Engin Karadag
Biographic Data
| ID | 2580263 |
|---|---|
| NAME | Engin Karadag |
| GIVEN NAMES | Engin |
| FAMILY NAME | Karadag |
| SIGNATURE | KARADAG E |
| AFFILIATIONS | Akdeniz University |
| ORCID | 0000-0002-9723-3833 |
| VERIFIED | Yes |
| TOTAL WORKS | 25 |
| TOTAL CITATIONS | 4 |
| AUTHOR COUNT | 25 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2015 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 1 |
Pull or Pull -er
International student mobility has become an increasingly important dimension of higher education internationalization, particularly for emerging destination countries such as Turkey. This study investigates the key factors influencing international university students’ decisions to choose Turkey as a study destination and examines how these motivations vary according to students’ regions of origin. Data were collected using the 3-Key Rationaliza…
The effect of educational leadership on students’ achievement
This meta-analysis combined various leadership approaches to examine the relationship between educational leadership and student achievement. The literature review encompassed 348 independent research articles/dissertations, with a sample group of 3,659,268 study subjects. Analyses conducted using a random-effects model revealed that educational leadership had a medium-level effect on student achievement. The impact of educational leadership on s…
Individual and cultural predictors of sociocultural adaptations of international higher education students in Türkiye
International student mobility continues to expand worldwide, but research on the sociocultural adaptation of international students in Türkiye remains limited and theoretically dispersed. This study sought to fill that gap by exploring how cultural and economic capital, general self-efficacy, culture shock, acculturation strategies, and key demographic factors shape students’ adjustment. Drawing on data from 3,554 students at 30 universities, we…
Contributions from Türkiye on grade inflation in higher education
Numerous reputable studies have reported a significant grade increase during the COVID-19 pandemic. These short-term increases cannot be attributed to student achievement, suggesting that the pandemic has precipitated grade inflation. In this study, we examine the temporary and permanent effects of the COVID-19 pandemic on grade inflation in higher education. We analyze 954,389 student grades for 16,962 courses taught by 5916 instructors in five …
Acculturation strategies of international higher education students in Türkiye
Understanding the factors influencing acculturation strategies among international students cannot be overstated, as successful adaptation is crucial for academic success and overall well-being. Although extensive research has explored these dynamics in various contexts, a notable gap remains in the literature on international students in Türkiye. This study aimed to investigate the effects of social support, cultural and economic capital, self-e…
The Floor Is (Y)Ours
The current study investigated the perspectives of auxiliary staff regarding their profession. This study used a holistic multiple‐case study design and a qualitative research method. The sample consisted of 45 auxiliary staff who worked in various K12 public schools in the central districts of a city in Turkey and voluntarily participated in the study. The study's participants, which was designed using a case study design, consisted of 45 auxili…
Evaluating value measures across cultures
The Schwartz Value Survey (SVS) is a widely used instrument for assessing personal values across different cultures. However, various versions of the SVS have been developed over the years, leading to differences in item wording, response scales, and underlying theoretical frameworks. This article critically examines the implications of using different versions of the SVS in Turkish context. We review the history and development of the SVS, highl…
Better than not starting? Research university project of Turkey
Initiatives to build research universities to have world-class universities, the creator and the disseminator of scientific knowledge in knowledge-based economies, are among the most important policy reactions in higher education systems. With an increase in demands on greater accountability, transparency, and efficiency, studies investigating the excellence initiatives of different countries are growing in number. However, the literature on the …
Culturally responsive teaching in higher education
In this study, we aimed to examine the factors affecting the culturally responsive teaching competencies of academics and tested whether the personality traits and personal meaning profiles of the academics had significant effects on culturally responsive teaching self-efficacy. Data were obtained from 1,883 academics by using the Culturally Responsive Teaching Self-Efficacy Scale, Ten-Item Personality Inventory and Personal Meaning Profile Scale…
Impact of culture shock, acculturation approaches, and sociocultural adaptation on perceived proficiency in Turkish and English among international students in Turkey
The primary objective of this study was to investigate the influence of culture shock, acculturation strategies, and sociocultural adjustment on the perceived Turkish and English language proficiency of international students in Turkey. Data were collected from 3554 international students in Turkey whose native language was neither Turkish nor English, using the "Culture Shock Questionnaire", "Acculturation Measurement", and "Sociocultural Adjust…
Achievement emotion in war victim children
The Syrian government’s violent suppression of pro-democracy protests in March 2011 sparked a civil war that resulted in the deaths of hundreds of thousands of people and the displacement of millions. This study focuses on the emotional achievement of 357 Syrian primary and secondary school students who have moved to Türkiye and are under temporary protection. The researchers used the achievement emotion scale to collect data. They conducted a t …
Evidence of grade inflation in bachelor of business administration degrees in Turkey for the period from 2002 to 2022
The study analysed the change in the proportion of business management undergraduate programme graduates in Turkey who received honours (>2.99) over the past two decades. It also investigated the factors that contribute to grade inflation and the distribution of course grades. The research employed various statistical methods, including the random effects estimator, ANOVA, t -test, and ANCOVA, to examine the GPAs and 515,739 student grades from 1…
Grade inflation effects of capacity expansion in higher education
This study examined the change in the rate of graduates with high honors (>3.50) in teacher training programs and the factors affecting grade inflation and graduation GPAs over a 20-year period. In the study, the weighted grade point average of 173,232 student-teachers who had graduated from 32 teacher training institutions between 2003 and 2022 was analyzed using the random effects estimator, ANOVA, t test, and ANCOVA. The findings suggest that …
The effect of peer bullying on academic achievement
Focusing on the variables that can affect both academic achievement and the well‐being of students has been crucial for their development, making schools effective and designing educational policy as well as curriculum. The study has aimed to investigate the effect of peer bullying on academic achievement and to determine moderators in the relationship between these two terms by using TIMSS (The Trends in International Mathematics and Science Stu…
Culture shock among international students in Turkey
In this study, we investigated whether the interaction effects of self-efficacy, life satisfaction, and sociocultural adjustment have significant negative effects on culture shock. The data were collected from 323 international students in Turkey, and the sample comprised 197 undergraduates (61%) and 126 graduates (39%). We administered the "Culture Shock Questionnaire," "General Self-Efficacy Scale", "The Satisfaction with Life Scale", and "Soci…
Between gendered walls
Defining standards for rankings
The role of universities as the engines of knowledge‐based economies drives global internationalisation of higher education. This contributes to a competitive environment where higher education rankings indicate market value. Even though rankings are influential and are used a lot, ranking systems have been heavily critiqued. One of the problems is that there are few if any external checks on how rankings are created. The purpose of the study on …
Deepening the Effects of the Academic Inbreeding
Development and Validation of the Parent-Rated Sensory Reactivity Scale for Children with Autism Spectrum Disorder
This study examined the new parent-report assessment’s reliability and validity, the Eyuboglu Sensory Reactivity Scale (ESRS), in children with ASD. The ESRS was designed to assess the frequency of sensory behaviors in children with ASD. A total of 167 (age 2–18, M = 6.4±4.1 years, 79.6 % male) children and their families were included. Parents were asked to fill in the ESRS and the Autism Behavior Checklist (ABC). In addition, the Childhood Auti…
Effects of leadership on performance
We investigated the correlation between leadership types and performance in different national cultural contexts and across sectors through a meta-analysis of 79 studies published between 1995 and 2020 using a random effects model. Although the analysis indicated that the type of leadership has only a medium-level effect on performance, our moderator analysis of the national culture variable found that the effect of leadership on performance was …
Measurement invariance of the Phubbing Scale across 20 countries
Mobile phone addiction is a robust phenomenon observed throughout the world. The social aspect of mobile phone use is crucial; therefore, phubbing is a part of the mobile phone addiction phenomenon. Phubbing is defined as ignoring an interlocutor by glancing at one's mobile phone during a face‐to‐face conversation. The main aim of this study was to investigate how the Phubbing Scale (containing 10 items) might vary across countries, and between g…
Academic (dis)qualifications of Turkish rectors
Sofalizing and its relationship with social media addiction and psychosocial factors
Sofalizing is a term that emerged from the combination of the words ‘sofa’ and ‘socializing’, and can be defined as interacting with others online from home rather than going out and actually meeting individuals. In the present study, the relationships between psychosocial factors (including social anxiety and social connectedness) and sofalizing were examined. Additionally, the possible mediating role of social media addiction between social anx…
Determinants of phubbing, which is the sum of many virtual addictions
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 relatio…
School Culture and Academic Achievement of Students
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 …
Sofalizing and its relationship with social media addiction and psychosocial factors
Sofalizing is a term that emerged from the combination of the words ‘sofa’ and ‘socializing’, and can be defined as interacting with others online from home rather than going out and actually meeting individuals. In the present study, the relationships between psychosocial factors (including social anxiety and social connectedness) and sofalizing were examined. Additionally, the possible mediating role of social media addiction between social anx…
Between gendered walls
School Culture and Academic Achievement of Students
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 …
Determinants of phubbing, which is the sum of many virtual addictions
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 relatio…
School Culture and Academic Achievement of Students
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 …
Sofalizing and its relationship with social media addiction and psychosocial factors
Sofalizing is a term that emerged from the combination of the words ‘sofa’ and ‘socializing’, and can be defined as interacting with others online from home rather than going out and actually meeting individuals. In the present study, the relationships between psychosocial factors (including social anxiety and social connectedness) and sofalizing were examined. Additionally, the possible mediating role of social media addiction between social anx…
Measurement invariance of the Phubbing Scale across 20 countries
Mobile phone addiction is a robust phenomenon observed throughout the world. The social aspect of mobile phone use is crucial; therefore, phubbing is a part of the mobile phone addiction phenomenon. Phubbing is defined as ignoring an interlocutor by glancing at one's mobile phone during a face‐to‐face conversation. The main aim of this study was to investigate how the Phubbing Scale (containing 10 items) might vary across countries, and between g…
Academic (dis)qualifications of Turkish rectors
Deepening the Effects of the Academic Inbreeding
Development and Validation of the Parent-Rated Sensory Reactivity Scale for Children with Autism Spectrum Disorder
This study examined the new parent-report assessment’s reliability and validity, the Eyuboglu Sensory Reactivity Scale (ESRS), in children with ASD. The ESRS was designed to assess the frequency of sensory behaviors in children with ASD. A total of 167 (age 2–18, M = 6.4±4.1 years, 79.6 % male) children and their families were included. Parents were asked to fill in the ESRS and the Autism Behavior Checklist (ABC). In addition, the Childhood Auti…
Effects of leadership on performance
We investigated the correlation between leadership types and performance in different national cultural contexts and across sectors through a meta-analysis of 79 studies published between 1995 and 2020 using a random effects model. Although the analysis indicated that the type of leadership has only a medium-level effect on performance, our moderator analysis of the national culture variable found that the effect of leadership on performance was …
Defining standards for rankings
The role of universities as the engines of knowledge‐based economies drives global internationalisation of higher education. This contributes to a competitive environment where higher education rankings indicate market value. Even though rankings are influential and are used a lot, ranking systems have been heavily critiqued. One of the problems is that there are few if any external checks on how rankings are created. The purpose of the study on …
Evidence of grade inflation in bachelor of business administration degrees in Turkey for the period from 2002 to 2022
The study analysed the change in the proportion of business management undergraduate programme graduates in Turkey who received honours (>2.99) over the past two decades. It also investigated the factors that contribute to grade inflation and the distribution of course grades. The research employed various statistical methods, including the random effects estimator, ANOVA, t -test, and ANCOVA, to examine the GPAs and 515,739 student grades from 1…
Grade inflation effects of capacity expansion in higher education
This study examined the change in the rate of graduates with high honors (>3.50) in teacher training programs and the factors affecting grade inflation and graduation GPAs over a 20-year period. In the study, the weighted grade point average of 173,232 student-teachers who had graduated from 32 teacher training institutions between 2003 and 2022 was analyzed using the random effects estimator, ANOVA, t test, and ANCOVA. The findings suggest that …
The effect of peer bullying on academic achievement
Focusing on the variables that can affect both academic achievement and the well‐being of students has been crucial for their development, making schools effective and designing educational policy as well as curriculum. The study has aimed to investigate the effect of peer bullying on academic achievement and to determine moderators in the relationship between these two terms by using TIMSS (The Trends in International Mathematics and Science Stu…
Culture shock among international students in Turkey
In this study, we investigated whether the interaction effects of self-efficacy, life satisfaction, and sociocultural adjustment have significant negative effects on culture shock. The data were collected from 323 international students in Turkey, and the sample comprised 197 undergraduates (61%) and 126 graduates (39%). We administered the "Culture Shock Questionnaire," "General Self-Efficacy Scale", "The Satisfaction with Life Scale", and "Soci…
Between gendered walls
Acculturation strategies of international higher education students in Türkiye
Understanding the factors influencing acculturation strategies among international students cannot be overstated, as successful adaptation is crucial for academic success and overall well-being. Although extensive research has explored these dynamics in various contexts, a notable gap remains in the literature on international students in Türkiye. This study aimed to investigate the effects of social support, cultural and economic capital, self-e…
The Floor Is (Y)Ours
The current study investigated the perspectives of auxiliary staff regarding their profession. This study used a holistic multiple‐case study design and a qualitative research method. The sample consisted of 45 auxiliary staff who worked in various K12 public schools in the central districts of a city in Turkey and voluntarily participated in the study. The study's participants, which was designed using a case study design, consisted of 45 auxili…
Evaluating value measures across cultures
The Schwartz Value Survey (SVS) is a widely used instrument for assessing personal values across different cultures. However, various versions of the SVS have been developed over the years, leading to differences in item wording, response scales, and underlying theoretical frameworks. This article critically examines the implications of using different versions of the SVS in Turkish context. We review the history and development of the SVS, highl…
Better than not starting? Research university project of Turkey
Initiatives to build research universities to have world-class universities, the creator and the disseminator of scientific knowledge in knowledge-based economies, are among the most important policy reactions in higher education systems. With an increase in demands on greater accountability, transparency, and efficiency, studies investigating the excellence initiatives of different countries are growing in number. However, the literature on the …
Culturally responsive teaching in higher education
In this study, we aimed to examine the factors affecting the culturally responsive teaching competencies of academics and tested whether the personality traits and personal meaning profiles of the academics had significant effects on culturally responsive teaching self-efficacy. Data were obtained from 1,883 academics by using the Culturally Responsive Teaching Self-Efficacy Scale, Ten-Item Personality Inventory and Personal Meaning Profile Scale…
Impact of culture shock, acculturation approaches, and sociocultural adaptation on perceived proficiency in Turkish and English among international students in Turkey
The primary objective of this study was to investigate the influence of culture shock, acculturation strategies, and sociocultural adjustment on the perceived Turkish and English language proficiency of international students in Turkey. Data were collected from 3554 international students in Turkey whose native language was neither Turkish nor English, using the "Culture Shock Questionnaire", "Acculturation Measurement", and "Sociocultural Adjust…
Achievement emotion in war victim children
The Syrian government’s violent suppression of pro-democracy protests in March 2011 sparked a civil war that resulted in the deaths of hundreds of thousands of people and the displacement of millions. This study focuses on the emotional achievement of 357 Syrian primary and secondary school students who have moved to Türkiye and are under temporary protection. The researchers used the achievement emotion scale to collect data. They conducted a t …
Pull or Pull -er
International student mobility has become an increasingly important dimension of higher education internationalization, particularly for emerging destination countries such as Turkey. This study investigates the key factors influencing international university students’ decisions to choose Turkey as a study destination and examines how these motivations vary according to students’ regions of origin. Data were collected using the 3-Key Rationaliza…
The effect of educational leadership on students’ achievement
This meta-analysis combined various leadership approaches to examine the relationship between educational leadership and student achievement. The literature review encompassed 348 independent research articles/dissertations, with a sample group of 3,659,268 study subjects. Analyses conducted using a random-effects model revealed that educational leadership had a medium-level effect on student achievement. The impact of educational leadership on s…
Individual and cultural predictors of sociocultural adaptations of international higher education students in Türkiye
International student mobility continues to expand worldwide, but research on the sociocultural adaptation of international students in Türkiye remains limited and theoretically dispersed. This study sought to fill that gap by exploring how cultural and economic capital, general self-efficacy, culture shock, acculturation strategies, and key demographic factors shape students’ adjustment. Drawing on data from 3,554 students at 30 universities, we…
Contributions from Türkiye on grade inflation in higher education
Numerous reputable studies have reported a significant grade increase during the COVID-19 pandemic. These short-term increases cannot be attributed to student achievement, suggesting that the pandemic has precipitated grade inflation. In this study, we examine the temporary and permanent effects of the COVID-19 pandemic on grade inflation in higher education. We analyze 954,389 student grades for 16,962 courses taught by 5916 instructors in five …
Psychology (18 works) · Social Psychology (10 works) · Sociology (10 works) · Higher education (8 works) · Mathematics education (8 works) · Political science (8 works) · Medicine (7 works) · Economics (6 works) · International Student and Expatriate Challenges (6 works) · Computer Science (5 works)