Validation of the shortened cope for use with breast cancer patients undergoing radiation therapy

To study the relationship between cancer and emotional adjustment, investigation of situation-specific coping behaviors with respect to narrowly defined Stressors has recently been promoted. The development and validation of shorter instruments, designed to facilitate completion by clinical populations, has also been recommended. The current study examined the coping skills used by French-Canadian women undergoing radiation therapy for breast cancer. A factor analysis of the 28-item shortened COPE (Carver, Scheier, & Weintraub, 1989) yielded the following eight factors: disengagement, self-distraction, active coping, using emotional support from husband/ partner, using emotional support from friends, turning to religion, humor, and substance use. The test-retest and Cronbach alpha internal consistency reliability coefficients of the French-Canadian shortened COPE were actually higher than those observed in the full-length version of the instrument. In addition, the eight factor-based scores correlated in a theoretically meaningful manner with existing measures of coping skills with illness (Coping with Health Injuries and Problems; CHIP) and mood disturbance (Profile of Mood States; POMS), thus suggesting good construct convergent and concurrent criterion validity. In particular, the disengagement COPE scale was correlated highly with anxiety, depression, and anger. While further validation is recommended, the results show promise for the shortened COPE in assessing coping in women with breast cancer, and also provide continued evidence for the notion that specific coping skills are associated with particular mood states.     

Conditional Reinforcers and Informative Stimuli in A Constant Environment

Five pigeons responded on steady-state concurrent variable-interval variable-interval schedules of food presentation in which half of the foods were removed and replaced with nonfood stimuli. Across conditions, the stimuli were either paired or unpaired with food, and the correlation between the ratio of food deliveries on the two alternatives and the ratio of nonfood stimuli was either −1, 0, or +1. Neither the pairing of stimuli with food, nor the correlation between stimuli and food, affected generalized-matching performance, but paired stimuli had a demonstrable effect at a local level of analysis. This effect was independent of the food–stimulus correlation. These results differ from results previously obtained in a frequently changing environment. We attribute this difference in results to differences in the information value of response-contingent stimuli in frequently changing versus relatively constant environments, as well as to differences between forward pairing and simultaneous pairing of the stimuli with food.     

Common Genetic but Specific Environmental Influences for Aggressive and Deceitful Behaviors in Preadolescent Males

Although both aggressive (AGG) and deceitful behaviors (DEC) are symptoms of childhood conduct problems, few studies have examined common vs. specific etiological influences. Early intervention is encouraged for conduct problems and findings from genetically informative studies can suggest whether interventions should focus on conduct problems in general or groupings of conduct problems more specifically. Twin model-fitting analyses were conducted on same and different teacher ratings of AGG and DEC for 872 9-year old male twin pairs. Common genetic influences were found to underlie the susceptibility for both AGG and DEC. The same teacher ratings resulted in somewhat higher heritability estimates than different teacher ratings. Results also indicated stronger environmental effects for DEC as compared with AGG, with a significant shared environmental component for same teachers and a substantial non-shared environmental component for different teachers. Our data suggest that AGG and DEC share risk genes and environmental factors may differentiate these two types of conduct problems. Characterizing these specific environmental factors may be useful when developing interventions.     

Overworked and underpaid: on the nature of gender differences in personal entitlement

This research investigated gender differences in feelings of personal entitlement with respect to monetary payment for work performed. Two experiments were conducted to test the hypothesis that women's internal standards of fair pay for their work are lower than men's and to examine possible causes of this difference. In Experiment 1, men and women were asked to pay themselves in a private situation what they thought was fair pay for a fixed amount of work. Social comparison information was varied. As predicted, women paid themselves less money than men in the absence, but not the presence, of social comparison information. In Experiment 2, men and women were asked to do as much work as they thought was fair for a fixed, prepaid, amount of money. Subjects believed that their work was either monitored or unmonitored. Women worked significantly longer, did more work, and did more correct work than men in both public and private work settings. Furthermore, women, but not men, worked longer when they believed their work was monitored than when they believed it was unmonitored. Possible explanations for these gender differences are discussed.     

Order information in short-term memory and time estimation

In previous experiments, the amount of interference between time production and visual or memory search tasks was shown not to be related to the level of difficulty of the search task per se, but instead to the amount of processing in short-term memory required in the search task. The first experiment of the present study verified whether the amount of interference between time production and a short-term memory task may be related to the level of difficulty of the short-term memory task. Two versions of a memory task, with and without processing of order information, were combined with a temporal interval production task in a concurrent processing condition. As is shown in a control reaction time task, processing order information increased the level of difficulty of the memory search task. In the concurrent processing condition, the interference between short-term memory processing and time production was stronger when the level of difficulty of the short-term memory search task was increased by requiring that order information be processed. The results of Experiment 2 showed that the amount of interference between a similar short-term memory task and time production seems not to be related to the amount of order information that must be maintained during the time production task. This dissociation between the effects of processing and the maintenance of order information is compatible with a similar dissociation, observed in previous experiments, between the effects of processing and those of maintaining item information in short-term memory on concurrent time production.     

French adaptation of the shortened version of the Profile of Mood States

The French adaptation and validation of the short version of the Profile of Mood States is examined. A sample of 110 women diagnosed with breast cancer and 50 men with prostate cancer were administered the French Canadian adaptation of the shortened version of the profile (37 items). Means, test-retest correlations, and internal consistency coefficients (alpha) replicated the English initial validation. These results support the reliability of the French Canadian version. In addition, significant decrease from initial to retest testing for Anxiety, Depression, and Confusion subscales also supported construct validity.     

Processing differences between memory search and foveal visual search

The ability to detect small differences in the positions of two lines (vernier acuity) showed some improvement with practice in all eight subjects, even for subjects given no error feedback. The average decline in threshold with training (2,000–2,500 responses) was about 40%. We used three target orientations: vertical, horizontal, and right oblique. Orientational differences remained stable in only one subject. In five subjects, orientational differences present at the beginning of training diminished or disappeared with increased experience; in two, they increased.