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Öğe The Adaptation of Learning Strategies for Higher Education Scale for Turkish Context(Eskisehir Osmangazi Univ, Fac Education, 2019) Kecici, Sayime Erben; Aydin, MustafaIn this study, it is aimed to adapt the LIST scale that was prepared by Boerner et al. (2005) to define the learning strategies of university students, to Turkish. Validity and reliability analysis were made for Turkish form considering the original form. The study was conducted with 754 college students. Firstly, the linguistic equivalency of the scale was completed then the factor structure was analyzed. The factor structure of the scale was commented considering the exploratory factor analysis and parallel analysis results. Statistically irrelevant items were excluded from the scale. Factor analysis results show that the scale was 12 dimensional and consists of 67 items. According to the analyses, the internal consistency of 12 dimensional structure of the scale was adequate with the factors in the scale. Cronbach Alpha values of the factors ranged between .74 and .92. Furthermore, in order to ensure the reliability of the scale, comparisons of item averages of between sub and super groups were made. It was seen that the results of the comparisons of 27% sub and super groups were significant factor all the items. These results show that the 12 dimensional structure of the scale is valid and reliable to define the learning strategies of university students.Öğe Assessing Uses of Motivated Strategies by Middle School Students Based on Their Learning Styles(Fac Teacher Education, 2015) Yurt, Eyup; Aydin, Mustafa; Sahin, IsmailIn this study, middle school students' motivated strategies for learning were compared based on their learning styles. Four hundred fifty-one senior middle school students participated in this study. The sample comprised 52.3% female students and 47.7% male students. According to the results of the present study, the Concrete Experience and Reflective Observation learning preferences generally exhibit a negative correlation with the motivated strategies for learning whereas the Abstract Conceptualization and Active Experimentation learning styles mostly display a positive correlation with the motivated strategies for learning. Moreover, the students who have the Accommodating and Converging learning styles use motivated strategies for learning more frequently than the students who have the Diverging and Assimilating learning styles.Öğe Assessing Uses of Motivated Strategies by Middle School Students Based on Their Learning Styles(Fac Teacher Education, 2015) Yurt, Eyup; Aydin, Mustafa; Sahin, IsmailIn this study, middle school students' motivated strategies for learning were compared based on their learning styles. Four hundred fifty-one senior middle school students participated in this study. The sample comprised 52.3% female students and 47.7% male students. According to the results of the present study, the Concrete Experience and Reflective Observation learning preferences generally exhibit a negative correlation with the motivated strategies for learning whereas the Abstract Conceptualization and Active Experimentation learning styles mostly display a positive correlation with the motivated strategies for learning. Moreover, the students who have the Accommodating and Converging learning styles use motivated strategies for learning more frequently than the students who have the Diverging and Assimilating learning styles.Öğe Does the digital divide matter? Factors and conditions that promote ICT literacy(Elsevier, 2021) Aydin, MustafaIndividuals' computer skills have long been noteworthy for both education and the labor market. Although the support provided through curricula in schools develops these skills to a certain extent, digital divide still exists for individuals with different socio-demographic characteristics. The concept of digital divide, used to define individuals who do not have equal access to digital technologies, has started to be seen as a determining factor for digital competencies with its expanding scope. The current study aims to take a perspective to investigate the effect of socio-demographic variables, which may cause digital divide, on students' ICT literacy. With this study, it is sought to explain the effect of current inequalities regarding digital access on students' ICT skills. To this end, the socio-demographic characteristics of the students in the sample of Korea and Chile from the participating countries of the International Computer and Information Literacy Study (ICILS) were examined in the context of ICT literacy. The characteristics of the models created were compared for both countries. While parents' level of education variable stands out for the Chilean model, the internet connection variable is remarkable for the Korean model. It is anticipated that the findings of the research will contribute to understanding the dynamics of the digital divide and its possible consequences, and can be a source for preventive policy steps to be developed.Öğe Effect of the verbal mnemonics on students' achievements and their attitudes(Elsevier Science Bv, 2012) Aydin, Mustafa; Sunbul, Ali MuratIn this study the effects of the instruction of Science and Technology, which is based on the verbal mnemonics, on the learning products has been searched. In this study experimental method's 1 has been used. Study has been conducted with two fifth grade classes which are equal to each other with their scientific and cognitive entre behaviour. Totally 66 pupils have participated to this study. At the control group normal educational activities have been practised as foresighted. At the experimental group education and instruction have been continued with the materials which supported and based on the verbal memory. (C) 2012 Published by Elsevier Ltd.Öğe Impact response of nanoparticle reinforced 3D woven spacer/epoxy composites at cryogenic temperatures(Sage Publications Ltd, 2021) Yildirim, Ferhat; Tatar, Ahmet Caner; Eskizeybek, Volkan; Avci, Ahmet; Aydin, MustafaFiber-reinforced polymer composites serving in harsh conditions must maintain their performance during their entire service. The cryogenic impact is one of the most unpredictable loading types, leading to catastrophic failures of composite structures. This study aims to examine the low-velocity impact (LVI) performance of 3D woven spacer glass-epoxy composite experimentally under cryogenic temperatures. LVI tests were conducted under various temperatures ranging from room temperature (RT) to -196 degrees C. Experimental results reveal that the 3D composites gradually absorbed higher impact energies with decreasing temperature. Besides, the effect of multi-walled carbon nanotube and SiO2 nanofiller reinforcements of the matrix on the impact performance and the damage characteristics were further assessed. Nanofiller modification enhanced the impact resistance up to 30%, especially at RT. However, the nanofiller efficiency declined with decreasing temperature. The apparent damages were visually examined by scanning electron microscopy to address the damage formation. Significant outcomes have been achieved with the nanofiller modification regarding the new usage areas of 3D woven composites.Öğe Improved mechanical performance of three-dimensional woven glass/epoxy spacer composites with carbon nanotubes(Sage Publications Ltd, 2021) Yildirim, Ferhat; Aydin, Mustafa; Avci, AhmetThree-dimensional polymer composites offer various features and design options due to their hollow structure and lightweight. However, to exploit their advantages, it is a must to improve their structural features and mechanical performances including out-plane direction. Although introducing thermoplastic fillers between the plies or multilayered design addresses on this critical issue, the benefits offered by the nanoparticles with superior mechanical properties come a step forward as an another engineering solution. Based on this motivation, the goal of this study is to investigate the impact of multiwalled carbon nanotubes on the mechanical and thermomechanical performances of three-dimensional woven glass/epoxy spacer composites. Therefore, multiwalled carbon nanotubes at various content were introduced into epoxy matrix, and the multiwalled carbon nanotubes-epoxy mixture was infused to three-dimensional woven fabric with the vacuum-assisted resin transfer method. The obtained results indicated that the three-point bending strength and modulus were enhanced up to 25 and 80% for warp direction and enhanced up to 44 and 85% for weft direction with carbon nanotube addition, respectively. Tensile strength developed in the warp direction by 7%, while the strength value in the weft direction did not change. The tensile strain values for warp and weft directions enhanced up to 19 and 12% with carbon nanotube addition, respectively. In addition, thermomechanical analysis has revealed that the glass transition temperature and storage modulus were also improved. Particle dispersion detection with color measurement and scanning electron microscopy analyses revealed the effectiveness of the ultrasonic mixing on the dispersion of carbon nanotubes in the epoxy matrix. The consequences of carbon nanotube addition on microscale morphology were discussed based on the fracture morphologies to nanoscale and microscale toughening mechanisms in the existence of carbon nanotube reinforcement.Öğe THE META-ANALYSIS OF THE STUDIES ABOUT THE EFFECTS OF FLIPPED LEARNING ON STUDENTS' ACHIEVEMENT(Anadolu Univ, 2021) Aydin, Mustafa; Okmen, Burcu; Sahin, Seyma; Kilic, AbdurrahmanThe aim of this research is to analyze the effect of the flipped learning model on the academic success of students. In this research featuring a descriptive survey model, a quantitative research method has been used. While criterion sampling method has been used for selecting the sample of this research, meta-analysis has been used to analyze the data. The inclusion and exclusion criteria of this study were as follows: Sources must be an article or a thesis; be studies performed in Turkey; have been published between 2014 and 2018; be open-access; the sampling must consist of students; they must examine the effect of the flipped learning model on success; have an experimental design; have pretest/posttest experimenting and a control group design; include data such as pretest and posttest standard deviation, arithmetic average, and sample size. 14 articles and 11 theses, 25 studies formed the study group.Document review technique has been used as data collection technique. As data collection tool, meta-analysis form developed by the researchers has been used. effect size values and unified effect sizes were calculated using Comprehensive Meta-Analysis (CMA) Software.After analysis was conducted based on the random effects model, it was determined that the effect of the flipped learning model on students' success is medium (Hedge's g=0.713). It has been seen that the variables of study type, educational level, and year do not have a significant effect on success (p>0.05). When the effect sizes were examined by year, newer studies had larger effect sizes, while the studies conducted with students at primary-secondary levels and with high school degrees had larger effect size averages.Öğe A multilevel modeling approach to investigating factors impacting computer and information literacy: ICILS Korea and Finland sample(Springer, 2022) Aydin, MustafaWith the rapid technological advancements, schools and teachers have great responsibilities to educate students with regard to technological transformations. Students' ease of access to information and communications technology (ICT) tools provides ample opportunities for the development of these skills, not solely limited to schools. On the other hand, it is known that schools invest efforts to contribute to this process through their updated curricula. Studies on the development of ICT skills show that teachers' behavioral patterns also contribute to students' learning. In the current study, the effect of teacher and student characteristics on students' achievement regarding digital skills was examined together. Within the scope of the research, the characteristics of students and teachers were analyzed through two-level analysis with the data obtained from samples of the prominent countries-Finland and Korea-participating to the International Computer and Information Literacy Study. The analysis regarding the countries involved six models addressing teacher and student characteristics in different contexts. Demographic features, ICT usage purposes and affective characteristics related to ICT were added to the models related to teacher and student characteristics in sets. While gender, computer experience, socio-economic background and general ICT self-efficacy variables came to the fore at the student level, the adequacy of resources were more prominent at teacher level. Discussions were made on the results of the relevant variables in the study.Öğe Predictive Relationship between Humane Values of Adolescents Cyberbullying and Cyberbullying Sensibility(Univ Almeria, 2016) Dilmac, Bulent; Yurt, Eyup; Aydin, Mustafa; Kasarci, IsmailIntroduction. Cyberbullying has been more common than the traditional bullying in recent years. As with the traditional bullying, humane values likely to explain the reason why adolescents tend to bully via cyber-means. Cyber-bullying behaviors also reasoned by adolescent's sensibility towards it. This study investigates the predictive relationships between humane values of adolescents, cyber-bullying and cyber-bullying sensibility. Method. The study consisted of a total 1743 participants from different middle schools in Istanbul, Konya, Mersin, Ordu and Bursa (Turkey). 963 of the participants were females and 780 were males. The study group was selected among adolescents studying at the above mentioned secondary schools by a random cluster sampling method. The study employed the Humane Values Scale, the Cyberbullying Scale and the Cyberbullying Sensibility'' scale. Predictive relationships between humane values of adolescents, cyberbullying and cyberbullying sensibility were analyzed with the Structural Equivalence Model by using the AMOS 19 computer program. Results. Results of the study revealed that each of the humane values like respect, being peaceful, friendship and responsibility are statistically meaningful predictors of cyberbullying sensibility. Besides it was seen that honesty and being peaceful are significant predictors of cyberbullying. Discussion and Conclusion. Rise in adolescents' level of humane values has an important role in increasing sensitivity against cyberbullying. In this sense, a decrease can be observed in also the tendencies to cyberbullying of the adolescents whose sensitivity has increased. On the other hand the result shows that a rise in adolescents' values of being peaceful will increase their tendencies of cyberbullying sensibility. It is estimated that a rise in adolescents' values of friendship and responsibility will increase their cyberbullying sensibility.Öğe Predictive Relationship between Humane Values of Adolescents Cyberbullying and Cyberbullying Sensibility(Univ Almeria, 2016) Dilmac, Bulent; Yurt, Eyup; Aydin, Mustafa; Kasarci, IsmailIntroduction. Cyberbullying has been more common than the traditional bullying in recent years. As with the traditional bullying, humane values likely to explain the reason why adolescents tend to bully via cyber-means. Cyber-bullying behaviors also reasoned by adolescent's sensibility towards it. This study investigates the predictive relationships between humane values of adolescents, cyber-bullying and cyber-bullying sensibility. Method. The study consisted of a total 1743 participants from different middle schools in Istanbul, Konya, Mersin, Ordu and Bursa (Turkey). 963 of the participants were females and 780 were males. The study group was selected among adolescents studying at the above mentioned secondary schools by a random cluster sampling method. The study employed the Humane Values Scale, the Cyberbullying Scale and the Cyberbullying Sensibility'' scale. Predictive relationships between humane values of adolescents, cyberbullying and cyberbullying sensibility were analyzed with the Structural Equivalence Model by using the AMOS 19 computer program. Results. Results of the study revealed that each of the humane values like respect, being peaceful, friendship and responsibility are statistically meaningful predictors of cyberbullying sensibility. Besides it was seen that honesty and being peaceful are significant predictors of cyberbullying. Discussion and Conclusion. Rise in adolescents' level of humane values has an important role in increasing sensitivity against cyberbullying. In this sense, a decrease can be observed in also the tendencies to cyberbullying of the adolescents whose sensitivity has increased. On the other hand the result shows that a rise in adolescents' values of being peaceful will increase their tendencies of cyberbullying sensibility. It is estimated that a rise in adolescents' values of friendship and responsibility will increase their cyberbullying sensibility.Öğe Production of Bioactive Various Lattices as an Artificial Bone Tissue by Digital Light Processing 3D Printing(Springer, 2021) Dokuz, M. Enes; Aydin, Mustafa; Uyaner, MesutThis study aims to find which lattice type and which ingredient is the best for the bone lattice for future grafting operations. Four types of lattice parts with micro and high porosity were designed to resemble the human bone structure and reach its light-weight and high surface area properties. Hydroxyapatite (HA) and tricalcium phosphate (TCP) were used in the photopolymer resin mixture for (Digital Light Processing) DLP 3D printing to give high bioactivity capability to the parts. In conclusion, microporosity HA- and TCP-doped parts were printed successfully with the DLP technique. Bioactivity tests were carried out with parts that were soaked in simulated body fluid (SBF). There is no significant weight difference in lattice parts in the time. Four weeks are sufficient time for the test. End of 2 weeks, calcium phosphate particles with around a diameter of 50-75 mu m, and end of 4 weeks, calcium phosphate particles with around a diameter of 80-225 mu m were observed. Apatite precipitation areas were grown on the surface in time. SEM and XRD results indicate that HA-doped and TCP-doped specimens are bioactive. A more mass increase was observed in the HA-doped specimen compared to the TCP-doped specimen.Öğe Profiles of academically resilient students: An examination on TIMSS mathematics data(Springer, 2023) Aydin, Mustafa; Erdem, CahitThis study reveals the roles of various student and school characteristics in defining the academically resilient Turkish and Italian students' profiles based on TIMSS 2015 mathematics scores. The results of logistic regression analysis put forth that models for both countries were significant. The achievement of Turkish students was predicted by seven variables while the achievement of Italian students was predicted by two variables. Among all variables, 'academic expectations' and 'confidence in math' had the highest level of increase in the odds of being academically resilient. Results are comparatively discussed, and the study offers critical results for understanding resilience.Öğe Reliability and Validity Study of the Mobile Learning Adoption Scale Developed Based on the Diffusion of Innovations Theory(Necmettin Erbakan Univ, 2014) Celik, Ismail; Sahin, Ismail; Aydin, MustafaIn this study, a mobile learning adoption scale (MLAS) was developed on the basis of Rogers' (2003) Diffusion of Innovations Theory. The scale that was developed consists of four sections. These sections are as follows: Stages in the innovation-decision process, Types of m-learning decision, Innovativeness level and attributes of m-learning. There is one question at the level of classification regarding the investigated characteristics of the participants in the first three sections of the scale. The last section of the scale is composed of 18 items and 5 sub-dimensions in the 7-item Likert type. MLAS was developed in three stages. In the first stage, a detailed review of literature was performed and an item pool was formed. In the second stage, explanatory factor analysis was performed to determine the factor structure of the scale while confirmatory factor analysis was performed to test whether the factors formed confirmed the theory or not. In the final stage of the study, the reliability of the scale was determined through item, test-retest reliability and internal consistency (Cronbach Alpha) analyses. In conclusion, the scale developed within the scope of this study was shown to yield valid and reliable scores.
