It is a widely held belief that anchor tests should be miniature versions (i.e., minitests), with respect to content and statistical characteristics of the tests being equated. This paper examines the foundations for this belief. It examines the requirement of statistical representativeness of anchor tests that are content representative. The…

This study explored whether the addition of the items with more advanced math content to the SAT Reasoning Test™ (SAT®) would impact test-taker performance. Two sets of SAT math equating sections were modified to form four subforms each. Different numbers of items with advanced content, taken from the SAT II: Mathematics Level IC Test (Math IC),…

The relationship of differential item functioning (DIF) to item difficulty on the Scholastic Aptitude Test (SAT) was examined, based on data from nine recent administrations of the test from June 1986 through December 1987. This pool of information includes item statistics on 765 verbal and 540 mathematical items computed for subgroups of White,…