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71.
Harold Webster 《Psychometrika》1956,21(2):153-164
The exact condition for discardingk items from a test in order to obtain a residual test with higher validity is derived. A proof that validity always increases is given for the casek=1. The lack of uniqueness of maximum validity when achieved by use of the condition is discussed. With the use of additional restrictions on items to be included in the initial test, a practical test construction procedure which has several advantages over previous methods is developed. The homogeneity of tests constructed by the method is discussed, and applications are given. 相似文献
72.
73.
Rosemary Pierrel J. Gilmour Sherman 《Journal of the experimental analysis of behavior》1962,5(1):67-71
Three groups of four rats were trained on an auditory-intensity discrimination for 21 days. The SD-SΔ intensity difference for Group I was 10 db; for Group II, 20 db; and for Group III, 30 db. Following the initial discrimination training, the animals were tested for generalization of the bar-press response to seven novel SΔ's which were presented intermingled with the original SD and SΔ values. Conclusions: (1.) The amount of simple discrimination training required to obtain fairly stable differences in SD and SΔ responding is an inverse function of the magnitude of the stimulus difference between SD and SΔ. (2.) Generalization gradients obtained immediately following simple discrimination training exhibit a maximum displaced from SD in a direction also away from SΔ. (3.) Gradients obtained following continued exposure to the multivalued SΔ situation show a fairly stable maximum at the SD value. (4.) Although the gradients tend to fall off systematically on either side of the continuum as distance from SD is increased, they decrease most rapidly on the SΔ limb of the gradient. 相似文献
74.
75.
Gabrielle Brand Karen Miller Steve Wise Rosemary Saunders Helen Dugmore Christopher Etherton-Beer 《Reflective Practice》2016,17(6):676-680
The learning landscape of the higher education environment is changing, with an increased focus over the past decade on how educators might begin to cultivate reflective skills in health professions students. In addition, changing professional requirements demand that health professionals are adequately prepared to practise in today’s complex healthcare systems, including responding to changing demographics of population ageing. In this educational case study, we will share how we (a group of education, medical and nursing academics) developed ‘Depth of Field: Exploring Ageing’ a digital, consumer-driven, interprofessional reflective learning resource that uses photographs, narrative and small-group work to strengthen reflective capacity in current and/or future health professionals. 相似文献
76.
77.
The McCollough effect is an orientation-specific color aftereffect induced by adapting to colored gratings. We examined how the McCollough effect depends on the relationships between color and luminance within the inducing and test gratings and compared the aftereffects to the color changes predicted from selective adaptation to different color—luminance combinations. Our results suggest that the important contingency underlying the McCollough effect is between orientation and color—luminance direction and are consistent with sensitivity changes within mechanisms tuned to specific color—luminance directions. Aftereffects are similar in magnitude for adapting color pairs that differ only in S cone excitation or L and M cone excitation, and they have a similar dependence on spatial frequency. In particular, orientation-specific aftereffects are induced for S cone colors even when the grating frequencies are above the S cone resolution limit. Thus, the McCollough effect persists even when different cone classes encode the orientation and color of the gratings. 相似文献
78.
Jane Timmons-Mitchell Christie Brown S. Charles Schulz Susan E. Webster Lee A. Underwood William E. Semple 《Behavioral sciences & the law》1997,15(2):195-202
The present study was undertaken to survey the prevalence of mental disorder in juvenile justice facilities and to compare the mental health needs for females and males. Girls displayed significantly more mental health needs than boys. The estimated prevalence of mental disorder for boys was 27%, compared with 84% for girls. The difference is highly significant and is discussed in terms of service system issues in juvenile justice that affect males and females differently. ©1997 John Wiley & Sons, Ltd. 相似文献
79.
Eva M. Doherty Rosemary Walsh Leanne Andrews Susan McPherson 《Journal of clinical psychology in medical settings》2017,24(3-4):365-375
The assessment of emotional factors, in addition to other psychosocial factors, has been recommended as a means of identifying individuals with chronic pain who may not respond to certain pain treatments. Systematic reviews of the evidence regarding the prediction of responsiveness to a treatment called the spinal cord stimulator (SCS) have yielded inconclusive results. Emotional intelligence is a term which refers to the ability to identify and manage emotions in oneself and others and has been shown to be inversely associated with emotional distress and acute pain. This study aims to investigate the relationship between emotional intelligence, chronic pain, and the more established psychosocial factors usually used for SCS evaluations by clinical psychologists in medical settings. A sample of 112 patients with chronic pain on an acute hospital waiting list for SCS procedures in a pain medicine service were recruited. Psychological measures were completed including: a novel measure of emotional intelligence; usual measures of emotional distress and catastrophizing; and a numerical rating scale designed to assess pain intensity, pain-related distress, and interference. As predicted, findings revealed significant associations between most of the measures analyzed and current pain intensity. When entered into a simultaneous regression analysis, emotional intelligence scores remained the only significant predictor of current pain intensity. There are potential clinical, ethical, and organizational implications of emotional intelligence processes partially predicting pain in patients on a waiting list for a medical procedure. These results may offer new insight, understanding, and evaluation targets for clinical psychologists in the field of pain management. 相似文献
80.
When leaders are not who they appear: The effects of leader disclosure of a concealable stigma on follower reactions 下载免费PDF全文
Two studies examined follower reactions to disclosure of concealable stigma (i.e., transgender identity) by a leader. Using 109 employed participants, Study 1 showed followers rated leaders disclosing a stigma less likable and effective. This effect was both direct and indirect through relational identification with the leader. Using 206 employed participants, Study 2 found when a leader's stigma was involuntarily found out and disclosed later they received lower ratings of likability and effectiveness compared to leaders who voluntarily came out and disclosed earlier. Method (found out vs. came out) and timing of disclosure (later vs. earlier) had direct relationships with ratings of likability and effectiveness and method of disclosure had an indirect relationship with the outcomes via relational identification. 相似文献