IIRC, some tests are designed to have a standard deviation of 24 rather than 15; perhaps the test you took 15 years ago was one of those, so that a 148 on that scale would correspond to a 130 on this one.
IIRC, some tests are designed to have a standard deviation of 24 rather than 15; perhaps the test you took 15 years ago was one of those, so that a 148 on that scale would correspond to a 130 on this one.