Lessons in validity and fair test increase scores

Using science experiments as a method of preparing for state science assessments enhances student understanding of the terms “validity” and “fair test.” Once students develop an understandin... See More

Using science experiments as a method of preparing for state science assessments enhances student understanding of the terms “validity” and “fair test.” Once students develop an understanding of these terms, they are asked to analyze released test questions for validity and to explain their thinking. The authors found the exercise increased discussion among students, deepened student understanding and raised standardized test scores. This is a great extension of the scientific process and will assist students in analyzing and understanding the flaws of experiments that they did not actually conduct. This heightened awareness will no doubt pay off with improved experimental designs of their own.

Process and standardized testing

I see the same phenomenon with high school students preparing to write college entrance tests. To be sure, the students at that level also lack the process skills to be able to interpret a w... See More

I see the same phenomenon with high school students preparing to write college entrance tests. To be sure, the students at that level also lack the process skills to be able to interpret a written description of an investigation. For many, the science test is probably the most difficult part of the ACT test. When working with them, I focus on the the whole concept of argument and substantiation - the logic is a big part. The structure provided in the article is a great start for younger students - and would provide high school students a much better preparation for college, as well as a better foundation in logical analysis.