Diving is a recreational activity of growing significance in many countries.In the recreational SCUBA diving industry,a liveaboard service offers tourists to stay on board for several nights and that allows time to tr...Diving is a recreational activity of growing significance in many countries.In the recreational SCUBA diving industry,a liveaboard service offers tourists to stay on board for several nights and that allows time to travel to more distant dive sites.SCUBA diving belongs to an adventure tourism,while cruise is much more leisure tourism activity.However,they share a similar travel mode,so it is very interesting to find the reason behind.Do cruise tourists be the potential diving tourists?The paper adopted the cruising motivation scale for diving tourists to develop a scale for SCUBA divers’motivations of liveaboard.Convenience sampling was used to select participants for the study.After exploratory factor analysis(EFA),the results showed that there were six dimension of SCUBA divers’liveaboard motivation,and the added dimension of divers’preference was valid.Finally,a measurement scale of SCUBA divers’liveaboard motivation was proposed in this study,and the discussion and implication were also presented in the paper.展开更多
Panel count data occur in many clinical and observational studies and in some situations the observation process is informative. In this article, we propose a new joint model for the analysis of panel count data with ...Panel count data occur in many clinical and observational studies and in some situations the observation process is informative. In this article, we propose a new joint model for the analysis of panel count data with time-dependent covariates and possibly in the presence of informative observation process via two latent variables. For the inference on the proposed model, a class of estimating equations is developed and the resulting estimators are shown to be consistent and asymptotically normal. In addition, a lack-of-fit test is provided for assessing the adequacy of the model. The finite-sample behavior of the proposed methods is examined through Monte Carlo simulation studies which suggest that the proposed approach works well for practical situations. Also an illustrative example is provided.展开更多
文摘Diving is a recreational activity of growing significance in many countries.In the recreational SCUBA diving industry,a liveaboard service offers tourists to stay on board for several nights and that allows time to travel to more distant dive sites.SCUBA diving belongs to an adventure tourism,while cruise is much more leisure tourism activity.However,they share a similar travel mode,so it is very interesting to find the reason behind.Do cruise tourists be the potential diving tourists?The paper adopted the cruising motivation scale for diving tourists to develop a scale for SCUBA divers’motivations of liveaboard.Convenience sampling was used to select participants for the study.After exploratory factor analysis(EFA),the results showed that there were six dimension of SCUBA divers’liveaboard motivation,and the added dimension of divers’preference was valid.Finally,a measurement scale of SCUBA divers’liveaboard motivation was proposed in this study,and the discussion and implication were also presented in the paper.
基金partially supported by National Natural Science Foundation of China(11671267)Scientific Research Level Improvement Quota Project of Capital University of Economics and Business and Scientific Research Foundation for Young Teachers of Capital University of Economics and Business(00591654490336)+6 种基金partially supported by the National Natural Science Foundation of China(Nos.11301212,11401146)partially supported by the National Natural Science Foundation of China Grants(No.11231010,11171330 and 11021161)Key Laboratory of RCSDS,CAS(No.2008DP173182)partly supported by National Natural Science Foundation of China(11271155)Specialized Research Fund for the Doctoral Program of Higher Education(20110061110003)Scientific Research Fund of Jilin University(201100011)Jilin Province Natural Science Foundation(20101596)
文摘Panel count data occur in many clinical and observational studies and in some situations the observation process is informative. In this article, we propose a new joint model for the analysis of panel count data with time-dependent covariates and possibly in the presence of informative observation process via two latent variables. For the inference on the proposed model, a class of estimating equations is developed and the resulting estimators are shown to be consistent and asymptotically normal. In addition, a lack-of-fit test is provided for assessing the adequacy of the model. The finite-sample behavior of the proposed methods is examined through Monte Carlo simulation studies which suggest that the proposed approach works well for practical situations. Also an illustrative example is provided.
