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41.
Optimality of experimental designs for spatially correlated observations is investigated.come two dimensional correlation structures are discussed and an attempt has been made to find optimal or nearly optimal design for each sitution.The solution lend to designs similar to that used for repeated measurements.The relative efficiency of the proposed designs in comparison to randomized latin square designs is tabulated for some cases. 相似文献
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In this paper, we propose some alternative estimatiors to that given by C. G. Khatri and C. R. Rao (1985), for estimating Signal to Noise ratio. Using Pitman Nearness, Condition for prefering one estimator over the other is estabilished. It is shown numerically that estimators corresponding to Entropy loss function are better more oftern than those corresponding to Squared Error loss. 相似文献
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Jeff Young Frances Saunders Gill Prentice Donna Macri-Riseley Rhonda Fitch Carmel Pati-Tasca 《Australian and New Zealand Journal of Family Therapy》1997,18(1):27-37
The experience of familiestrainee and supervisory therapists involved in reflecting team work are explored through the metaphor of ‘journey’ and by asking a small number of our colleagues and clients about their experiences. Ideas gained from this approach are tentatively used to raise some questions about the reflecting team specifically and the current direction of family therapy. More rigorous research into this area is invited. 相似文献
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The short‐ and long‐term consequences of childhood sexual abuse have been extensively reported. However, for many years there has been an absence of psychological conceptual frameworks for understanding and treating abuse trauma symptoms. This paper reviews a number of outcome studies for the treatment of child sexual abuse where a post‐traumatic stress disorder (PTSD) conceptualization was used to plan treatment interventions. The paper concludes that, contrary to some concerns expressed by clinicians, sexually abused children and their non‐abusing carers can signi?cantly bene?t from cognitive behavioural interventions which use reliving and confrontation of the abusive experience. Notwithstanding this, there is a need for further controlled outcome research of cognitive behavioural interventions using reliving techniques to explore how and why these interventions help in reducing abuse‐related PTSD symptoms. Copyright © 2004 John Wiley & Sons, Ltd. 相似文献
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Using a theoretical framework not previously tested in environmentalresearch, this study investigates the indirect relationshipbetween ecological concern and voting behavior. Results indicatethat the effects of ecological concern are mediated by attitudinal,normative, and behavioral intention variables. The results alsoprovide a partial test of the validity of Ajzen and Fishbein'sTheory of Reasoned Action. Key environmental, public policy,and communications implications are discussed. 相似文献
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In an earlier paper the authors (1997) extended the results of Hayter (1990) to the two parameter exponential probability model. This paper addressee the extention to the scale parameter case under location-scale probability model. Consider k (k≧3) treatments or competing firms such that an observation from with treatment or firm follows a distribution with cumulative distribution function (cdf) Fi(x)=F[(x-μi)/Qi], where F(·) is any absolutely continuous cdf, i=1,…,k. We propose a test to test the null hypothesis H0:θ1=…=θk against the simple ordered alternative H1:θ1≦…≦θk, with at least one strict inequality, using the data Xi,j, i=1,…k; j=1,…,n1. Two methods to compute the critical points of the proposed test have been demonstrated by talking k two parameter exponential distributions. The test procedure also allows us to construct simultaneous one sided confidence intervals (SOCIs) for the ordered pairwise ratios θj/θi, 1≦i<j≦k. Statistical simulation revealed that: 9i) actual sizes of the critical points are almost conservative and (ii) power of the proposed test relative to some existing tests is higher. 相似文献