The Stress-Arousal Checklist as a measure of situational stress versus simple arousal

The Stress-Arousal Checklist was developed as a self-report measure both of arousal and of the favorable or unfavorable appraisal of that arousal. Previous studies with the checklist showed differential sensitivity of the two subscales to experimental manipulations. In the present study, the convergent and discriminant validity were further explored by comparing scores with those on the State-Trait Anxiety Inventory-State. The results supported the validity of the two-factor structure.     

The presence of bulimia in high school females

The purpose of this study is to show that the appetite disorder bulimia is present in high school females. Previous research has shown the presence of bulimia in college women. The study was conducted using the entire female population of a large suburban, midwestern community high school. The Eating Disorder Inventory was used to identify the presence of bulimia. Data collected were classified for analysis using the bulimia scale as identified by the EDI. Using analysis of variance (ANOVA) these data were compared on each of the seven scales using bulimia diagnosis and age. The correlation was significant (.01) on five of the seven scales. It was concluded that there is a bulimic population at the high school level which includes females, ages 14-18. The percentages of bulimic females in categories of black, white and others were equal. This is significant because bulimia has not previously been recognized as present in the black population. Knowledge of the attitudes of bulimic students will help those professionals who work with adolescents to recognize bulimic behavior. Community referral agencies and individuals who can help the affected and provide support for the family should be identified and utilized.     

Response–reinforcer dependency and resistance to change

The effects of the response–reinforcer dependency on resistance to change were studied in three experiments with rats. In Experiment 1, lever pressing produced reinforcers at similar rates after variable interreinforcer intervals in each component of a two‐component multiple schedule. Across conditions, in the fixed component, all reinforcers were response‐dependent; in the alternative component, the percentage of response‐dependent reinforcers was 100, 50 (i.e., 50% response‐dependent and 50% response‐independent) or 10% (i.e., 10% response‐dependent and 90% response‐independent). Resistance to extinction was greater in the alternative than in the fixed component when the dependency in the former was 10%, but was similar between components when this dependency was 100 or 50%. In Experiment 2, a three‐component multiple schedule was used. The dependency was 100% in one component and 10% in the other two. The 10% components differed on how reinforcers were programmed. In one component, as in Experiment 1, a reinforcer had to be collected before the scheduling of other response‐dependent or independent reinforcers. In the other component, response‐dependent and ‐independent reinforcers were programmed by superimposing a variable‐time schedule on an independent variable‐interval schedule. Regardless of the procedure used to program the dependency, resistance to extinction was greater in the 10% components than in the 100% component. These results were replicated in Experiment 3 in which, instead of extinction, VT schedules replaced the baseline schedules in each multiple‐schedule component during the test. We argue that the relative change in dependency from Baseline to Test, which is greater when baseline dependencies are high rather than low, could account for the differential resistance to change in the present experiments. The inconsistencies in results across the present and previous experiments suggest that the effects of dependency on resistance to change are not well understood. Additional systematic analyses are important to further understand the effects of the response–reinforcer relation on resistance to change and to the development of a more comprehensive theory of behavioral persistence.     

Conducting community‐based participatory research in an urban Malaysian community: Lessons learned and challenges in establishing partnerships

This paper presents the process of how partnerships are established between an urban residential community and an academic institution in Malaysia by employing community‐based participatory research, which involves researchers, community members, and organizational representatives as coresearchers. The research process encompasses colearning, power sharing, and coconstructing of knowledge, with the community members driving the research direction. The research paradigm is grounded on conducting research with the community. This paper highlights the experience and lessons learned while applying the principles of community‐based participatory research that promotes social participation of older persons living in a residential community. Two pertinent challenges surface in the research process. The first challenge involves the complexity noted in the gap between the emancipation of community‐based participatory research and the hierarchical social structure of the society. The second challenge is the prevalence of unspoken yet subtle domination that undermines the local cultural values affecting the process of coconstructing knowledge with the community. Recommendations for addressing these challenges include future partnerships with other Malaysian communities as well as cross‐border research partnerships.