CD Tesis
Pengembangan Tes Diagnostik Berformat Four Tier Test Untuk Mengukur Miskonsepsi Calon Guru Biologi Pada Konsep Genetika
The purpose of this study was to develop the diagnostic test in four tier test
form that can be used to measure biology preservice teacher misconceptions on
genetic concepts. The research method is Research and Development (R&D) using
the ADDIE model consisting of the Analysis, Design, Development, Implementation,
and Evaluation stages. Four tier diagnostic test was developed consisting of four
levels, the first level in the form of multiple choice questions with four distractors and
one answer key. The second level is the level of students confidence in choosing
answers. The third level is students reason on questions answer, consisting of reasons
that have been provided and one open reason. The fourth level is the students
confidence in choosing reasons. The number questions tested was 20 items consisting
14 question indicators. The validity of four tier diagnostic test was carried out by the
expert validator who were assessed material, construction, and language aspects.
The practicality test was carried out by 30 students of the biology education program
at Riau University (UNRI), and the effectiveness test was carried out on 91 students
of the biology education program at UNRI and 63 students of the biology education
program at Riau Islamic University (UIR) who had completed genetics course.
The results showed that the value of four tier diagnostic test on genetic
concepts validity in material aspect was 3,3 with a very valid category, the
construction aspect was 3,1 valid categories, and the language aspect was 3,4 with a
very valid category. The average value is 3,3 with a very valid category. The
practical value of using a diagnostic test in the form of four tier test in the process
aspect of the use was 3,58 very practical categories, content aspect was 3,20
practical categories, and feedback aspect was 2,61 very practical categories. The
average value is 3,53 with a very practical category. The results of the diagnostic test
showed that 11,2% students UNRI and UIR biology preservice teachers who
understood the genetics concepts, 26,1% did not understand the concept, and 62,1%
experienced misconceptions. This shows that the diagnostic test in four tier test form
that has been developed is very valid, very practical and effectively to measure
misconception in genetic concepts.
Key words: misconception, diagnostic test, four tier test, and genetic concepts
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