Yasri, Pratchayapong
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The Comparison of Chunking Methods to Enhance the Cognitive Capacity of Short-term Memory to Retain Textual Information among High School Students Suppawittaya, Piwat; Yasri, Pratchayapong
International Journal of Research in STEM Education Vol. 3 No. 1 (2021): May Issue
Publisher : Universitas Terbuka

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Abstract

Our short-term memory has a limited capacity of taking in information and retaining it the memory storage. However, this can be enhanced by various memory techniques especially dividing the information into smaller chunks. To investigate this memory enhancement strategy, this study compared the effectiveness of three chunking methods, namely One-Chunk, Two-Chunk, and Three-Chunk to enhance the capacity to retain information in the forms of letters and numbers in the short-term storage. Participants in this study were 50 high school students who took part in an experimental design of online short-term memory assessment. The results revealed that the ability to remember 10 distinct alphabets and 10 distinct digits statistically varied, depending on how the information was chunked. To be more precise, the student participants could memorize the information when divided into 2 or 3 chunks more effectively than one full set of the information (1 chunk) as the mean scores gained in the two chunking methods were statistically greater than that of the One-Chunk delivered information. However, the findings only relied on single types of information so that further research could be done to explore this with more complicated information. Educational implications can be drawn from this present study that in order to assist students to memorize and retain learning materials more effectively, it is essential to help classify them into 2-3 groups of information. This could be done through the use of tree thinking, binary thinking, and computational thinking.
The Comparison of Students' Perceived Levels of Self-Efficacy in Live, Online and Live Online Courses Wangwongwiroj, Tarosh; Yasri, Pratchayapong
International Journal of Research in STEM Education Vol. 3 No. 1 (2021): May Issue
Publisher : Universitas Terbuka

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Abstract

Education during COVID-19 pandemic has been greatly disrupted. While live courses where students meet face-to-face in classrooms are physically limited, online courses become more popular where students learn from pre-recorded videos at their own pace. In contrast, live online courses are learning modes where students and teachers meet via webinar tools such as zoom, skype, google meet, webex, teams, to name a few. This study compared students' perceived levels of self-efficacy in these three different settings. Self-efficacy is defined as belief in one'own ability to accomplish a task, which can be influenced by mastery experiences, verbal persuasion, vicarious experiences, and physiological states. An online questionnaire with 12 closed-ended statements based on a 5-Likert scale was developed, representing the four factors in the three modes of learning. A total of 105 voluntary responses were received. Statistical differences in the mean scores were determined by a paired sample t-test. The results at the significance level of 95% showed that the mean score of mastery experiences was the greatest in live courses (4.5), followed by live online (4.4) and online courses (3.3). The same was observed in vicarious experiences where live courses gained the greatest mean (4.5), followed by live online (4.3) and online courses (1.7). The means of verbal persuasion between live (4.5) and live online courses (4.3) did not differ significantly, but the lowest was in online courses (1.6). Interestingly, the reverse trend was found in psychological states in which the greatest was found in online (4.7), followed by live online (4.5) and live courses (3.6). The analysis above was based upon students who had no technical difficulties to access live online courses. However, this may not be applicable to contexts where internet connect is problematic. For educational implications, the findings revealed that live online courses are proven to be the most appropriate mode of learning during the pandemic. In contrast, online courses are associated with lower levels of mastery experiences, vicarious experiences, and verbal persuasion perceived by learners; whereas live courses lowered psychological states.