This research applied qualitative research to elicit and describe students' metacognitive skills in physics problem solving based on their epistemological beliefs. Subjects of this research were the tenth-grade students of a high school in Palu. The subjects were in three categories, i.e: sophisticated, moderate and naïve. The instruments of this research consisted of epistemological beliefs questionnaire (EBAPS), test for physics problem solving, and interview protocol. The data of the problem solving and metacognition was collected through thinking-aloud activity. The data were analyzed by the descriptive method. Based on the data analysis, it could be concluded that students with sophisticated epistemological beliefs showed all main categories and elements of metacognition skills. All elements were not shown by the other two student categories.
This study aims to longitudinally describe the metacognitive skills and external representation in the context of problem-solving at Chemistry Education, Tadulako University. The qualitative study respondents were selected from a number of first year students for two consecutive semesters. Two respondents were selected based on results of selection using a metacognitive skills assessment questionnaire (MCAI) and we categorized as high and medium. Three problems were resolved by respondents at intervals of one to two weeks in each semester through a one-on-one thinking aloud and it was followed by a semi-structured interview. Data collection was recorded using a video camera. Metacognitive skills and external representation data from the odd and even semesters were deeply analyzed. This analysis technique was carried out by examining the results of problem solving and semi-structured interviews in detail and matching them with the indicators of metacogni-tive skills and external representation used by both respondents. The data analysis results showed that the thinking ability of respondents with high metacognitive skills in problem solving, experienced developments over time along with the development of their cognitive regulation and external representation. On the other hand, respondents with intermediate metacognitive skills during problem solving, were relatively the same for two consecutive semesters. Therefore, teachers need to consider the use of learning strategies by taking into account the number of students who have dominant characteristics in classroom learning, in terms of metacog-nitive skills and external representation.
This research was aimed to describe the causal reasoning of students in physics problem-solving. The research subjects were students of Physics Education Study Program of Universitas Tadulako. The research respondents consisted of two students obtained through a selection test of respondents representing the categories of high ability. Data collection through thinking-aloud activity and it was followed by an interview. The thinking-aloud data were analyzed according to Pearl which illustrates how students use students’ causal reasoning in solving the problem. Based on data analysis it can be concluded that causal reasoning has an important role for students when solving the problem. The causal reasoning process conducted by the respondents through the collection of information from the problem; structural equalization of the problem elements with elements of events known by the respondents; reviewed information for the provision of intervention or manipulation in the appropriate decision-making; and made a conclusion by considering a paradox and conflicting of the data on the problem.
Mozita is an application used by midwives to record and report the toddler nutritional status in the local health center (Puskesmas). In addition to nutritional status information, Mozita can present information that is used by heads of puskesmas, district health offices and provincial health offices for monitoring and decision making in terms of health policy based on nutritional status. To be able to increase application usage, feedback from users is needed. With USE Questionnaire-based usability testing covering aspects of Usefulness, Satisfaction and Easy of Use. Usability testing is focused on the interaction part of the user interface (midwife), as the main source of data collection. This study used 15 midwife respondents who were randomly drawn from puskesmas in the city area of Semarang. The technique used to measure usability testing is to provide an explanation and guidelines for using the Mozita application before respondents fill in the questionnaire using a Likert scale from 1 to 7. The questionnaire used is equipped with in-depth interviews for question items whose Likert scale value is less than equal to 3 The indepth interview aims to provide a focus on improving the Mozita application interface to suit user needs. The results of usability testing that has been done on the Mozita application shows that the value of the Usefulness component is 84.52%, Easy of Use is 83.53%, Easy of Learning is 80.95%, and Satisfaction is 85.03%. Based on the value of each component measured shows that the Mozita application has a high usability value that is equal to 83.52%, and makes it easy for users to carry out work more efficiently. Some user feedback related to satisfaction aspects, especially in the Mozita application layout section is still simple needs to be done for a better layout design.
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