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Article Citation - WoS: 4Citation - Scopus: 3Insomnia Severity Predicts Psychiatric Symptoms: a Cross-Sectional Study Investigating the Partial Mediations of Worry and Rumination(Routledge Journals, Taylor & Francis Ltd, 2024) Turkarslan, Kutlu Kagan; Cinarbas, Deniz CanelObjective: Insomnia as a disorder on its own or as a symptom of other mental disorders can lead to significant distress and lower quality of life. By exacerbating negative affect and emotion dysregulation, poor sleep and insomnia can contribute to the initiation and maintenance of mental disorders. The aim of this cross-sectional study was to investigate the relationship between insomnia severity and overall psychiatric symptoms (anxiety, depression, obsessive-compulsive symptoms, somatization, phobic anxiety, hostility, interpersonal sensitivity, paranoid ideation, and psychoticism), and the mediational roles of worry and rumination in this relationship. Method: The data was collected from a community sample of 1444 participants (females 69.39%, M-age=27.95, SD=9.37) who completed self-report measures of insomnia severity, worry, rumination, and psychiatric symptoms. The mediational roles of worry and rumination were tested with mediation analysis using the PROCESS Macro. Results: It was found that insomnia severity (beta=0.20, p<.001) significantly predicted psychiatric symptoms directly and via worry and rumination (beta=0.33, p<.001), meaning that worry and rumination partially mediated the relationship between insomnia severity and psychiatric symptoms. The findings were similar after controlling for smoking status, daily screen time, coffee consumption in the evening, weekly exercise frequency, and pre-sleep screen time. Conclusions: Interventions targeting the reduction of insomnia severity and maladaptive emotion regulation strategies (e.g., worry and rumination), as well as the enhancement of adaptive emotion regulation strategies (e.g., positive refocusing and mindfulness), may alleviate the adverse effects of insomnia on psychiatric symptoms.Article Citation - WoS: 11Testing the Hysteresis Effect in the Us State-Level Unemployment Series(Routledge Journals, Taylor & Francis Ltd, 2020) Omay, Tolga; Ozcan, Burcu; Shahbaz, MuhammedThis paper re-examines the stochastic time series behaviour of the monthly unemployment rate in 50 states of the United States (US) for the period 1976-2017 using a number of state-of-the-art unit root tests. The new developments incorporate structural break, nonlinearity, asymmetry, and cross-sectional correlation within panel-data estimation including the use of a sequential panel selection method. While not previously considered, sequential panel selection enabled us to determine and separate the stationary and nonstationary series in the sample. The empirical findings are in support of the stationarity of unemployment rate in 47 states. The findings confirm a natural rate hypothesis for the labour markets in the most US states, indicating that labour market shocks have solely temporary effects on state-level unemployment. This empirical study provides significant state-specific policy implications.Article Citation - WoS: 2Citation - Scopus: 2Legislative Committees in the Turkish Parliament: Performing Procedural Minimum or Effective Scrutiny?(Routledge Journals, Taylor & Francis Ltd, 2023) Bektas, Eda; Political Science and Public AdministrationThis study examines committee influence on government bills during the AKP's 2011-2015 majority government term in Turkey, an era characterised by democratic backsliding. It explores whether committees introduce more substantial amendments to government bills when they draw on their scrutiny powers (i.e. hearing sponsoring ministers, hearing stakeholders, forming subcommittees, secondary committee review) providing them diverse information and policy expertise. I hypothesise and test under what conditions committees use these competencies to initiate substantial changes. Overall findings based on a novel dataset indicate that legislative committees introduce more substantial amendments to government bills when they consult with sponsoring ministers and stakeholders. These findings suggest that the formal capabilities of legislative committees provide opportunities for legislators to influence government legislation even in adverse political contexts, as these mechanisms limit the government's ability to impose its legislative agenda unilaterally. It contributes to the debates on strengthening legislatures for effective government scrutiny.Article Citation - WoS: 6Citation - Scopus: 6On Social Integration Process With Refugees in Turkey: How Can Ngos Be More Effective?(Routledge Journals, Taylor & Francis Ltd, 2021) Seyidov, Ilgar; Seyidov, Ilgar; Seyidov, Ilgar; Public Relations and Advertising; Public Relations and AdvertisingAccording to the statistics of UN, more than 6.5 million people have been internally displaced since the Syrian crisis in 2011. There are also more than 13.1 million people in need in Syria. Approximately 5.6 million people have become refugees in various countries, mostly in Turkey, Lebanon, and Jordan. Among the countries welcoming displaced Syrians, Turkey is at the top, hosting over 3.5 million refugees. Governmental agencies, and I/NGOs (non-governmental organisations) are working together to meet the needs of Syrian refugees in Turkey. In this context, the social integration of refugees into the host community has become prominent. This study is focused on the positive and negative aspects of this social integration process in Turkey. By positive aspect, the positive contributions were meant, on the other hand, negative aspects are used to illustrate the shortcomings of the social integration process. In the research, in-depth semi-structured interviews were conducted with the supervisors of refugee- oriented programmes implemented by NGOs. The focus is on the evaluation of social integration and the role of civil society organisations in this process. The main purpose is to discuss the current situation and to elicit different perspectives on the development of social integration process.Article Citation - WoS: 1Citation - Scopus: 2Diffusion of Digital Authoritarianism? Censorship, Surveillance and Beyond in Türkiye(Routledge Journals, Taylor & Francis Ltd, 2024) Aslan, Mesut; Yilmaz, GozdeThe expansion of authoritarianism in the world has led to increased debates about digital authoritarianism as well as the diffusion of authoritarianism. However, these two topics have not been addressed together despite the digital world being a strong candidate for diffusion. This study explores whether digital authoritarian diffusion occurs from China and/or Russia to T & uuml;rkiye by examining the models of China and Russia and unpacking the Turkish model of digital authoritarianism. We argue that the Turkish model is inspired by the Chinese and Russian models, but without the active promotion of those models by authoritarian centres. Instead, analyses of the legal framework, technology and surveillance practices suggest that there is an indirect and passive as well as internally driven process at work.Article Citation - WoS: 25Citation - Scopus: 27Inflation Uncertainty and Interest Rates: Is the Fisher Relation Universal?(Routledge Journals, Taylor & Francis Ltd, 2007) Berument, Hakan; Ceylan, Nildag Basak; Olgun, HasanThis paper tests the validity of the Fisher hypothesis, which establishes a positive relation between interest rates and expected inflation, for the G7 countries and 45 developing economies. For this purpose, we estimate a version of the GARCH specification of the hypothesis for all countries included in the sample. We also test the augmented Fisher relation by including the inflation uncertainty in the equation. The simple Fisher relation holds in all G7 countries but in only 23 developing countries. There is a positive and statistically significant relationship between interest rates and inflation uncertainty for six of the G7 and 18 of the developing countries and this relationship is negative for seven developing countries.Article Citation - WoS: 11Citation - Scopus: 12Secondary-Task Effects on Learning With Multimedia: an Investigation Through Eye-Movement Analysis(Routledge Journals, Taylor & Francis Ltd, 2017) Acarturk, Cengiz; Ozcelik, ErolThis study investigates secondary-task interference on eye movements through learning with multimedia. We focus on the relationship between the influence of the secondary task on the eye movements of learners, and the learning outcomes as measured by retention, matching, and transfer. Half of the participants performed a spatial tapping task while studying the instructional materials, whereas the other half studied the materials, without spatial tapping. The results revealed suboptimal learning outcomes under the secondary task, which was accompanied by fewer transitions of gaze between the text and the figure. We propose that the suboptimal learning outcomes might be due to the disrupted processing of pictures, and possibly due to the less efficient integration, of the information gathered from the text and figures.Article Effects of a Parent-Implemented Shared Book Reading Program on Turkish Children: Low-SES Families(Routledge Journals, Taylor & Francis Ltd, 2025) Islek, Sinem; Turan, FigenThe effects of language and literacy skills developed during early childhood on subsequent literacy achievement are well-known. As children's first teachers are their parents, supporting these skills in the home environment is necessary. This study investigated the effect of the Shared Book Reading (SBR) program based on print awareness on children's language and early literacy skills in children from low socioeconomic households. Thirty - four mother-child dyads were randomly assigned to an intervention or a control group. Mothers in the intervention group attended training sessions on using shared book reading strategies through picture books for 12 weeks. The analyses revealed positive effects of the parent-implemented shared book reading program on early literacy skills and the early literacy environment. These findings highlight the potential positive impact of a parent-implemented shared book-reading program on the early literacy experiences and skills of children from low socioeconomic households. The findings show that the mothers in the intervention group were able to transform their children's home education environment into one that valued and contributed to the children's early literacy experiences and had a positive effect on early literacy skills.Article Citation - WoS: 1Citation - Scopus: 1Capital Structure Decisions Under Uncertainty: the Case of Turkey(Routledge Journals, Taylor & Francis Ltd, 2024) Dincergok, Burcu; Eruygur, Hakki OzanThis study analyzes the relationship between uncertainty and target leverage ratios on manufacturing firms listed in Borsa Istanbul between 2005-2020. To handle possible instrument proliferation and weak instrument problems of System GMM methodology of dynamic panel data, we mainly adopted the Quasi Maximum Likelihood estimator and found that uncertainty has a significant negative marginal effect on target leverage ratios. Our analysis revealed that firms with high levels of uncertainty have lower average leverage ratios than other firms. ANCOVA analysis results show that uncertainty is in the first three time-varying variables which have the highest impact on target leverage variation.Article Citation - WoS: 19Citation - Scopus: 17Testing Ppp Hypothesis Under Temporary Structural Breaks and Asymmetric Dynamic Adjustments(Routledge Journals, Taylor & Francis Ltd, 2020) Omay, Tolga; Shahbaz, Muhammed; Hasanov, MubarizWe test the empirical validity of the PPP proposition under temporary structural breaks and dynamic nonlinear adjustments. Although several testing procedures have recently been proposed in the existing literature to investigate stochastic properties of the series under gradual breaks and nonlinear adjustments, none of these tests are compatible with the PPP proposition. Therefore, we propose new testing procedures that restrict the break to be temporary while simultaneously allowing for asymmetric dynamic nonlinear adjustment towards equilibrium. Using these newly proposed tests, we test stationarity of real exchange rate of 24 OECD countries vis-a-vis USA, and find support in favour of PPP proposition in majority of the countries.
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