TR Dizin İndeksli Yayınlar Koleksiyonu / TR Dizin Indexed Publications Collection

Permanent URI for this collectionhttps://hdl.handle.net/20.500.14365/4

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Citation - WoS: 16
Citation - Scopus: 19
Comparative Analysis of Multicriteria Decision Making Methods for Postgraduate Student Selection
(Ani Yayincilik, 2010) Altunok, Taner; Özpeynirci, Özgür; Kazancoglu, Yigit; Yilmaz, Recai
Problem Statement: The educational recourses available for postgraduate education are limited compared with the resources for undergraduate education. An academic advisor is required for each graduate student. The academic staff allocates an important portion of his/her time for graduate studies of his/her students. Since the number of academic staff is limited, the number of graduate students should be limited, too. While a large number of students may attend an undergraduate course, this may not be possible for some graduate courses, which are designed especially for small student groups. Hence, the selection of postgraduate students is an important problem. The postgraduate student selection problem can be defined as selecting a subset of students from the applicants for a postgraduate program. Naturally, this problem is a multi-criteria decision-making problem since each applicant has several attributes and these attributes should be considered simultaneously during the selection process. Purpose of Study: The purpose of this study is to compare the performance of different multi criteria decision-making methods developed for ranking alternatives for the postgraduate student selection problem. The best method will also be used in the student selection process for the Defense Sciences Institute of Turkish Military Academy. Methods: This paper discusses three multi-criteria decision making methods developed for ranking alternatives, namely Analytic Hierarchy Process (AHP), Weighted Product (WP) and the Technique for Order Preference by Similarity to Ideal Solution (TOPSIS). A performance measure is defined and the performance values of the methods are compared using real data gathered from the graduates of Defense Sciences Institute of Turkish Military Academy for illustration purposes. Findings and Results: According to the findings, AHP is the best of the three competitors. The ranking obtained by AHP is quite similar to the ranking of students with respect to their cumulative grade point average (CGPA) after their graduation from the program. Conclusions and Recommendations: Considering graduate student selection problem as a multicriteria decision-making problem is very important and enables universities to enroll graduate students with important attributes and a variety of strengths. This paper compares the performance of different multicriteria decision-making methods on graduate student selection problem using a single performance measure. A further study can be making such a comparison with multiple performance measures.
Citation - WoS: 1
Citation - Scopus: 1
From Self-Esteem To Mental Health: Empathy as Mediator
(Ani Yayincilik, 2011) Simsek, Omer Faruk; Bozanoglu, Ihsan
Problem Statement: Although self-esteem has been considered an end-state of mental health or a defense mechanism, recent theoretical and empirical findings questions its status in the field of psychology. As a result of such a framework, research mainly concentrated on mean differences in self-esteem and the consequences of these differences for mental health. However, some theoretical considerations imply that self-esteem should be considered a dynamic human striving, which contributes to mental health through its effects on other variables related to the construction and maintainance of social relationships such as empathic tendency. Thus, it is a requisite to understand the mediatory factors connecting self-esteem and mental health. Purpose of the Study: The purpose of this study was to understand whether the relation between self-esteem and mental health is mediated by empathic tendency. In other words, a structural model with direct paths from self-esteem to empathic tendency and paths from empathic tendency to life-satisfaction, happiness, and psychopathology were specified. Method: A structural model was tested using structural equation modeling. Before the structural model, a measurement model was tested. A measurement model is structured using the item-parceling method. Different goodness of fit statistics were used to assess models such as the Goodness of Fit Index (GFI), Adjusted Goodness of Fit Index (AGFI), and Root Mean Square Error of Approximation (RMSEA). Findings and Results: The results showed that both the measurement model and structural model fitted the data reasonably. Mediation tests indicated that the relation between self-esteem and well-being (life satisfaction and happiness) is partially mediated by empathic tendency, while the relation between self-esteem and ill-being is fully mediated. Conclusions and Recommendations: The idea that self-esteem is good in itself and an end state that should be satisfied for mental health should be re-evaluated. Empathic tendency is one important mediatory variable in understanding the effect of self-esteem on mental health. Its effects on mental health through other social or individual dynamics should be evaluated in future research.
Citation - WoS: 6
Citation - Scopus: 7
Second Language Vocabulary Acquisition in Synchronous Computer-Mediated Communication
(Ani Yayincilik, 2009) Sahin, Mehmet
Problem Statement: Communication has become easier than ever with highspeed Internet connection and other mobile technologies; and, technology has proven itself as a valuable contribution to educational practices when used in a pedagogically sound manner. Only few studies provide empirical evidence supporting the connection between negotiation of meaning in synchronous communication environments and second language vocabulary acquisition. Purpose of the study: The study aims at providing further support for the Interaction Hypothesis by investigating whether negotiation of meaning in synchronous computer-mediated communication facilitates language learners' subsequent ability to recognize and produce new vocabulary and whether observed differences hold up over time. Method: In this quasi-experimental study, 11 intermediate college-level learners of French and Russian in a foreign language learning context and prospective language teachers as native speakers had six 30-minute synchronous online chat sessions completing communicative tasks. Using a mixed-methods approach, both quantitative and qualitative data were included in the analysis. Chatscripts were analyzed using an interactional analysis method. Negotiation episodes around the vocabulary items that were previously reported as unknown by language learners were identified in each chat session. Descriptive and inferential statistics were used to analyze learners' pretest, posttest, and delayed posttest scores. Findings and Results: Language learners and prospective teachers negotiated meaning while completing communicative tasks. Prospective language teachers took the role of a more competent partner in the tasks. The study provides evidence for the positive effect of synchronous computer-mediated communication on second language vocabulary acquisition. Language learners in both French and Russian groups were able to understand the meaning of the previously unknown vocabulary items and produce those vocabulary items after completing online tasks with prospective teachers. However, vocabulary gains of the language learners did not hold up over a two-week period. Conclusions and Recommendations: Overall, the online communication experience proved to be a positive component that can be integrated into language learning and teaching contexts. Empirical support for the Interaction Hypothesis was provided through the findings of this study. Integrated into language curriculum rather than being an add-on component, such online activities could be enhanced through embedding further revision of the newly learned vocabulary items into the design process. Mimics, gestures, and keystrokes could be captured through the use of usability lab technologies, which would enhance the data sources for the analysis. Further research could be conducted with the focus on various aspects of the target language such as grammar, pragmatics (politeness, apologies, etc.), and phonology/graphology.

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