Engin Karadağ

Determinants of phubbing, which is the sum of many virtual addictions: A structural equation model

Background and Aims Phubbing can be described as an individual looking at his or her mobile phone during a conversation with other individuals, dealing with the mobile phone and escaping from interpersonal communication. In this research, determinants of phubbing behavior were investigated; in addition, the effects of gender, smart phone ownership and social media membership were tested as moderators. Methods To examine the cause–effect relations among the variables of the theoretical model, the research employs a correlational design. Participants were 409 university students who were selected via random sampling. Phubbing was obtained via the scales featuring mobile phone addiction, SMS addiction, internet addiction, social media addiction and game addiction. The obtained data were analyzed using a correlation analysis, multiple linear regression analysis and structural equation model. Results The results showed that the most important determinants of phubbing behavior are mobile phone, SMS, social media and internet addictions. Discussion Although the findings show that the highest correlation value explaining phubbing is a mobile phone addiction, the other correlation values reflect a dependency on the phone. Conclusions There is an increasing tendency towards mobile phone use, and this tendency prepares the basis of phubbing.

Instruction of Statistics via Computer-Based Tools: Effects on Statistics' Anxiety, Attitude, and Achievement

The purpose of this study was to determine the effect of statistics instruction using computer-based tools, on statistics anxiety, attitude, and achievement. This study was designed as quasi-experimental research and the pattern used was a matched pre-test/post-test with control group design. Data was collected using three scales: a Statistics Anxiety Rating Scale, a Statistics Attitude Scale, and a Statistics Achievement Scale. ANCOVA and MANCOVA analyses the used during the analysis process. The findings of the study revealed that computer-based tools statistic instruction reduces statistics anxiety and improves attitude toward statistics and increases success.

A Path Analysis Study of School Culture and Teachers' Organisational Commitment

In this study, the direct and indirect relations between school culture and the organisational commitment of primary school teachers were analyzed. The subjects of the research consisted of primary school teachers who worked at a district in Istanbul in the academic year 2007–2008. The sampling group was defined by the cluster sampling method. In total 200 teachers participated. Two scales were used to collect data, the organisational commitment scale (OCS) and the school culture scale (SCS). Linear regression and path analysis were used to explain the influence of school culture on organisational commitment, and LISREL 7 was used as a structural equation model. The findings indicated that although there was a positive correlation between school culture and organisational commitment, the direct effect of school culture on organisational commitment was not meaningful.

Öğretmen Yetkinliğinin Tarihsel Gelişimi ve Ohio Öğretmen Yetkinlik Ölçeği: Türk Kültürüne Uyarlama, Dil Geçerliği ve Faktör Yapısının İncelenmesi

Yetkinlik, basarili bir ogretim gorevi icin gerekli bir niteliktir. Ogretmenler bu niteligin temellerini ogretmenlik egitimi suresi icerisinde (egitim fakultelerinde) kazanmakta, ilk ve ortaogretim kurumlarinda yuruttukleri ogretim gorevi icerisinde de gelistirmektedirler. Yetkinlik konusunun kuramsal temelleri Rotter’in (1966) Kontrol Odagi ve Bandura’nin (1977) Sosyal Ogrenme kuramlarina dayanir. Bu kavramin ayrica, bir durumsal liderlik teorisi olan Reddin’in (1970) 3D Kuramiyla da iliskili oldugu gorulmektedir. Bu calismada, ogretmen yetkinligi kavrami bu uc teoriyle cizilen kavramsal cercevede tartisilarak aciklanmaya calisilmistir. Yine bu calismada Ogretmen Yetkinligi konusunda Tschannen-Moran & Woolfolk-Hoy (2001) tarafindan gelistirilen Ohio Ogretmen Yetkinlik Olcegi’nin Turk kulturune uyarlamasi yapilarak dil gecerligi ve faktor yapisi incelenmistir.

The Effect of LeadershipLeadership on Organizational Performance

The effect of leadership on organizational performance was examined in this meta-analysis study. A total of 598 research studies were collected as a result of the review, out of which 270 were included in the meta-analysis. The 270 research studies were compiled to obtain a sample group /sector size of 101,232 subjects. The analysis results of the random effect model showed that leadership has a medium-level effect on organizational performance . Of the moderators identified, such as leadership style /approach, sample group /sector, publication type and publication year, it was found that leadership style /approach and publication year were moderator variables.

Discussion, Limitations and Suggestions

The correlational values obtained from research studies investigating the relationship between leadership and organizational outputs were quantitatively analyzed in this meta-analytic study. To determine the impact magnitudes of 13 organizational outputs of leadership , a sample group with a total of 600,201 subjects was compiled using 1,250 pieces of correlational data. The findings showed that leadership had a small-magnitude, positive effect on conflict management , medium-magnitude, positive effects on job satisfaction , organizational commitment , organizational culture , organizational citizenship and performance and large-magnitude, positive effects on organizational trust , organizational climate , organizational health , organizational learning and organizational justice . In contrast, a small-magnitude, negative effect was found for stress and burnout with regard to the effect of leadership .

The Effect of School Climate on Student Achievement

The effect of climate on student achievement was examined in this meta-analysis study. A total of 237 research studies were collected during the literature review, out of which 90 were included in the meta-analysis. The 90 research studies were compiled to obtain a sample size of 148,504 subjects. The results of the random effect model showed that climate had a medium-level positive effect on student achievement. The moderators identified for the study were the publication years, publication types, country (culture) , school subject or assessment type and school grade, of which school subject or assessment type and the publication year of research were found to be moderator variables.

The Effect of LeadershipLeadership on Job Satisfaction

The effect of leadership on job satisfaction was examined in this meta-analysis study. A total of 602 research studies were collected during the literature review, out of which 318 were included in the meta-analysis. The 318 research studies were compiled to obtain a sample size of 148,501 subjects. The results of the random effect model showed that leadership has a medium-level positive effect on job satisfaction . The moderators identified for the study were leadership style /approach, sample group /sector, publication type and year of publication , of which leadership style /approach and sample group /sector were found to be moderator variables.

Introduction to Meta-Analysis

As a means to synthesize the results of multiple studies, the chronological development of the meta-analysis method was in parallel to a variety of definitions in the literature. Meta-analysis can be defined in different ways: as a means of summarizing and combining the quantitative results of research or as a method used to reach the quantitative effect size based on individual studies. Meta-analysis uses many quantitative approaches and calculation formulas when compiling multiple research findings. In this sense, no researcher needs to be an expert in all types and calculation formulas for all types of meta-analysis. However, if the researcher lacks familiarity with at least some of the main concepts of meta-analysis, then the correct results may not be obtained. This chapter aims to explain some of the main concepts of meta-analysis.

Analyzing Process of Problem Solving with Group via Statistical Discourse Analysis

* This study was carried out by prepared by Çetin Toraman under the consultancy of Prof. Dr. Engin Karadağ “High School Students’ Levels of Finding Creative Solutions: Statistical Discourse Analysis” from his doctoral thesis. 1 Correspondance to: Çetin Toraman (PhD), Ministry of National Education of Republic of Turkey, Ankara Turkey. Email: toramanacademic@gmail.com 2 Department of Educational Sciences, Akdeniz University, Antalya Turkey. Email: engin.karadag@hotmail.com & enginkaradag@akdeniz.edu.tr Citation: Toraman, Ç., & Karadağ, E. (2018). Analyzing process of problem solving with group via statistical discourse analysis. Educational Sciences: Theory & Practice, 18, 229–252. http://dx.doi.org/10.12738/estp.2018.2.0309 Abstract The aim of this research is to examine the effects of various variables (cognitive flexibility, school achievement, physics course success, gender, popularity, family income level) and communication that occur between students in the problem solving process of the high school students. The research, which was designed according to the mixed research approach, was carried out with 80 tenth grade students determined by high school education and purposive sampling. It is given in research; the problem form was obtained by cognitive flexibility scale and observations, the discourses obtained from the observations were coded, and the data obtained from the other variables were categorized. Problem solving situation is coded with rubric in accordance with ordinal variable. Data is analyzed by modelling with multi-level sequential logistic regression and sequential logistic regression analysis. Findings showed that obtaining a creative solution to the problem is related to the success of the physics course related to solution of the problem rather than the general academic achievement, it is related to cognitive flexibility level, gender, family income level. The higher the level of cognitive flexibility and the level of family income, the higher likelihood of reaching creative solutions. The probability of women reaching creative solution is lower than men. The number of discourses and rudely disagreeing discourses in schools with low achievement levels are higher than those of successful schools. While presenting suggestions that are modelled as descriptive in reaching creative solutions, discourse of ignorance is meaningful variable; approval, politely disagreeing, rudely disagreeing are not meaningful variables.