In the last few years, numerous reports have pointed to the overall lower achievement of American students in science, particularly in the physical sciences, when compared to American students of the last two decades and to students from other countries. While there is reason to believe that American elementary school children are taught less…

Eighth grade teachers in three local school districts helped customize two standardized norm-referenced tests for ninth graders to investigate effects of deleting some items and adding locally constructed items. Results indicate that percentile ranks for the customized tests could be very different from those for the complete test. (SLD)

The purpose of this technical report is to describe the Tests of General Ability and Tests of Reading of the Inter-American Series, to give a brief account of their construction, and to present related statistical data. Norms and suggestions on the use and interpretation of the tests are published separately. The Inter-American Series discussed in…