The findings come at a time when universities worldwide are under pressure to equip students with 21st-century skills. Beyond mastering subject knowledge, students are expected to think analytically, solve complex problems, and manage their workload independently. However, many institutions still rely on traditional teaching approaches, which often limit opportunities for students to develop critical thinking and self-discipline.
The research addresses this gap by examining how cognitive and non-cognitive factors interact in academic performance. Critical thinking enables students to analyze information, evaluate arguments, and make evidence-based decisions. Meanwhile, hard work reflects persistence, discipline, responsibility, and consistency—traits that are essential for completing assignments on time and to a high standard.
To explore these relationships, the researchers used a quantitative approach with multiple linear regression analysis. The study involved 124 students selected from a population of 347 through purposive sampling. Data were collected using structured questionnaires with Likert scales, ensuring measurable insights into students’ attitudes and behaviors. The instruments were tested for validity and reliability, with high consistency scores across all variables.
The results show that both critical thinking and hard work have a strong and statistically significant impact on students’ ability to complete academic tasks. On average, students demonstrated moderate levels of both skills, yet these were sufficient to produce measurable effects on performance.
Key findings include:
- Critical thinking has a positive and significant influence on task completion, with a t-value of 4.897, indicating strong statistical support.
- Hard work shows an even stronger effect, with a t-value of 7.931, making it the dominant factor.
- When combined, both variables significantly influence academic performance, with an F-value of 149.259.
- The coefficient of determination (R²) is 0.712, meaning 71.2% of students’ task completion ability is explained by these two factors.
The regression model further confirms this relationship, showing that improvements in both critical thinking and hard work lead to better academic outcomes. Notably, hard work contributes more strongly, suggesting that persistence and discipline may play a larger role than analytical ability alone.
“Students who think critically can approach tasks more systematically, while hard work ensures consistency in completing them,” write Liliwin Solagratia Talaan and colleagues from Universitas Nusa Cendana.
These findings reinforce a broader understanding in education: academic success is not determined solely by intellectual ability. Non-cognitive traits such as perseverance, motivation, and work ethic are equally important. Students who are diligent but lack analytical skills may produce incomplete or superficial work. Conversely, highly analytical students who lack discipline may struggle to finish assignments. The most successful students combine both strengths.
The implications of this study are significant for higher education institutions. Universities are encouraged to design learning environments that promote both critical thinking and strong work habits. Teaching strategies such as project-based learning, collaborative discussions, and structured assignments can help students develop these competencies simultaneously.
For educators, the study highlights the importance of moving beyond lecture-based teaching. Encouraging students to question, analyze, and reflect on information can strengthen their critical thinking. At the same time, setting clear expectations, deadlines, and accountability measures can foster a culture of hard work.
Students themselves can also benefit directly from these insights. The research suggests that improving academic performance is not just about being “smart,” but about being consistent, disciplined, and willing to engage deeply with learning materials. In the long term, these skills are also highly valued in the workforce, where problem-solving and resilience are essential.
The study also opens opportunities for further research. Future studies could explore additional factors such as learning motivation, time management, and academic environment, which may also influence students’ ability to complete assignments effectively.
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