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191.
Richard H. Wilcox 《Psychometrika》1957,22(3):269-274
When an information processing system is faced with an excess of input information the task of selecting the items which are to get immediate processing is frequently assigned to a human being. A quantitative measure of the extent to which a man avoids random activity during such filtering operations is derived in terms of two parameters (normalized overload and correct proportion of selections) which are determined from experimentally available quantities. This coherence measure may be used for studies of random behavior, comparison of rules for selecting items, and perhaps prediction of human performance at filtering tasks.The author is particularly indebted to Dr. Harold Glaser, of the U. S. Naval Research Laboratory, for many helpful suggestions during the development of this measure. 相似文献
192.
Geoffrey M. Reed Shelley E. Taylor Margaret E. Kemeny 《Journal of applied social psychology》1993,23(10):791-824
The relationship of control beliefs to psychological adjustment was investigated in a sample of 24 gay men diagnosed with AIDS, participants in the University of California, Los Angeles site of the Multicenter AIDS Cohort Study (MACS). Distinctions between generalized contingency beliefs and specific competence beliefs and between personal and vicarious control beliefs were included in the questionnaire and interview measures administered. The results support these distinctions and indicate that beliefs in personal control over day-to-day symptoms and over course of illness were positively related to adjustment, whereas beliefs in control by others over course of illness and over medical care and treatment were negatively related to adjustment. These relationships appeared to be strongest for men who reported poorer health. These associations were not accounted for by locus of control beliefs, negative affectivity, or time since diagnosis with AIDS. 相似文献
193.
Rand R. Wilcox 《Psychometrika》1993,58(1):71-78
Methods for comparing means are known to be highly nonrobust in terms of Type II errors. The problem is that slight shifts from normal distributions toward heavy-tailed distributions inflate the standard error of the sample mean. In contrast, the standard error of various robust measures of location, such as the one-step M-estimator, are relatively unaffected by heavy tails. Wilcox recently examined a method of comparing the one-step M-estimators of location corresponding to two independent groups which provided good control over the probability of a Type I error even for unequal sample sizes, unequal variances, and different shaped distributions. There is a fairly obvious extension of this procedure to pairwise comparisons of more than two independent groups, but simulations reported here indicate that it is unsatisfactory. A slight modification of the procedure is found to give much better results, although some caution must be taken when there are unequal sample sizes and light-tailed distributions. An omnibus test is examined as well. 相似文献
194.
Shelley E. Taylor Lisa G. Aspinwall Traci A. Giuliano Gayle A. Dakof Kathleen K. Reardon 《Journal of applied social psychology》1993,23(9):703-733
Three studies explored the coping benefits and limitations of stories people hear about others undergoing similar stressful events. In Study One, cancer patients reported that positive stories about other patients were preferable to and more helpful than negative stories, yet negative stories were more commonly told. Study Two manipulated the valence and source of stories told to college students facing midterm exams. Stories with positive endings and those relayed by expert sources were regarded more positively than negative stories and those told by nonexperts. Study Three manipulated the valence and informativeness of stories in a similar college sample. Positive and informative stories were rated more favorably, although these effects were independent of each other. Implications for social comparison and social support are discussed. 相似文献
195.
An algorithm is presented for computing a test statistic for comparing medians based on a small-sample size estimate of the variance of the usual sample median. 相似文献
196.
197.
S. Janet Kuramoto MHS David A. Brent MD Holly C. Wilcox PhD 《Suicide & life-threatening behavior》2009,39(2):137-151
Child and adolescent survivors of parental suicide experience two stressful events simultaneously: (1) the loss of a primary caregiver, and (2) suicidal death of a significant person. These youths are thought to be at increased risk for mental health problems, but a systematic review of studies on these survivors has not yet been conducted. A comprehensive search for published literature identified nine studies. The existent studies provided modest yet inconsistent evidence on the impact of parental suicide on offspring psychiatric and psychosocial outcomes. More methodologically rigorous research is needed to inform and guide postvention efforts for these survivors. 相似文献
198.
199.
Holly E. Brophy‐Herb Mildred Horodynski Sara B. Dupuis Erika London Bocknek Rachel Schiffman Esther Onaga Laurie A. Van Egeren Hiram E. Fitzgerald Mary Cunningham‐Deluca Shelley Hawver Madonna Adkins Sarah Thomas 《Infant mental health journal》2009,30(3):203-222
As part of a curriculum‐development project, focus groups were implemented with Early Head Start staff and with parents of infants and toddlers enrolled in Early Head Start. Focus groups were designed to identify staff and parent beliefs about early emotional development. Three major themes were identified that crossed the staff and parent focus groups: (a) Infants' and toddlers' abilities to have emotions and to be aware of others' emotions; (b) roles of parents as advocates, teachers, and disciplinarians; and (c) parental reflectivity about their own experiences as influences on their parenting. The findings suggest that parents participating in Early Head Start have some knowledge about basic emotions and the developmental nature of emotions, but may easily misinterpret emotional displays only as attempts at manipulation rather than as valid expressions of feelings; expectations for gender‐appropriate emotional expressiveness begin early; more empowered parents may view themselves as role models and teachers for their children; and more reflective parents are better prepared to engage in the sensitive interactions needed to guide young children's growing awareness of their own and others' emotions. Implications for parenting education and program planning utilizing an infant mental health perspective are discussed. 相似文献
200.
Childhood Abuse,Nonsuicidal Self‐Injury,and Suicide Attempts: An Exploration of Gender Differences in Incarcerated Adults 下载免费PDF全文
Jenelle Power PhD Renee Gobeil PhD Janelle N. Beaudette MA Mary B. Ritchie BA Shelley L. Brown PhD Hayden P. Smith PhD 《Suicide & life-threatening behavior》2016,46(6):745-751
The relationship between types of childhood abuse, suicide attempts, and nonsuicidal self‐injury (NSSI) was examined in a sample of 415 incarcerated adults (268 men, 147 women). Men and women were equally likely to experience childhood abuse, although women were more likely to report sexual abuse and men were more likely to report emotional neglect. Sexual abuse was the only type of abuse found to predict NSSI and suicide attempts in women. For men, physical abuse and physical neglect were significant predictors of NSSI and suicide attempts, respectively. Gender differences exist and should be examined in future research in this area. 相似文献