Answer:
Criterion Validity
Explanation:According to my research on Psychometrics, Dominic is questioning the Criterion Validity of the Graduate Record Examination (GRE). This is defined as "the extent to which a measure is related to an outcome". In this situation since Dominic is comparing the GRE to both the ACT and SAT and stating that it is the same test then we can say that Criterion Validity is the correct answer for the blank space.