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Direct linkAdadan, Emine; Savasci, Funda – International Journal of Science Education, 2012
This study focused on the development of a two-tier multiple-choice diagnostic instrument, which was designed and then progressively modified, and implemented to assess students' understanding of solution chemistry concepts. The results of the study are derived from the responses of 756 Grade 11 students (age 16-17) from 14 different high schools…
Descriptors: Chemistry, Grade 11, Scientific Concepts, Comprehension
Adadan, Emine; Irving, Karen E.; Trundle, Kathy C. – International Journal of Science Education, 2009
This quasi-experimental study examined 42 high school introductory chemistry students' conceptual understandings of the particulate nature of matter (PNM) before and immediately after instruction. Two groups of students, who were taught by the same teacher, received one of two possible instructional interventions: Reform-Based Teaching (RBT) or…
Descriptors: Secondary School Science, Chemistry, High School Students, Comprehension
