| Autor: |
Dewi, Firda Chynthia, Parlan, Parlan, Suryadharma, Ida Bagus |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 2020, Vol. 2215 Issue 1, p020004-1-020004-6, 6p, 1 Black and White Photograph, 6 Charts |
| Abstrakt: |
This paper highlights the development and validation of a four-tier diagnostic test to identify students’ misconceptions in chemical equilibrium (FTDTCE). Diagnostic test four-tier for chemical equilibrium have never been developed. This study consisted of five stages and adopted the procedure used for the four-tier instrument developed by Habiddin & Page (2019) and involves: (1) testing and interviewing, (2) defining the conceptions of students who were wrong (not scientific), (3) developing prototype of FTDTCE, (4) validating prototype FTDTCE, (5) developing the final FTDTCE. The diagnostic test instrument consisted of 25 questions with the level of confidence to the questions and reasons. The results of content and construct validity by experts were 96% and 97% respectively with very valid/feasible criteria. The results of the validity of the items showed 25 valid items in the first and reason tier, 1 item and 4 items in the first and the second tiers have been revised. The discrimination index of the items showed 11 items were fair and 14 items were good. The results of the difficulty level showed 9 items were difficult, 15 items were moderate, and 1 item was easy question. The reliability of the test was very high at 0.848 and the reliability of the confidence level is very high at 0.834. The product of a four-tier diagnostic test that was valid, reliable, and feasible to identify students’ misconceptions in chemical equilibrium. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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