Hakan Koğar
Biographic Data
| ID | 4598965 |
|---|---|
| NAME | Hakan Koğar |
| GIVEN NAMES | Hakan |
| FAMILY NAME | Koğar |
| SIGNATURE | KOĞAR H |
| AFFILIATIONS | Akdeniz University |
| ORCID | 0000-0001-5749-9824 |
| VERIFIED | Yes |
| TOTAL WORKS | 5 |
| TOTAL CITATIONS | 0 |
| AUTHOR COUNT | 5 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2021 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 0 |
Development of short (CTAS-S) and very short (CTAS-VS) form of children’s test anxiety scale using ant colony optimization
The aim of the present study was to develop short and very short forms of the Children’s Test Anxiety Scale (CTAS) using the ant colony optimization (ACO) algorithm. The item selection algorithm for the short form was applied to Sample 1 ( N = 570), and the best-fitting short form was identified based on validity and reliability evidence. These analyses were then replicated with Sample 2 ( N = 825) to confirm the findings. Children’s Perceived Ac…
Network analysis of academic achievement and psychological characteristics of secondary school adolescents
In this study, network analysis was conducted using an exploratory approach on the variables of self-efficacy, academic resilience (AR), cognitive test anxiety and academic achievement (ACH), which are frequently examined in educational research. Data were collected from a total of 828 Turkish secondary school adolescents (51.9% female), using three different self-reported scales for self-efficacy, AR and cognitive test anxiety, as well as an ACH…
Using a bifactor exploratory structural equation modeling framework to examine the factor structure of the Depression Anxiety and Stress Scales-21
A Bifactor-Esem Representation of the Multidimensional Scale of Perceived Social Support
The aim of this study is to examine the factor structure of Turkish version of the Multidimensional Scale of Perceived Social Support (MSPSS) and to analyze its psychometric properties through the bifactor-ESEM framework. Using a convenience sample of 1124 Turkish adults, seven different models were tested. The results supported the superiority of a bifactor-ESEM solution that included three specific factors (family, friends, and significant othe…
Timss 2015 Seki̇zi̇nci̇ Sinif Matemati̇k Başari Testi̇ni̇n Oecd Ülkeleri̇ne Göre Ölçme Deği̇şmezli̇ği̇ni̇n İncelenmesi̇
Bu aratrmann amac Uluslararas Matematik ve Fen Eilimleri Aratrmas (TIMSS-Trends in International Mathematics and Science Study) 2015 verileri kullanlarak, matematik baar testine katlan 8. Snf rencilerinin matematik baarlarnn ktisadi birlii ve Kalknma Tekilat (The Organsaton For Economc Co-Operaton and Development OECD) lkelerine gre lme deimezliinin incelenmesidir. Aratrma 11 no'lu kitap alm olan 7.223 renciye ait veri seti zerinden yrtlm olup, l…
No prominent works on this page.
Timss 2015 Seki̇zi̇nci̇ Sinif Matemati̇k Başari Testi̇ni̇n Oecd Ülkeleri̇ne Göre Ölçme Deği̇şmezli̇ği̇ni̇n İncelenmesi̇
Bu aratrmann amac Uluslararas Matematik ve Fen Eilimleri Aratrmas (TIMSS-Trends in International Mathematics and Science Study) 2015 verileri kullanlarak, matematik baar testine katlan 8. Snf rencilerinin matematik baarlarnn ktisadi birlii ve Kalknma Tekilat (The Organsaton For Economc Co-Operaton and Development OECD) lkelerine gre lme deimezliinin incelenmesidir. Aratrma 11 no'lu kitap alm olan 7.223 renciye ait veri seti zerinden yrtlm olup, l…
Using a bifactor exploratory structural equation modeling framework to examine the factor structure of the Depression Anxiety and Stress Scales-21
A Bifactor-Esem Representation of the Multidimensional Scale of Perceived Social Support
The aim of this study is to examine the factor structure of Turkish version of the Multidimensional Scale of Perceived Social Support (MSPSS) and to analyze its psychometric properties through the bifactor-ESEM framework. Using a convenience sample of 1124 Turkish adults, seven different models were tested. The results supported the superiority of a bifactor-ESEM solution that included three specific factors (family, friends, and significant othe…
Network analysis of academic achievement and psychological characteristics of secondary school adolescents
In this study, network analysis was conducted using an exploratory approach on the variables of self-efficacy, academic resilience (AR), cognitive test anxiety and academic achievement (ACH), which are frequently examined in educational research. Data were collected from a total of 828 Turkish secondary school adolescents (51.9% female), using three different self-reported scales for self-efficacy, AR and cognitive test anxiety, as well as an ACH…
Development of short (CTAS-S) and very short (CTAS-VS) form of children’s test anxiety scale using ant colony optimization
The aim of the present study was to develop short and very short forms of the Children’s Test Anxiety Scale (CTAS) using the ant colony optimization (ACO) algorithm. The item selection algorithm for the short form was applied to Sample 1 ( N = 570), and the best-fitting short form was identified based on validity and reliability evidence. These analyses were then replicated with Sample 2 ( N = 825) to confirm the findings. Children’s Perceived Ac…
Psychology (4 works) · Anxiety, Depression, Psychometrics, Treatment, Cognitive Processes (2 works) · Child and Adolescent Psychosocial and Emotional Development (2 works) · Clinical Psychology (2 works) · Academic achievement (1 works) · Ant colony (1 works) · Ant colony optimization algorithms (1 works) · Anxiety (1 works) · Clinical Psychology (1 works) · Convergent validity (1 works)