毕业论文企业执行力存在的问题及提升研究

P30

囚徒常见问题问答

后，我收到了成堆的读者邮件，都是关于书中我制定的锻炼方法不同侧面的问题。通常我需要针对同一个问题一遍一遍地重复回复不同的读者。而在绝大多数情况下，我手把手教出来的徒弟是不会问我这些问题的。那么事情就很明显了，书中的不少内容没给我的读者交待清楚。所

2019-01-10 2918 0

P13

电大如何做好建设项目工程造价控制毕业论文

1 西安广播电视大学开放教育工程造价专业 毕业论文 题目：如何做好建设项目工程造价控制专业层次：专科级别： 11 春学号：姓名：分校（工作站）：指导教师： 2013 年 2 月

2020-04-13 3908 0

P22

现货市场交易研究调查报告2018

2019年7月現貨市場交易研究調查 2018 （報告全文）目錄頁次引言 .............................

2020-03-14 3957 0

P2

医用耗材有效期管理的研究

Journal·Vol．34·No．5·May·2013 作者简介：马冠颖（1978—），女，工程师，主要从事医疗设备、耗材管理方面的研究工作。 0 引言随着医疗技术的发展，医疗行为对医用耗材的依赖性也逐步增强，医用耗材采购质量管理也成为医院管理工作中的

2019-04-23 2292 0

P7

基于客户感知价值的客户细分研究

，讲师，博士研究生，主要研究方向为管理信息系统、数据挖掘、客户关系管理．ｄｏｉ：１０．３９６９／ｊ．ｉｓｓｎ．１００７-７３７５．２０１５．０４．００６基于客户感知价值的客户细分研究宋　华，

2019-06-23 2199 0

P35

养老服务行业深度研究报告

................................ - 5 - 1.3 空巢老人养老问题愈加严重 ............................................

2018-10-09 8052 0

P52

2013IS实证研究方法的讨论 DISCOVERING UNOBSERVED HETEROGENEITY

Assuming that data in empirical studies are homogeneous andrepresent a single population is often unrealistic in the socialand behavioral sciences, such as information systems, management,and marketing (Rust and Verhoef 2005; Wedel andKamakura 2000). There may be significant heterogeneity inthe data across unobserved groups, and it can bias parameterestimates, lead to Type I and Type II errors, and result ininvalid conclusions (Jedidi et al. 1997). Consider the followingtechnology acceptance model (TAM) example: Aresearcher is interested in individuals’ intention to use an ITsystem or service (Davis et al. 1989; Venkatesh 2000;Venkatesh and Davis 2000; Venkatesh et al. 2003). Informedby existing theory, the researcher proposes a model in whichperceived usefulness (PU) and perceived ease of use (PEOU)of the IT system explain intention to use the system (IU)(Figure 1). The empirical results reveal that PU and PEOUare equally important in explaining IU. However, the theoryand model overlook the two underlying groups: experiencedIT users (Figure 1a, segment 1) and inexperienced IT users(Figure 1a, segment 2). Experienced users show a strongpositive relationship between PU and IU and a weak, or nonsignificant,relationship between PEOU and IU. In contrast,inexperienced users show a strong positive relationshipbetween PEOU and IU and a weak, or nonsignificant, relationshipbetween PU and IU (Figure 1a). In this scenario,drawing inferences based on results from the overall samplewould lead to Type I errors as we would be overgeneralizingthe significant findings from the overall sample to theunderlying user groups, one with a nonsignificant estimate forPEOUIU and the other with a nonsignificant estimate forPUIU. If the model is not refined to accommodate thisunobserved heterogeneity, a system that is unsuitable foreither user group (i.e., one with average usefulness andaverage ease of use) may be provided to all users.

2018-10-13 2140 0