Yusuf Ay

The Effect of Learning Types/Styles on Student Achievement

The effect of learning types/styles on student achievement was examined in this meta-analysis study. A total of 443 research studies were collected during the literature review, out of which 60 were included in the meta-analysis. The 60 research studies were compiled to obtain a sample size of 26,391 subjects. The results of the random effect model showed that learning types/styles have a medium-level positive effect on student achievement. The moderators identified for the study were type of publication, sample group, school subject, tools of data collection, the year of the studies and culture, of which sample group, school subject, tools of data collection and the year of the studies were found to be the moderator variables.

Türkiye’de Eğitim Bilimleri ve Öğretmen Yetiştirme Alanındaki Bilimsel Yayınların Atıf Analizleri

Bu arastirmada, Turkiye’nin egitim bilimleri ve ogretmen yetistirme alanindaki bilimsel yayinlarin atif analizlerinin yapilmasi amaclanmistir. Bu amac dogrultusunda, ilgili alanda faaliyet gosteren 32 hakemli dergide 2005-2014 yillari arasinda yayimlanan 7.681 makale uzerinden kapsamli bir atif analizi gerceklestirilmistir. Arastirmada elde edilen sonuclara bakildiginda; incelenen 7.681 makalenin kaynakcasinda yer alan farkli turlerdeki kaynaklara toplam 249.335 atif yapilmistir ve atiflarin yarisindan fazlasini dergiler olusturmaktadir. Yapilan atif sayilarinda yillara gore bir artis gorulmekte olup soz konusu artisin kaynagi dergilere yapilan atiflardir. Makalelerde toplam 65.537 farkli kaynaga atif yapilmis olup en fazla atif yapilan ilk uc eser arastirma yontemleri kitaplaridir. Atif yapilan kaynaklarin yari yasami 9,64 olup makalelerin yari yasam yili ile yazar sayisi, bildiri ve diger atif sayilari arasinda negatif; toplam atif, kitap atif ve dergi atif sayilari arasinda pozitif iliski saptanmistir.

Scientific Publication Map of Journals Published in the Field of Educational Sciences in Turkey: An Analysis Impact Factors of Journals

In this study, it is aimed to determine the reference analysis of scientific journal published in educational sciences field in Turkey and their impact factors. In accordance with this purpose, a detailed reference analysis was made on 7681 articles published in 32 peer- reviewed scientific journal between 2005-2014 and then impact factor of each journal was determined. While deciding the journals to be used as data source in the study, the criteria was that contents and names of journals should have the words ‘education’, ‘instruction’, ‘educational sciences’, ‘teacher education’, and ‘teacher training’. A code number was given to each data of 7681 articles and 15052 references which was taken within the scope of the study and data removing and correction procedures were followed. Before bibliometric and impact factor analysis, descriptive analysis were conducted to measure frequencies (f) and percent (%) values of the articles by years and journals and impact factor coefficient was used to assess the impact factors. . The first three journals that are most referred in the articles which were investigated within the scope of the study are: (i) Hacettepe University Journal of Education, (ii) Educational Sciences: Theory & Practice (iii) Ankara University Journal of Faculty of Educational Sciences. When the year 2014 impact factor coefficients of the journals in the study were investigated, the highest impact factor coefficients were seen in (i) Educational Sciences: Theory & Practice, (ii) Educational Administration: Theory & Practice and (iii) The Journal of Theoretical Educational Science.

School Culture and Academic Achievement of Students: A Meta-analysis Study

Abstract The relationship between school culture and academic achievement was tested through meta- analysis in this paper. 54 studies of which only 25 can be included to the meta- analysis were examined in literature review. Through this paper, sample group of 20287 people was formed by gathering 25 independent studies. Based on the findings of analysis which were made by using random effects model, there were no publication bias in the obtained data and it was confirmed that school culture had a statistically significant effect on students’ academic achievement.

The Effect of Leadership on Organizational Stress

The effect of leadership on organizational stress was examined in this meta-analysis study. A total of 190 research studies were collected as a result of the review, out of which 41 were included in the meta-analysis. The 41 research studies were compiled to obtain a sample group /sector size of 25,650 subjects. The analysis results of the random effect model showed that leadership has a small negative effect on organizational justice . Sample group /sector type, leadership style /approach and the leadership scales used in the research studies were moderator variables of the study, and it was found that publication type and publication year were not moderator variables.

The Effect of LeadershipLeadership on Organizational StressOrganizational stress

The effect of leadership on organizational stress was examined in this meta-analysis study. A total of 190 research studies were collected as a result of the review, out of which 41 were included in the meta-analysis. The 41 research studies were compiled to obtain a sample group /sector size of 25,650 subjects. The analysis results of the random effect model showed that leadership has a small negative effect on organizational justice . Sample group /sector type, leadership style /approach and the leadership scales used in the research studies were moderator variables of the study, and it was found that publication type and publication year were not moderator variables.

The Effect of Leadership Leadership on Organizational Stress Organizational stress

The effect of leadership on organizational stress was examined in this meta-analysis study. A total of 190 research studies were collected as a result of the review, out of which 41 were included in the meta-analysis. The 41 research studies were compiled to obtain a sample group /sector size of 25,650 subjects. The analysis results of the random effect model showed that leadership has a small negative effect on organizational justice . Sample group /sector type, leadership style /approach and the leadership scales used in the research studies were moderator variables of the study, and it was found that publication type and publication year were not moderator variables.

The Effect of Leadership Leadership on Organizational Citizenship

The effect of leadership on organizational citizenship was examined in this meta-analysis study. A total of 74 research studies were collected as a result of a literature review, out of which 55 were included in the meta-analysis. The 55 research studies were compiled to obtain a sample size of 140,395 subjects. The analysis results of the random effect model showed that leadership has a medium-level positive effect on organizational citizenship . In the study of the sample group /sector, year of publication , and leadership style /approach moderators, only year of publication was found to be a moderator variable.

The Effect of LeadershipLeadership on Organizational Citizenship

The effect of leadership on organizational citizenship was examined in this meta-analysis study. A total of 74 research studies were collected as a result of a literature review, out of which 55 were included in the meta-analysis. The 55 research studies were compiled to obtain a sample size of 140,395 subjects. The analysis results of the random effect model showed that leadership has a medium-level positive effect on organizational citizenship . In the study of the sample group /sector, year of publication , and leadership style /approach moderators, only year of publication was found to be a moderator variable.

The Effect of Leadership on Organizational Citizenship

The effect of leadership on organizational citizenship was examined in this meta-analysis study. A total of 74 research studies were collected as a result of a literature review, out of which 55 were included in the meta-analysis. The 55 research studies were compiled to obtain a sample size of 140,395 subjects. The analysis results of the random effect model showed that leadership has a medium-level positive effect on organizational citizenship . In the study of the sample group /sector, year of publication , and leadership style /approach moderators, only year of publication was found to be a moderator variable.