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a.    Results of the reliability analysis 

Author:Ynjika Good Luck

Post-performance test contains seven questions that have a slightly different with the questions in the pre- performance test. Performance test used to measure student performance after using Geogebra contents. This test includes control groups and experimental groups. The test was reliable at r =0.609-0.863 (p <0.05) and is described in detail in the following table.

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