Introduction: advances in assessment and the potential for increasing the number of Hispanics in higher education by Gary D. Keller. Cultural and linguistic influences on Latino testing by José P. Mestre and James M. Royer. Diagnostic testing of reasoning skills by Richard P. Durán. Assessing heuristic knowledge to enhance college students' success by Raymond V. Padilla. Time as a factor in the cognitive test performance of Latino college students by María Magdalena Llabre. Factors related to differential item functioning for Hispanic examinees on the Scholastic Aptitude Test by Alice P. Schmitt and Neil J. Dorans. Eduating the scores of the College Board Prueba de Aptitud Académica and the College Board Scholastic Aptitude Test by William H. Angoff and Linda L. Cook.