Authors: Gail R. Ryser Ph.D., Kathleen McConnell Ph.D.
Product Code: 818
ISBN: 818
Availability: In stock.


Scales for Identifying Gifted Students (SIGS) offers the most comprehensive observational instrument available for identifying gifted students ages 5–18. Used as part of a comprehensive process for identifying gifted children, SIGS offers schools an instrument with extensive statistical and research support. This standardized, norm-referenced instrument is completed by teachers or parents and provides an effective method for identifying gifted children.

SIGS consists of two rating scales that can be used together or independently (a Home Rating Scale and a School Rating Scale). Additionally a Spanish-language version of the Home Rating Scale is included free with the kit. The SIGS is composed of seven scales: (1) general intellectual ability; (2) language arts; (3) mathematics; (4) science; (5) social studies; (6) creativity; and (7) leadership.

Each scale contains 12 items that are rated using a Likert-type scale. The items were chosen from a comprehensive body of research concerning the characteristics of gifted students.

SIGS was normed on a total sample of more than 3,600 students (1,721 normal students and 1,884 gifted students). Norms are provided for both samples. As such, SIGS offers schools an observational scale with the largest, most diverse norming sample and statistical support of any gifted identification observational instrument available.

The potential bias of every item on the test on the basis of gender and ethnic group was studied. Only nonbiased items are included in the SIGS. Thus, schools using the SIGS can be assured that the instrument has no gender or ethnic group bias.

Average internal consistency reliability exceeds .90 for all scales for both the normal and gifted norming samples. Validity of the instrument has been established with its correlations to the WISC-III, Otis Lennon School Ability Index, and the Torrance Tests of Creative Thinking-Figural.

Because the SIGS offers the most advanced and comprehensive statistical support of any observational identification instrument in the field, it should be a part of every school's comprehensive approach to identifying gifted children.

Ages: 5–18

Note: This item is only available for sale to educational institutions.

Online Version Information



This online pack includes 100 student "seats." Student seats may be purchased and added to an account at anytime in batches of 100 seats. A single student may be evaluated on any number of scales. A school administrator may create as many schools, examiners, and teachers as needed. Only student seats are limited by the number of seats purchased.

This online edition of SIGS allows teachers to complete the SIGS using any desktop web browser. Individual and group student reports can be exported by gifted program administrators for use in spreadsheets or electronic student data systems or for communicating results with parents.

Although the online version includes complete instructions for using the online SIGS, the comprehensive SIGS Examiner's Manual is sold separately.

Note: Within two business days of making your purchase, you will receive an e-mail confirming your account information and allocating the purchased student seats to your account. Please allow us up to two business days to make the necessary account verification and student seat allocations. If you have questions, please contact SIGS support at support@prufrock.com

3-Minute Video Overview

We've created a quick, 3-minute overview of the online SIGS to introduce some of the product's key features. In the video, we highlight the easy, time-saving tools available in the online version. Please take a moment to view this video overview of the online SIGS.

Download sample chapters from the SIGS Examiner's Manual and samples of the SIGS forms.

Each PDF file below is approximately 100k in size and will take a few seconds to download. These files can be viewed using Adobe Acrobat Reader. If you do not already have a copy of Adobe Acrobat Reader installed on your computer, you may download the software free at http://www.adobe.com/products/acrobat/readstep2.html.

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