Sürdürülebilir Kalkınma Amaçları
Yayınlar
- MakaleYayıncıda açık erişim2025Answer-based and reference-based BERT models for automatic scoring of Turkish short answers: The decisive role of task complexity
Kara, Abdulkadir; Kara, Zeynep Avinc; Yildirim, Serkan
In measurement and evaluation processes, natural language responses are often avoided due to time, workload, and reliability concerns. However, the increasing popularity of automatic short-answer grading studies for natural language responses means such answers can now be measured more quickly and reliably. This study aims to build models for predicting automatic short answer scores using the pre-trained BERT deep learning language model and to reveal their effectiveness. For this purpose, two different score prediction models were created using an answerbased approach that aligns student answers with expert judgements and a referencebased approach that matches student answers with reference answers. The dataset includes answers from 246 Physics department students responding to 4 physicsrelated questions. The performance of these models was evaluated on four physics questions representing varying levels of cognitive complexity, using Cohen's Kappa for statistical comparison of agreement with expert scores. Our findings reveal a clear interaction between model architecture and task complexity. The answer-based model was unequivocally superior for the most complex, multi-class task, effectively capturing diverse, nuanced responses. Conversely, the reference-based model demonstrated a statistically significant advantage for a well-defined, mediumcomplexity binary task. This study concludes that the optimal model for ASAG in Turkish is contingent on the cognitive demands of the assessment task, suggesting that a onesize-fits-all solution may not be the most effective approach. This provides a critical framework for practitioners, demonstrating not only that effective models are feasible for complex languages, but that their selection must be guided by task complexity.
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İncele - MakaleAçık Erişim2023Scopus SJRQ1Reproductive Effects of S. boulardii on Sub-Chronic Acetamiprid and Imidacloprid Toxicity in Male Rats
Sevim, Cigdem; Akpinar, Erol; Aksu, Emrah Hicazi; Ömür, Ali Dogan; Yildirim, Serkan; Kara, Mehtap; Bolat, Ismail; Tsatsakis, Aristides; Mesnage, Robin; Golokhvast, Kirill S. S.
The potential health-promoting effects of probiotics against intoxication by pesticides is a topic of increasing commercial interest with limited scientific evidence. In this study, we aimed to investigate the positive effects of probiotic Saccharomyces boulardii on the male reproductive system under low dose neonicotinoid pesticide exposure conditions. We observed that acetamiprid and imidacloprid caused a degeneration and necrosis of the spermatocytes in the tubular wall, a severe edema of the intertubular region and a hyperemia. This was concomittant to increased levels of 8-hydroxy-2 '-deoxyguanosine reflecting oxidative stress, and an increase in caspase 3 expression, reflecting apoptosis. According to our results, Saccharomyces boulardii supplementation mitigates these toxic effects. Further in vivo and clinical studies are needed to clarify the molecular mechanisms of protection. Altogether, our study reinforces the burden of evidence from emerging studies linking the composition of the gut microbiome to the function of the reproductive system.
AtıfScopus20WoS19OpenAlex24
İncele - MakaleYalnız künye2021Factors influencing e-books' continuance intention in the mobile environment
Bölen, Mehmet Cem; Yildirim, Serkan; Yildirim, Gurkan
The identification of factors that affect people's continuous use of e-books on their mobile devices is critical for e-book publishers, e-reader manufacturers and academic researchers. This study proposes a research model that extends the expectation-confirmation model by incorporating perceived enjoyment and facilitating conditions to get a deeper understanding of continuance intention to use e-books in the mobile environment. The structural equation model (SEM) was used to analyse data which were collected from 1,663 e-book readers by an online survey. The results indicate that satisfaction, perceived enjoyment, perceived usefulness and facilitating conditions influence continuance intention significantly. Furthermore, users' confirmation of expectations has a positive effect on perceived usefulness, perceived enjoyment and satisfaction. Surprisingly, perceived usefulness does not have a significant effect on satisfaction. Based on these findings, the theoretical and practical implications, limitations, and recommendations for future research are also discussed.
AtıfWoS2İncele - MakaleAçık Erişim2019The effect of VR and traditional videos on learner retention and decision making
Yildirim, Gurkan; Yildirim, Serkan; Dolgunsoz, Emrah
Virtual reality (VR) as computer-mediated 3-D environments including real-life situations presented via different tools in which users can interact effectively with visuals. This study is significant as it primarily aimed to investigate effects of VR on retention by comparing it with traditional 2-D videos. The main aim of this study is to compare the effect of VR and 2-D videos on learner retention and decision making. About 18 students from the Department of English language teaching in an age range of 18-20 (nine males and nine females) voluntarily participated in this study and took course credits. As all participants were tested under the same two conditions in different time periods; repeated measures were chosen for statistical analysis. It can be inferred that both technologies have similar effects on short-term retention and VR does not provide any extra retention performance. However, VR was found to have a significant effect on long-term retention.
AtıfScopus18İncele - MakaleYalnız künye2018Uygulayıcıların ters yüz edilmiş sınıf uygulamalarına yönelik deneyimleri
Çelık, Embıya; Yıldırım, Gürkan; Yildirim, Serkan
Bu çalışmada; uygulayıcı olarak öğretmen adaylarının ters yüz edilmiş sınıf uygulamalarına yönelik genel görüşlerinin ortaya çıkarılması ve geleneksel öğrenme yaklaşımlarından farklı olarak gerçekleştirdikleri aktivitelerin belirlenmesi amaçlanmıştır. Bunun yanı sıra FC uygulamalarının daha etkili tasarlanabilmesi için öğretmen adaylarının önerilerinin alınması hedeflenmektedir. Durum çalışması desenine göre şekillendirilen bu araştırmada odak grup görüşmesi veri toplama yöntemi tercih edilmiştir. Çalışmaya gönüllü olarak katılan sekiz öğretmen adayı amaca uygun örneklem seçim yöntemiyle çalışma grubuna dâhil edilmiştir. Verilerin toplanmasında araştırmacılar tarafından geliştirilen yarı yapılandırılmış görüşme formu kullanılmıştır. Verilerin analizinde içerik analizi yöntemi kullanılmıştır. Çalışmada ters yüz edilmiş sınıf etkinliklerinin geleneksel öğrenme sürecine göre uygulayıcıların daha fazla zamanını aldığı ve daha fazla çaba gerektirdiği görülmüştür. Özellikle uygulayıcıların dersin hazırlık aşamasında ve sınıf öncesi süreçte daha aktif rol aldıkları belirtilmiştir. Ters yüz edilmiş sınıf uygulamalarında hazırlanan ders içeriklerinin daha açık ve anlaşılır olması gerektiği vurgulanmıştır. Ayrıca ders öncesi gerçekleştirilen aktiviteler sayesinde öğrencilerin yüz yüze derslere daha aktif katılımının sağlandığı ve hazırbulunuşluk düzeylerinin arttığı uygulayıcıların belirttiği olumlu etkiler arasındadır. Bu uygulamaların bireysel farklılıkları da azaltarak öğrenmeye olumlu etki sağladığı düşünülmektedir.
AtıfTR Dizin7İncele - MakaleYalnız künye2018A New Insight – 3D Printers and Their Instructional Use: A Content Analysis
Çelık, Embıya; Yıldırım, Gürkan; Yildirim, Serkan
In the current research, it is aimed to determine the current situation of the studies about the 3D printers in the literature and the status of the 3D printers in terms of educational utilization. The content analysis method was used in the study. According to the findings, it can be said that there is a progress in the positive direction from 2003 to 2017, in the studies carried out on the 3D printers. When studies on 3D printers are examined, it is noteworthy that many studies have been carried out especially in the field of health, medicine and engineering. When examining the work carried out on the 3D printers' utilization in the field of education in the WoS and ERIC databases, it has been seen that many studies are particularly oriented towards the development of material, environment or a product. In addition, very little of the studies have examined the instructional effects of 3D printers.
AtıfTR Dizin8İncele - MakaleYalnız künye2018Sanal gerçeklik teknolojisinin yabancı dil olarak İngilizce öğretiminde yazma becerisine etkisi
Dolgunsöz, Emrah; Yıldırım, Gürkan; Yildirim, Serkan
Günümüzde teknoloji alanında yaşanan gelişmeler göz önüne alındığında eğitim ortamlarında çok sık olarak farklı teknolojiler kullanılmakta ve öğretimsel etkileri incelenmektedir. Sanal gerçeklik uygulamaları da bu teknolojilerin en son örneklerinden biri olarak karşımıza çıkmaktadır. Sanal Gerçeklik kişinin sanal ortamla birebir ilişki içinde bulunduğu ve etkileşime geçebildiği modern bir teknolojidir. Çok aşamalı açımlayıcı karma desene sahip bu çalışmada İngilizceyi yabancı dil olarak öğrenen 24 öğrenci hem sanal gerçeklik hem geleneksel 2 boyutlu video izlemiş ve yazma performanslarına bakılmıştır. Ayrıca tüm öğrencilerle yarı yapılandırılmış röportaj yapılmıştır. Çalışma sonucunda; VR teknolojisinin kullanıcılar tarafından kullanılmasa bile medya, arkadaş ve sosyal ağlar gibi ortamlarla bu teknolojiden haberdar oldukları görülmüştür. Nicel sonuçlar öğrencilerin geleneksel video da daha başarılı olduğunu göstermiş olsa da, sanal gerçeklik tecrübesi uzun süreli hafızaya daha olumlu etki etmiştir. Sanal gerçeklik uygulamalarının sunmuş oldukları gerçeklik ve ortamda bulunma hislerinden dolayı kullanıcıları tarafından çok fazla beğendikleri görülmüştür. Ancak sunulan içeriğin görüntü kalitesi gibi teknik özellikleri beğeni durumunu olumsuz yönde etkileyebilmektedir.
AtıfTR Dizin3İncele - BildiriAçık Erişim2017Learners' views about cloud computing-based group activities
Yildirim, Serkan; Bölen, Mehmet Cem; Yildirim, Gurkan; Masal, E; Onder, I; Besoluk, S; Caliskan, H; Demirhan, E
Thanks to its use independently of time and place during the process of software development and by making it easier to access to information with mobile technologies, cloud based environments attracted the attention of education world and this technology started to be used in various activities. In this study, for programming education, the effects of extracurricular group assignments in cloud based environments on learners were evaluated in terms of group work satisfaction, ease of use and user satisfaction. Within the scope of computer programming education lasting eight weeks, a total of 100 students participated in the study including 34 men and 66 women. Participants were divided into groups of at least three people considering the advantages of cooperative learning in programming education. In this study carried out in both conventional and cloud based environments, between groups factorial design was used as research design. The data collected by questionnaires of opinions of group work were examined with quantitative analysis method. According to the study results extracurricular learning activities as group activity created satisfaction. However, perceptions of easy use of the environment and user satisfaction were partly positive. Despite the similar understandings; male participants were easier to perceive use of cloud computing based environments. Some variables such as class level, satisfaction, computer and internet usage time do not have any effect on satisfaction and perceptions of ease of use. Evening class students stated that they found it easy to use cloud based learning environments and became more satisfied with using these environments besides being happier with group work than daytime students.
AtıfOpenAlex3İncele - BildiriAçık Erişim2016A study on the development of an infographic designer questionnaire and designer opinions
Yildirim, Serkan; Yildirim, Gurkan; Çelik, Embiya; Kaban, Abdullatif; Gunduz, HB; Masal, E; Caliskan, H
Technological developments and changes in how learning is understood have not only changed learning environments, but also how educational materials are developed. Infographics, one of the materials that are becoming increasingly more popular in learning environments, have nowadays become quite commonplace. Demonstrating the understanding of those who design such instructional materials is important with respect to the organisation of learning processes. In this study, we devised a questionnaire that aims to demonstrate the understanding infographic designers have of infographic design. A total of 94 students from the Department of Computer and Instructional Technologies Education of the Kazim Karabekir Faculty of Education took part in this study conducted during the fall semester of the 2013-2014 academic year. The participants were given a questionnaire consisting of 41 items that enquired about the readers' views regarding infographic design. The collected data were assessed using Principal Component Analysis. Based on the analysis results, a questionnaire form consisting of 27 items and 8 factors (Understanding of Design, Design Process, Copyrights, Introduction, Readability, Sharing, References, Development) was developed.
AtıfOpenAlex3İncele - BildiriAçık Erişim2016A study on the development of an infographic reader questionnaire and reader opinions
Yildirim, Serkan; Çelik, Embiya; Yildirim, Gurkan; Kaban, Abdullatif; Gunduz, HB; Masal, E; Caliskan, H
Educational materials are commonly used to assist with communication during learning. One of the ways to determine the use of educational materials and their contribution to the learning process is to ask students for their opinions. Student opinions provide useful information regarding various objectives such as making both the learning process and resources more effective, bringing about the necessary improvements and organising the teaching process. In this study, we developed a questionnaire for determining the opinions of information graphics (infographics) readers on information graphics prepared for teaching purposes. This study was conducted in the fall semester of the 2013-2014 academic year with the participation of 59 students from the Department of Computer and Instructional Technologies Education of the Kazim Karabekir Faculty of Education. The students were provided with a questionnaire consisting of 29 items that inquired their opinions on infographics. The collected data were assessed using Principal Component Analysis. Based on the analysis results, a second questionnaire consisting of 23 items and six factors (Learnability, Selection Preferences, Sharing, Basic Presentation Structure, Memorability, and Role in the Learning Process) was developed. According to the study results, the students considered infographics as highly instructive, and described that they help ensure a more lasting learning experience.
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