Why are there no Australian norms for the WASI-II but there are for the WASI?

Why are there no Australian norms for the WASI-II but there are for the WASI?

• A. There were very little differences between USA and AUS norms
• B. There were large differences between USA and AUS norms
• C. Australian norms were not collected for WASI-II
• D. There is no difference between USA and AUS norms

Answer: (A)

Norms show how a representative group would typically score on a test. If two populations perform very similarly, there’s little need to create separate normative data for each group. For the WASI, Australian norms were published because earlier data suggested some differences from US norms that justified local norms. When WASI-II was developed, analyses indicated only small differences between Australian and US normative samples, so publishers did not release distinct Australian norms. As a result, US norms are generally used for Australian testers, with the understanding that any small cross-national differences could have a modest influence in interpretation.

Norms show how a representative group would typically score on a test. If two populations perform very similarly, there’s little need to create separate normative data for each group. For the WASI, Australian norms were published because earlier data suggested some differences from US norms that justified local norms. When WASI-II was developed, analyses indicated only small differences between Australian and US normative samples, so publishers did not release distinct Australian norms. As a result, US norms are generally used for Australian testers, with the understanding that any small cross-national differences could have a modest influence in interpretation.