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231.
Two experiments examined the influence of postconditioning treatments of contextual cues on instrumental responding acquired with a signaled delay of reinforcement schedule. In Experiment 1, mere exposure to the conditioning context after instrumental training resulted in an attenuated response rate during an extinction test. In the second experiment, responding was decreased by exposure to the contextual cues or sessions in which signaled noncontingent reinforcements occurred. The greatest response decrement, however, occurred following unsignaled noncontingent food presentations. The results are discussed with respect to the different roles of contextual cues on operant responding.  相似文献   
232.
Six subjects, comprising one class at a school for the deaf, were given reinforcement consisting of time free from school work for remaining seated in the classroom. As a result, the frequency of leaving their chairs was sharply reduced. A second procedure presented free-time not contingent on remaining seated. Little change was seen in the already lowered response rate. An extension of the time required to be seated with corresponding reduction in the number of daily free-time periods did not reduce the effectiveness of the procedure. A one-day observation after six weeks indicated that the procedure was still effective. A one-day contingency reversal, requiring subjects to leave their chairs at least once during each seated period in order to receive free-time, substantially raised the frequency of out-of-seat responses.  相似文献   
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This experiment examined changes in anxiety and differences in aggression for high and low assertive women when different degrees of conflict were encountered. As predicted, low assertive women were intially more uneasy or anxious than high assertive women when they were placed in a conflictual situation. When the level of actual conflict was low, the level of anxiety of low assertive women decreased. However, when the actual level of conflict was high the anxiety level of low assertive women remained unchanged. These results were taken as support for the fear of conflict hypothesis which predicted that the reduction in anxiety for low assertive persons is contingent upon whether or not the anticipated conflict is actually encountered. The results also indicated that high assertive women were not significantly more aggressive than low assertive women. This finding provided support for Galassi's position that assertiveness and aggression are distinct concepts.  相似文献   
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Counselling in primary care in the UK is expanding rapidly, and its evidence base needs to be established. We present the rationale for conducting controlled trials of counselling in primary care, and suggest that a systematic review of controlled trials of counselling in primary care is timely. We describe the process of conducting the review in accordance with Cochrane Collaboration guidelines. The review aimed to assess the effectiveness and cost-effectiveness of counselling in primary care, by systematically reviewing cost and outcome data from randomised controlled trials and controlled patient preference trials of counselling interventions, for patients with psychological and psychosocial problems considered suitable for counselling. The search strategy, inclusion and exclusion criteria, data collection and data analysis are described. The results of the review are presented. The review included only controlled trials of counselling in which counsellors accredited by the British Association for Counselling (or equivalent) provided non-directive counselling in primary care. Four trials met the inclusion criteria. Results indicated that patients who receive counselling show a modest but significant improvement in symptom levels compared with those who receive GP care. Levels of satisfaction with counselling are high. There is very tentative evidence to suggest that counselled patients are more likely to be considered recovered than usual GP care patients. There is limited information about the cost-effectiveness of counselling. We conclude by reflecting upon the results of the review and their implications for counselling research.  相似文献   
239.
Deviations from otherwise reliable patterns of responding in human performance on schedules of reinforcement could be associated with personality characteristics, such as psychometrically-measured schizotypy. The present study examined differences between high and low scorers on four schizotypy subscales (unusual experiences, cognitive disorganisation, introvertive anhedonia and impulsive non-conformity) on a random-ratio (RR) and random-interval (RI) schedule of reinforcement. Results showed a higher rate of responding on the RR than RI schedule, consistent with the differences in performance normally observed between these schedules. However, these differences were dependant on whether or not participants scored high or low on the schizotypy subscales, as well as the specific schedule parameters between the schedules. Specifically, high scorers on the unusual experiences (UE) subscale of the O-LIFE(B) were the only group in Experiment 1 not to show a difference in schedule performance, suggesting high scores on this subscale are linked to altered RR and RI performance. Experiment 2 explored this finding further using different schedule parameters, and confirmed that high scorers in UE did not differ in response rates between the two schedules.  相似文献   
240.
This investigation examined patient–provider communication about sexual health related to gender and age. Data were collected from 277 individuals, aged 18–60, via convenience and snowball sampling at a large university in southwestern United States. Results indicate women are more proactive about their sexual health than men and tested for STDs more frequently. Women, more than men, initiate discussions with their healthcare provider about sexual health matters and healthcare providers are more likely to initiate communication about such matters with women than men. Men hold stronger gender-stereotypical beliefs than women, are less likely to initiate conversations about sexual issues with their provider, and believe sexual discussions with their partner are inappropriate. Age relates to sexual activity initiation and perceived STD risk.  相似文献   
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