Miscellaneous

How is BAS co-normed with YARC?

While all children took the core scales, 50% of the children above 5 years of age completed the YARC, and the rest completed the BAS3 Achievement Scales. More details can be found in the Technical Manual.

Will teachers be able to use BAS3?

No. GL Assessment will only sell BAS3 to registered test users who are qualified psychologists. Sales are made on the understanding that only qualified individuals will use the instrument.

The only exception will be original form of Word Reading, now called Word Reading B, which will continue to be available to significant research projects. This may involve teachers and others with suitable training administering it under the supervision of qualified users.

How long should be left between repeat assessments?

There is no straightforward answer to this question, as it depends upon the age and ability of the child, together with the scales being used and the context of testing. However, if asked, we normally recommend a period of six months as a safe minimum, although it may be possible to obtain valid measures of change over shorter periods, say three months, provided that the psychologist is cautious in identifying significant changes, e.g. employs 95% confidence intervals.

Have you considered standardising for males and females separately?

No. We feel it is far more appropriate and beneficial to compare children against joint normative data, rather than having separate norms. This is also more in keeping with current thinking about equality.

What is the current relationship between BAS and DAS?

DAS2 is an amalgamation of all the development and research generated by previous versions of BAS and DAS1. Likewise, BAS3 is a development of DAS2 and BAS2 and has incorporated some small elements of DAS2 which we believe make it a better test for the UK and international market. For instance, the new lower level of Matrices comes from DAS2 and the GCA structure also follows that of DAS2. Further information can be found in the manuals.

Can psychologists scan the BAS3 Record Booklets once completed in order to store the data electronically?

Any request to scan and electronically store completed Record Booklets must be approved in writing by the publisher (please send all requests to bas3@gl-assessment.co.uk). Only completed Record Booklets can be stored electronically; it is a breach of copyright to reproduce, duplicate or store any non-completed Record Booklets. Furthermore, it is the responsibility of the individual psychologist / psychology service to store all completed Record Booklets securely (electronically or otherwise) and in conformation with their organisation’s data protection policies