"Scientific argumentation," defined as the ability to develop and analyze scientific claims, support claims with evidence from investigations of the natural world, and explain and evaluate the reasoning that connects the evidence to the claim, is a critical component of current science standards and is consistent with "Common Core…

Investigated the effect on student performance of changes in question structure and sequence on a GCE 0-level multiple-choice chemistry test. One finding noted is that there was virtually no change in test reliability on reducing the number of options (from five to per test item). (JN)

Investigated the validity of the assumption that arranging items in objective tests in order of increasing difficulty increases student motivation and produces more reliable tests. Results indicate that test reliability was largely independent of item sequence. (Author/JN)

The purpose of this project was to construct a valid and reliable noncurriculum specific measure of integrated science process skills intended for use with middle school students. The major efforts in test development were focused on the refinements and modifications of the set of objectives and test items assessed by the existing Middle Grades…