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This finding strengthens the conclusion that resistant misconceptions potentially tend to cause students' conceptual reasoning difficulties and are difficult to diagnose in conventional ways.
![soal un hidrolisis garam soal un hidrolisis garam](https://2.bp.blogspot.com/-rt2G3AVo7Bk/W96aBjHkJNI/AAAAAAAAJMM/R1bUJmDFf4EcSZMK7d0IEPFqvScBunzLgCLcBGAs/w1200-h630-p-k-no-nu/P2%2BNo%2B11.jpg)
The item misconceptions pattern was found repeatedly in similar items. In particular items, changes in response patterns were found the misconception curve showed a declining trend and disappeared along with the increase of comprehension along the spectrum of students’ abilities.
![soal un hidrolisis garam soal un hidrolisis garam](https://1.bp.blogspot.com/-17klP4KO_TY/WRK9jWih_VI/AAAAAAAAAbU/COvzK2EQ_3ENl2exM-pDa_CcQ-8Jvj2OACLcB/s1600/hidrolisis%2Bgaram%2Bbasa.png)
Further analysis found that the students’ reasoning difficulty levels of the concept of saline solutions were varied the calculation of saline solution’s pH level is the most difficult construct to reason. The findings show empirical evidence of the reliability and validity of the measurement. These 30 written test items were completed by 849 students in Gorontalo, Indonesia.
![soal un hidrolisis garam soal un hidrolisis garam](https://soalkimia.com/wp-content/uploads/2020/01/Hidrolisis-asam-lemah-dan-basa-kuat.jpg)
Data were collected through the development of 30 distractor-based diagnostic test items, measuring ten levels of conceptual reasoning ability in three types of salt hydrolysis compounds: 〖〖Na〗_5 P〗_3 O_10, NaOCl and 〖〖(NH〗_4)〗_2 〖SO〗_4. This study evaluates the difficulties in concept reasoning, changes in response patterns, and item misconception hydrolysis patterns using Rasch modeling.
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