The tests reported herein are the product of a major phase in a research and development project with the teaching and learning of concepts basic to assessing arguments in everyday life. Wisconsin Tests of Testimony and Reasoning Assessment (WISTTRA) is composed of seven tests. The first three have to do with student critical skills related to the assessment of testimony. The final four treat student critical skills related to the assessment of arguments developed through reasoning. The tests are presented with instructions for administration. Answer keys and time requirements are also given. (Author)