Religious syncretism correspondence varied: Jupiter makes perhaps a better match for Zeus than the rural huntress Diana does for the feared Artemis. Ares does not quite match Mars. The Romans physically imported the Anatolian goddess Cybele into Rome from her Anatolian cult-center Pessinos in the form of her original aniconic archaic stone idol; they identified her as "Magna Mater" and gave her a matronly, iconic image developed in Hellenistic Pergamum. Likewise, when the Romans encountered Celts and Germanic peoples, they mingled these peoples' gods with their own, creating Sulis Minerva, Apollo Sucellos (Apollo the Good Smiter) and Mars Thingsus (Mars of the
Equating the equating of tests administered to groups with similar abilities; for example, two tests administered to students in the same grade in two consecutive calendar years. Different tests are used to avoid practice effects. In terms of item response theory, equating is just a special case of the more general process of "scaling", applicable when more than one test is used. In practice, though, scaling is often implemented separately for different tests and then the scales subsequently equated. A distinction is often made between two methods of equating; "common person" and "common item" equating. Common person equating involves the administration