIDS. Participants in the subsample were randomly assigned to SET and attended at least two therapy sessions. Findings reveal that family relational factors predicted family treatment engagement (family support, p < .004; mother's desire for involvement with family, p < .008; family hassles, p < .027). Family support predicted family treatment engagement beyond the prediction provided by the other relational factors and the mother's own treatment engagement (p < .016). History of substance dependence was neither associated with family treatment engagement nor family support. Post hoc analyses revealed that family hassles (p < .003) and mother's desire for involvement with family (p < .018) were differentially related to family treatment engagement in low- versus high-support families. Implications for clinical practice and future research are discussed.     

Possible selves of individuals with Alzheimer's disease

This study is one of the first to examine self-goals and their relationship to affect among individuals with Alzheimer's disease (AD). Using the construct of possible selves, the authors collected data from 50 participants with mild to moderate AD and 50 demographically similar cognitively intact older adults. Findings suggest a resourcefulness and flexibility of the self-system in response to the presence of dementia-related concerns. Positive affect was associated with family-related self-goals of AD participants, indicating particular importance of this domain. Some of these responses may represent goal modifications that result in a more satisfactory adjustment to the illness; further inquiry may lead to a better understanding of resiliency and quality of life in persons with AD.     

Mental Representation of Familiar Others: The Impact of Occupation,Sex, and Race

The current study used a double primed semantic decision task to investigate the role of social group information in mental representations of familiar others. Extrapolating from social role theory, we predicted that social role information would facilitate responding to familiar targets regardless of the specific task at hand. The names of celebrities were used as stimuli, as people know them because of their social role (i.e., their occupation). Primes and targets were matched (or mismatched) on all combinations of sex, race, and occupation. Participants were randomly assigned to task condition: indicating whether the prime and target were (a) of the same sex or not, (b) of the same race or not, or (c) of the same occupation or not. Results indicated that participants responded faster to celebrity prime-target pairs that were matched on occupation regardless of task condition. In addition, participants responded faster to celebrity prime-target pairs that were matched on sex—but only when sex was relevant to the task. Similar findings were not found for race. The implications of these findings for understanding mental representations of familiar others and for person perception are discussed.