Examining the Content Validity of Android-Based Augmented Reality Media for Chemical Bonding using Rasch Model

Abstract

21st-century learning presents chemistry teachers with new challenges in teaching abstract chemistry concepts with various technologies that continue to develop. One of the media that can visualize abstract chemical concepts is Augmented Reality (AR). AR media developed in chemistry learning needs to be valid so that it can be used properly. Therefore, this study aims to examine the validity of the Android-based AR media developed. Four education practitioners carried out the validation as experts, and 13 students participated as respondents. The instrument used is a questionnaire with a Likert scale. The data obtained were analyzed quantitatively with the Rasch model using the facet software. The results of the analysis show that the Exact Agreements are 41.10%, and the Expected Agreements are 42.20%. The most challenging aspect to achieve is media design, while profit is the most easily agreed-upon aspect. Based on this assessment, in the development of augmented reality media, it is necessary to pay attention to display aspects and 3D objects suitable for viewing a material so that it is easier for users to understand the material.

Investigating rater–student interaction, gender bias, and major bias in the assessment of research seminar presentation

“…Interestingly, these interactions resulted from rater and student interaction with linguistics and psychology majors, as previously mentioned in the results for academic major interaction. Academic majors as a biased source were also noted across the assessment contexts when assessing items and students majoring in science education [ 42 , 61 ]. [ 1 ] also found that interaction between different academic majors could influence the quality of rater assessment in evaluating examinee performance.…”

Cultural Introduction Application in Lembata Regency, NTT Using Android-Based Augmented Reality

“…Ketiga komponen tersebuk akan bekerja secara sinergis untuk menjamin agar aplikasi yang ada bisa berjalan dengan baik. Untuk dapat mengoptimalkan kinerja aplikasi, menjaga keamanan, memastikan compatibility aplikasi di berbagai platform, dan memanfaatkan pustaka Java, maka developer perlu memahami JRE dengan baik [18].…”

Development of Astronomy Learning Modules on the Subject of the Solar System Integrated with Augmented Reality Videos

“…Validity is a method that can be used to determine the feasibility of the media being developed. In this study, content validity was conducted to determine the feasibility of the content and media presented in the developed media (Yamtinah et al, 2021). Data on the validity and applicability of the model and its tools were analyzed using descriptive statistical analysis techniques by calculating percentages using the following equation: The product in the form of a learning activity module on integrated augmented reality astronomy material is declared valid and feasible from a technical point of view if it is at a score of ≥ 75.00 or meets the minimum criteria of good (Sari et al, 2021).…”