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    Analysing perceptions towards electric cars using text mining and sentiment analysis: A case study of the newly introduced TOGG in Turkey
    (Henry Stewart Publications, 2022) Penpece Demirer, Dilek; Büyükeke, Ahmet
    The electric car market is growing steadily around the world and, accordingly, has become an attractive research area. It is important to understand the consumer perspective on newly introduced electric cars, such as those of Turkey’s Automobile Joint Venture Group Inc. (TOGG). Thus, the purpose of this study is to provide a better understanding of consumers’ perceptions related to the newly introduced TOGG, which may create a competitive advantage. Social media is an abundant source of textual data that allows for very reliable analysis and understanding of consumer opinions. In this study, Twitter comments on TOGG were collected and studied. Text mining, sentiment analysis and topic model analysis were then conducted. The results show that TOGG is a popular product with the public: there are many more positive Twitter comments related to TOGG than negative ones. The topics identified in social media are price expectancy, production facility, design and features. The most frequent topic for both positive and negative comments is price expectancy. © Henry Stewart Publications 2054-7544 (2022).
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    Assessing the digital competencies and transformational leadership of school administrators: the case of Adana
    (Frontiers Media SA, 2026) Ersoy, Abdurrahman; Penpece Demirer, Dilek
    Introduction In the context of the rapid digitalization of education, developing and sustaining the digital competencies of school administrators has become a crucial factor.Objective The study aims to examine the digital competencies and transformational leadership of school administrators. This study examined whether school administrators' digital competency levels differed by gender and age and explored the relationship between their transformational leadership characteristics and digital competencies.Methodology A questionnaire consisting of three sections was employed in the study. The study sample consisted of 395 school administrators working in public schools under the Ministry of National Education in Adana, Turkey, during the 2022-2023 academic year.Results and conclusion The study revealed that while school administrators' digital competency levels did not differ significantly by gender, they varied significantly across age groups. A positively moderate significant relationship was identified between administrators' levels of transformational leadership and digital competencies. This study contributes to the growing body of literature on digital competencies and provides valuable insights for policymakers and professional development initiatives.