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101.
An analysis of 399 banks self typed as prospectors, analyzers or defenders indicated that the self typing paragraph approach was a useful measurement instrument which has reasonable convergent validity, supporting Shortell and Zajac (1990), and providing further evidence of the value of the self typing paragraph approach in strategy research. 相似文献
102.
利用主成分分析方法支持向量机在小样本空间中良好的分类能力,对60家上市企业分别进行了两类和四类的财务状况评价,获得了比较满意的结果。实验表明支持向量机完全可以提取优秀企业财务数据的内在知识,用来评判企业的财务状况。 相似文献
103.
This study aims at building a theory of backpacker personal development (BPD) by cross-culturally validating the scale developed by Chen, Bao, and Huang (2014). While the original scale was developed by studying Chinese backpackers, this study focuses on Western backpackers to further validate the scale and advance the studies of backpacker personal development. The study involves two samples in two stages (Study 1, n = 382; Study 2, n = 120) to verify the psychometric properties of the backpacker personal development scale (BPDS). Results show that the five dimensions of the BPDS (i.e., capability, emotion, skill, worldview, and self-consciousness), also apply to Western backpackers; the BPDS demonstrates cross-cultural validity and reliability in measuring backpacker personal development. The current research suggests that Western backpackers see backpacking as a more ‘individualistic’ way of personal development. 相似文献
104.
Jodie M. Osborne Rania Shibl Cate M. Cameron Denise Kendrick Ronan A. Lyons Anneliese B. Spinks 《International journal of injury control and safety promotion》2016,23(3):229-239
The aim of the study was to describe the validity of parent's self-reported responses to questions on home safety practices for children of 2–4 years. A cross-sectional validation study compared parent's self-administered responses to items in the Home Injury Prevention Survey with home observations undertaken by trained researchers. The relationship between the questionnaire and observation results was assessed using percentage agreement, sensitivity, specificity, positive predictive value, negative predictive value and intraclass correlation coefficients. Percentage agreements ranged from 44% to 100% with 40 of the total 45 items scoring higher than 70%. Sensitivities ranged from 0% to 100%, with 27 items scoring at least 70%. Specificities also ranged from 0% to 100%, with 33 items scoring at least 70%. As such, the study identified a series of self-administered home safety questions that have sensitivities, specificities and predictive values sufficiently high to allow the information to be useful in research and injury prevention practice. 相似文献
105.
A recursive dynamic disaggregated computable general equilibrium model of the Spanish economy is used to compare the model predictions of endogenous variables with their observed values over the period 1991–1997. It includes 12 producers, 12 households, government and 2 external sectors. There are four types of labour and real wages that depend on unemployment rates. Private investment is determined by private savings and public and external surpluses. Domestic products and imports are imperfect substitutes. All exogenous variables and tax parameters are updated every year with the best available information. The model provides rather accurate predictions in 1991, a normal year, but it underestimates the intensity of the 1992–1993 recession. It also predicts dramatic reversals of trade balances in response to devaluations. These results suggest both that investment savings-driven models provide useful insights in the medium term but underestimate the consequences of downturns, and that Armington's elascitities typically assumed may be too large. 相似文献
106.
药品质量标准分析方法的验证,就是对药品分析实验所采用的分析方法是否完全达到预期目的,或证明由分析方法误差而导致试验结果判断错误的概率是否在允许范围之内,而进行的科学证明。文章以单硝酸异山梨酯注射液为例,对质量标准分析方法进行验证。 相似文献
107.
《Journal of Travel & Tourism Marketing》2013,30(4):1-2
No abstract available for this article. 相似文献
108.
This article reports an application of a Group Process Support System to facilitate the validation of a client assessment model used in social services. Various models have been proposed to aid client assessment, but the key to their successful application in practice is the degree of consistency of judgement which results from their use. The article describes an investigation into this aspect of consistency of model application with three groups of care managers within a county council, and in particular discusses a group session process which addresses issues of model validity. This process facilitated the identification of a number of aspects of the model which needed attention in order to achieve a high degree of consistency in application. 相似文献
109.
110.
This paper proposes a simple asset pricing model with three groups of traders: chartists who believe in the persistence of bull and bear markets, fundamentalists who bet on a reduction of the observed mispricing, and investors who follow a buy-and-hold strategy. The innovative feature of the model concerns the frequency of trading: rather than remaining constant over time, each agent in a group is only assumed to become active with a certain probability over a given market period. Depending on the trading strategy, part of this elementary kind of intrinsic noise is additive and another part is multiplicative. Using bootstrap and Monte Carlo methods, it is demonstrated that this combination can contribute to explaining the stylized facts of the daily returns on financial markets, such as volatility clustering, fat tails, and the autocorrelation patterns. 相似文献