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21.
In a pilot study, a multielement design was used to assess the effectiveness of a response cost procedure on a 7-year-old child's hyperactive behavior and academic performance across days. The procedure was effective in reducing off-task behavior and in increasing academic assignment completion. In Experiment 2, three strategies were compared to a no-treatment baseline in treating an 8-year-old hyperactive child: drug (Ritalin) alone, response cost alone, and drug plus response cost. The cost program alone and the cost program combined with medication were effective in reducing off-task behavior and in increasing academic performance. In both studies, the procedure was viewed by the teachers as practical and effective for use in a classroom setting. The subjects liked the cost system and believed that they completed more academic work when it was operative.  相似文献   
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Three groups of white children, 43 preschoolers and first-graders, 46 third-graders, and 44 fifth-graders, were asked to choose either a white child or a black child as a recipient of sharing and also as a companion for several social interaction situations ordered for social distance. The preschoolers and first-graders preferred to share and interact socially with the white child. The third-graders and the fifth-graders displayed a weaker preference for the white child over the black child on the sharing task, no preference in situations of high social distance, and a preference for the white child in situations of low social distance. The results from ancillary measures suggested that the choices of the younger children were motivated by a generalized color preference but that the choices of the older children were guided by an awareness of the social meaning of racial categories.The investigation was supported by the Research Advisory Council of East Tennessee State University.  相似文献   
24.
The effectiveness of an advice package designed to restructure the restaurant environment and encourage parent praise was examined. Experiment 1 assessed the usefulness of the package when used with experimenter assistance. Videotapes were used to record the target child's behavior. Pre-meal inappropriate behavior decreased an average of 51% across target children. Mealtime inappropriate behavior and parent praise and disapproval were also measured. Experiment 2 was designed to determine whether families could implement the package without experimenter assistance and whether effects obtained would generalize to a different restaurant. Data were taken in vivo. Nine families were randomly assigned to one of three groups. Group assignment determined the order in which families went to two restaurants, the number of dinners each family participated in, and the point at which parents received the advice package. The order in which the families went to the two restaurants as well as the number of baseline meals was counterbalanced. Results of Experiment 2 showed that, when using the advice package, parents in all sequences were able to decrease pre-meal inappropriate behavior of their children, and that these effects generalized to a second restaurant.  相似文献   
25.
This study demonstrated the use of quantitative content validity procedures in the development of a job-related behavioral rating scale criterion for entry-level psychiatric aides. Work behavior items were developed by staff from 6 state psychiatric hospitals, placed in a content validity questionnaire using the Lawshe format, and given to a representative sample of 38 aides and supervisors. Seventy-eight of 83 items were found to be significantly job-relevant using the computation procedures of both Lawshe and Aiken. After the significant items were grouped into 4 categories with high interjudge agreement and placed in a rating scale format, ratings were obtained on 72 psychiatric aides from 4 hospitals. Items in the 4 categories were found to be internally consistent using coefficient alpha. Significant but low concurrent validities were established for 2 verbal ability selection tests using the rating criterion. The validities found were interpreted to be especially significant when the factors of low selection ratio, restriction in range, and limited rater training were considered.  相似文献   
26.
The deterrent effect of capital punishment during the 1950s   总被引:1,自引:0,他引:1  
This investigation examines the deterrence hypothesis of an inverse relationship between state execution rates and homicides. Although this question has received some attention in recent studies, the findings of these investigations are mixed. Cross-sectional analyses of states have typically shown execution and homicide rates to be positively associated, while at least two national time-series studies report support for the deterrence hypothesis. To test whether these divergent findings are result of the two different methodologies employed (cross-sectional vs. time-series), a methodology that combines the strengths of each is used in the present study. For the period 1950 to 1960, we examine cross-sectionally for states the relationship between changes in execution rates and changes in murder rates. This analysis does not find support for the deterrence argument for the certainty of the death penalty when a number of models of the execution rate--murder rate relationship are considered, and when a variety of imprisonment and socio-demographic factors are considered as control variables.  相似文献   
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Fathers' involvement in the routine healthcare of young children was investigated, and fathers' relative participation in two tasks, staying home with a sick child and taking the child to the doctor or dentist, was assessed. The relationships between fathers' involvement in healthcare and several other measures, including mothers' employment status, fathers' attitudes toward women's rights and roles, the amount of time fathers spent at work, and fathers' involvement in housework, were also examined. The subjects were 50 fathers of young children in intact, White, middle-class families. Both staying home with a sick child and taking a child to the doctor or dentist were usually performed by mothers, but when mothers were employed, fathers were significantly more involved, regardless of the child's sex. Staying home with a sick child and taking a child to the doctor or dentist were positively related to fathers' involvement in housework. Fathers' staying home with a sick child was significantly correlated with fewer hours at work and liberal attitudes toward women's rights and roles; these variables were not related to taking a child to the doctor or dentist. Positive correlations between fathers' involvement in housework and staying home with a sick child and taking a child to the doctor or dentist suggests that fathers' involvement in childcare is viewed as an aspect of family work.  相似文献   
29.
The effect of coaching on Leaderless Group Discussion Performance was examined. Thirty-six female undergraduate subjects participated in six-person assigned role leaderless group discussions. Trained observers evaluated performances in each discussion, which included two 5s from each of three coaching conditions. Ss in full coaching condition received extensive coaching on proper group discussion performance. 5s in the errant coaching condition received improper, but believable, coaching. 5s in the naive, or control, condition received no coaching. Results showed that 5s in the full coaching conditions were rated significantly higher than 5s in the errant or naive conditions. The results were discussed in the light of previous research.  相似文献   
30.
A within-subject comparison was made of the effects of methylphenidate (Ritalin) and response cost in reducing the off-task behavior of two boys, 7 and 8 years of age, who had been diagnosed as having an attentional deficit disorder with hyperactivity. Several dosages of Ritalin (5 to 20 mg/day) were evaluated with the results indicating varying effects of the drug for both children. Response cost (with free-time as the reinforcer) was superior to Ritalin in raising levels of on-task behavior and in improving academic performance.  相似文献   
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