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811.

Purpose  

The purpose of this investigation was to develop a multidimensional measure of continuance organizational commitment, specifying dimensions for continuance commitment based on the perception of beneficial economic exchanges versus the perception of low job alternatives.  相似文献   
812.
Chronic tic disorders (CTDs) involve motor and/or vocal tics that often cause substantial distress and impairment. Differential reinforcement of other behavior (DRO) schedules of reinforcement produce robust, but incomplete, reductions in tic frequency in youth with CTDs; however, a more robust reduction may be needed to affect durable clinical change. Standard, fixed‐amount DRO schedules have not commonly yielded such reductions, so we evaluated a novel, progressive‐amount DRO schedule, based on its ability to facilitate sustained abstinence from functionally similar behaviors. Five youth with CTDs were exposed to periods of baseline, fixed‐amount DRO (DRO‐F), and progressive‐amount DRO (DRO‐P). Both DRO schedules produced decreases in tic rate and increases in intertic interval duration, but no systematic differences were seen between the two schedules on any dimension of tic occurrence. The DRO‐F schedule was generally preferred to the DRO‐P schedule. Possible procedural improvements and other future directions are discussed.  相似文献   
813.
814.
Suicide is the second leading cause of death among adolescents, and impulsivity has emerged as a promising marker of risk. The present study tested whether distinct domains of impulsivity are differentially associated with suicide ideation, plans, and attempts. Adolescents (n?=?381; boys?=?106, girls?=?275) aged 13–19 years (M?=?15.62, SD?=?1.41) were recruited from an acute, residential treatment program. Within 48 h of admission to the hospital, participants were administered structured clinical interviews assessing mental health disorders and suicidality. Following these interviews, participants completed self-report questionnaires assessing symptom severity and impulsivity. Consistent with past research, an exploratory factor analysis of our 90-item impulsivity instrument resulted in a three-factor solution: Pervasive Influence of Feelings, Feelings Trigger Action, and Lack of Follow-Through. Concurrent analysis of these factors confirmed hypotheses of unique associations with suicide ideation and attempts in the past month. Specifically, whereas Pervasive Influence of Feelings (i.e., tendency for emotions to shape thoughts about the self and the future) is uniquely associated with greater suicidal ideation, Feelings Trigger Action (i.e., impulsive behavioral reactivity to emotions) is uniquely associated with the occurrence of suicide attempts, even after controlling for current psychiatric diagnoses and symptoms. Exploratory gender analyses revealed that these effects were significant in female but not male adolescents. These findings provide new insight about how specific domains of impulsivity differentially increase risk for suicide ideation and attempts. Implications for early identification and prevention of youth suicide are discussed.  相似文献   
815.
Recent conceptual work draws meaningful distinctions between experiential and declarative well‐being (Shmotkin, 2005 ), but little has been done to apply such distinctions in organisational psychology. We use this framework to integrate self‐determination theory (Deci & Ryan, 1985 ) and flow theory (Csikszentmihalyi, 1975 ), leading to hypotheses proposing that flow experiences at work (experiential well‐being) lead to declarative well‐being outcomes through their influence on the satisfaction of basic psychological needs for competence and autonomy. Findings from a two‐week experience sampling study of full‐time employees offer support for our hypotheses. This study also shows support for the moderating effect of individual differences in personality on the relationships among flow experiences, need fulfillment, and declarative well‐being.  相似文献   
816.
The purpose of this study was to examine the differential effects of 2 versions of the Good Behavior Game (Barrish, Saunders, & Wolf, 1969), allocating teacher attention to rule violations (GBG-response cost) and to rule following (GBG-reinforcement), on student and teacher behavior. The participants were 6 kindergarten students who were nominated as the 3 most disruptive students in each classroom. The study was conducted using single-case A/B/A/C/B/C reversal design with each teacher randomly assigned to either GBG-response cost or GBG-reinforcement condition for implementation in the first B phase. Results indicated that both versions were effective at reducing rule violations and that GBG-reinforcement consistently resulted in either comparable or lower levels of rule violations across classrooms and students. In addition, GBG-reinforcement was preferred by the teachers as a better fit to their classrooms. The implications of the findings to teachers and school psychologists in classroom settings are discussed.  相似文献   
817.
Modern cognitive neuroscientific theories and empirical evidence suggest that brain structures involved in movement may be related to action-related semantic knowledge. To test this hypothesis, we examined the naming of environmental sounds in patients with corticobasal degeneration (CBD) and progressive supranuclear palsy (PSP), two neurodegenerative diseases associated with cognitive and motor deficits. Subjects were presented with 56 environmental sounds: 28 sounds were of objects that required manipulation when producing the sound, and 28 sounds were of objects that required no manipulation. Subjects were asked to provide the name of the object that produced the sound and also complete a sound-picture matching condition. Subjects included 33 individuals from four groups: CBD/PSP, Alzheimer disease, frontotemporal dementia, and normal controls. We hypothesized that CBD/PSP patients would exhibit impaired naming performance compared with controls, but the impairment would be most apparent when naming sounds associated with actions. We also explored neural correlates of naming environmental sounds using voxel-based morphometry (VBM) of brain MRI. As expected, CBD/PSP patients scored lower on environmental sounds naming (p < 0.007) compared with the controls. In particular, the CBD/PSP patients scored the lowest when naming sounds of manipulable objects (p < 0.05), but did not show deficits in naming sounds of non-manipulable objects. VBM analysis across all groups showed that performance in naming sounds of manipulable objects correlated with atrophy in the left pre-motor region, extending from area six to the middle and superior frontal gyrus. These results indicate an association between impairment in the retrieval of action-related names and the motor system, and suggest that difficulty in naming manipulable sounds may be related to atrophy in the pre-motor cortex. Our results support the hypothesis that retrieval of action-related semantic knowledge involves motor regions in the brain.  相似文献   
818.
This study examined fairness reactions to 10 selection methods in a sample of 240 Romanian employees. The results showed that Romanian employees rated work samples, interviews, written ability tests, and resumes as favorable, but graphology, ethnicity, and personal contacts as unfavorable. Perceived predictive validity was identified as the strongest predictor of process favorability ratings. Implications for research and practice are discussed.  相似文献   
819.
Researchers have operationalized communal and exchange relationship perceptions as either mutually exclusive categories or opposite ends of a continuum. This research conceptualizes these relationships as distinct constructs that should be measured separately. We develop multi-item measures of communal and exchange relationship perceptions and find that they are actually positively correlated. We also examine the way communal and exchange relationship perceptions combine to influence intrinsic, extrinsic, and social motivations to donate, a category stipulated in economics, but not in psychology. We find that both relationship perceptions influence consumer attitudes toward donating through a mix of intrinsic, extrinsic, and social motivations.  相似文献   
820.
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