Choice experiment (CE) is a questionnaire based method that the accuracy of research questionnaire determines the validity of the research outcomes. Attribute selection has a prime importance in every CE studies. If respondents do not understand or do not have preference for a certain attribute, the attribute non-attendance problem might happen that biases overall results of the research. Qualitative approaches such as literature review, focus group discussion, and in depth discussion commonly applied in CE researches. However, especially in the developing (...) countries context where ethnical and cultural diversity is a challenge in conducting survey based questionnaires, qualitative methods are not sufficient in selecting attributes. Present study investigates the application of relative importance index (RII) in respondents¡¯ preference for attributes in a modal shift study in Klang Valley, Malaysia. The 5 point Likert scale questions were employed to enhance respondents¡¯ preferences for initial 24 selected attributes. The results of this study showed that from 24 pre-selected attributes, only 18 of them had RII>0.5 and could be included in the final CE design. The results of this study could help researchers to control for unobserved problems in selecting the attributes which could not be discovered through qualitative approaches. -/- . (shrink)

The fight against corruption has become increasingly sophisticated and such demands a well-integrated, multidisciplinary strategy. This has necessitated the establishment of anti-corruption institutions, agencies or commissions which invariably have one or more of three functions: investigation and enforcement; corruption prevention; and awareness and education. However in Ghana, despite the existence of anti-corruption institutions, the perception of corruption has steadily increased to overwhelming levels. Why the increase in corruption in the face of these anti-corruption institutions is the subject matter of this (...) study. This study brings to fore the systemic barriers, their frequency of occurrence and magnitude. This study aimed at identifying the challenges that affect the effectiveness of these anti-corruption institutions in Ghana. The study was purposely carried out within anti-corruption institutions in Ghana. A simple random probability sampling was employed in sampling nine (9) anti-corruption institutions in the Ashanti Region of Ghana and questionnaires administered to their administrative heads. Relative importance, frequency and severity equations were used to analyze and rank the challenges affecting the work of these institutions. Lack of political will and inadequate leadership and management with Relative importance Index RII of 0.9778 respectively were the two (2) most critical challenges affecting the effectiveness of anti-corruption institutions in Ghana. Lack of donor initiatives with RII of 0.6667 was considered as the least challenge. The most frequent challenge identified by the anti-corruption agencies was the lack of budget and fiscal autonomy, with an index of 0.8148. In the face of these challenges, the government of Ghana should improve upon its efforts at fighting corruption as it strengthens the various anti-corruption institutions financially and logistically. (shrink)