New admission tests for higher education have been proposed in the SIES project. This article claims that the new tests could cause serious problems: constraints on educational freedom in secondary school, potentially greater inequality in university entrance, a degrading of secondary education, and study incentives only for the few. The authors claim the objectives being pursued through the SIES tests would be better achieved using other instruments. Projects on the scale of the SIES should be based on a careful evaluation of the various alternatives. The current system for admission into higher education (combining an academic aptitude test known as the PAA, with specific subject tests and secondary school marks) is used in many other countries. This system may have defects that require correction or even warrant replacement, but the SIES project does not offer an empirical support for the design of the new tests, nor does it contain a satisfactory analysis of why the academic aptitude test needs to be replaced.