Analysis of Student Mental Model Using Four-Tier Diagnostic Test On Electrolyte and Non-Electrolyte Hayuni Retno Widarti and Nafi^ Wahyu Hayati
Universitas Negeri Malang
Abstract
This study aims to determine students^ mental models in transforming the concept of electrolyte and non-electrolyte solutions. The research method used a qualitative descriptive research approach with a sample of 72 students of SMA Negeri 10 Malang. Data collection uses a four-tier diagnostic test instrument. The results showed that the percentage of students^ mental models were 8.61% of students answered scientifically (scientific), 30% of students answered partially correct (synthetic), and 61.3% of students answered not scientifically or just guessing ( initials). The mental model that students have is still limited to low basic knowledge about electrolyte and non-electrolyte solution materials. The causes of the formation of students^ mental models are influenced by internal and external factors. Internal factors come from students, namely: (1) students^ inability to understand the basic nature, (2) wrong reasoning, and (3) students^ incomplete understanding of the phenomena studied. External factors come from outside students such as: (1) learning is still not effective, (2) lack of media utilization, and (3) not being able to invite students to solve problems related to everyday life
Keywords: Student mental model, electrolyte and non-electrolyte solutions, test four-tier diagnostic
