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Çil, Emine – Applied Measurement in Education, 2015
Taking a test generally improves the retention of the material tested. This is a phenomenon commonly referred to as testing effect. The present research investigated whether two-tier diagnostic tests promoted student teachers' conceptual understanding of variables in conducting scientific experiments, which is a scientific process skill. In this…
Descriptors: Diagnostic Tests, Science Experiments, Comprehension, Science Process Skills
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Ozmen, Haluk; Demircioglu, Gokhan; Coll, Richard K. – International Journal of Science and Mathematics Education, 2009
The research reported here consists of the introduction of an intervention based on a series of laboratory activities combined with concept mapping. The purpose of this intervention was to enhance student understanding of acid-base chemistry for tenth grade students' from two classes in a Turkish high school. An additional aim was to enhance…
Descriptors: Concept Mapping, High School Students, Intervention, Pretests Posttests