Estimating the effect of a randomized treatment and the effect that is transmitted through a mediator is often complicated by treatment noncompliance. In literature, an instrumental variable -based method has been developed to study causal mediation effects in the presence of treatment noncompliance. Existing studies based on the IV-based method focus on identifying the mediated portion of the intention-to-treat effect, which relies on several identification assumptions. However, little attention has been given to assessing the sensitivity of the identification assumptions or (...) mitigating the impact of violating these assumptions. This study proposes a two-stage joint modeling method for conducting causal mediation analysis in the presence of treatment noncompliance, in which modeling assumptions can be employed to decrease the sensitivity to violation of some identification assumptions. The use of a joint modeling method is also conducive to conducting sensitivity analyses to the violation of identification assumptions. We demonstrate our approach using the Jobs II data, in which the effect of job training on job seekers’ mental health is examined. (shrink)

ABSTRACTThis study was conducted to examine the effects of practices based on the Argumentation-Based Enquiry approach on the critical thinking of science teacher candidates in a course named...

Incorporation of the behavioral issues of the decision maker (DM) is among the aspects that each Multicriteria Decision Making (MCDM) method implicitly or explicitly takes into account. As postulated by regret theory, the feelings of regret and rejoice are among the behavioral issues associated with the entire decision making process. Within the context of MCDM, the DM may feel regret, when the chosen alternative is compared with another one having at least one better criterion value. PROMETHEE II is a widely (...) known MCDM method that makes no explicit incorporation of regret attitude of the DM. In this paper, we elaborate on the applicability of regret theory to MCDM context. In particular, we investigate the findings of regret theory and explore the parallel between regret theory and PROMETHEE II method. Relying on the concepts of regret theory, we demonstrate how a decision that is made using a PROMETHEE II based outranking method conforms to the regret attitude of the DM. (shrink)

Increasingly complex working environments of school principals inevitably led them to face moral dilemmas in daily life. The aim of this research is to reveal which kinds of moral dilemmas principals fall into mostly, how principals follow the road to making decisions in the moral dilemmas, and if the nature of management affects the decision-making process of their moral dilemmas or not. For data collection process snowball sampling was used. Semi-structured interviews and vignettes which were designed by researchers were used (...) for data collection. According to results, principals in Turkey have experienced moral dilemmas based on self-interests instead of ethic of critique which is experienced by Canadian principals. Moreover, taking into consideration the decision-making process, although principals in Canada follow the same procedure as the Turkish principals, they have two extra steps: “considering the students’ benefit” and “considering teachers’ and parents’ needs.” Lastly, it is seen that the Turkish and Canadian principals’ natures which affect the moral dilemma decision-making process are totally different. The possible reasons for these differences and suggestions were discussed within this context. (shrink)

Background: Promoting patients’ rights is essential for defining the standards of clinical services within a country. Given their responsibilities, nurses can be the primary target for research to investigate the issue of patients’ rights within a healthcare system. As such, assessing the knowledge of nurses about patients’ rights is an essential step toward improving the quality of healthcare in limited resource settings like Sudan. Objectives: We aimed to assess the level of knowledge about patients’ rights among the nursing staff at (...) Friendship Teaching Hospital in Sudan. Methods: This hospital-based cross-sectional study was carried out at the Friendship Teaching Hospital in Sudan. We surveyed the totality of nurses at the hospital using an amended survey. The data were analyzed in SPSS software using descriptive and inferential statistics. Ethical consideration: The study was approved by the Research Unit of Khartoum Ministry of Health and the Hospital administration. All respondents gave verbal consent prior to participating in the study. Results: Only 48.4% of the participants knew about the existence of the Sudanese Charter of patients’ rights. Nonetheless, our analysis found that 65.8% of nurses had acceptable level of knowledge of patients’ rights, and none of the participant scored less than 50% of the total knowledge score. Finally, we found no statistical association between the knowledge score and demographic data, educational level, whether the participant knows about the existence of the Charter or not and a number of other factors. Conclusion: Nurses’ lack of knowledge about the existence of the Sudanese Charter of patients’ rights adopted in 2009 rights confirms the need for further efforts by Ministry of Health to promote the document. Furthermore, further research is needed to investigate the disconnect between nurses’ lack of knowledge about the existence of the charter and their awareness of the rights within the charter as well as the actual implementation of rights. (shrink)

This report summarises a study examining preservice elementary teachers? geometry content knowledge with a focus on parallelogram. It was a descriptive study examining 45 preservice teachers? reasoning in the process of determining which quadrilateral can be classified as a parallelogram. Findings have revealed that these elementary teachers do not possess sound understanding of parallelogram and class inclusion between parallelogram and trapezoid at the expected level.