Do you need to do the JSAIS or SSAIS-R in particular? I ask because I notice that the norms are approaching 30 years old on the SSAIS-R. For a reasonably high SES, environmentally-enriched child, the trade-off between local norms (SSAIS-R) and current norms becomes a bit foggier (WISC-IV/V). It also suggests that ceiling effects are more likely, as the test is likely to read high by about 6-8 points for an average-ability child, and possibly even more than that for a high-ability child. (Compared to scores derived from a hypothetical recent norm group.)
