GIFTED AND TALENTED
GATES-2: Gifted and Talented Evaluation Scales– Second Edition James E. Gilliam • Olga Jerman AGES: 5 through 18 years The GATES-2 is an innovative, quick approach for identifying students 5 through 18 years of age who are gifted and talented. Based on the most current federal definitions, the GATES-2 has 5 scales: General Intellectual Ability, Academic Skills, Creativity, Leadership, and Artistic Talent. Each scale has 10 items. FEATURES OF THE GATES-2 • All-new normative data were collected in 2013 and 2014. • The demographic characteristics of the sample conform to those of the population reported by the 2013 U.S. Census Bureau. • Twenty-two items from the first edition were retained, and twenty-eight new items were added or revised. • All-new reliability and validity studies were conducted. • The overall look of the test has been improved. RELIABILITY AND VALIDITY • Average coefficient alphas are .97 for General Intellectual Ability; .96 for Academic Skills, Creativity and Leadership; and .98 for Artistic Talent. • Test–retest coefficients range from .88 to .91. • Intraclass correlation coefficients (ICC), used to measure interrater reliability, range from .78 to .93. TESTING TIME: 5 to 10 minutes ADMINISTRATION: Individual
• The median correlation of the GATES-2 with criterion measures is .75. • Diagnostic accuracy studies indicate that the GATES-2 accurately differentiates students who are gifted and talented from those who are typically achieving (sensitivity = .84, specificity = .70, ROC/AUC = .84). COMPLETE GATES-2 KIT INCLUDES: Examiner’s Manual and 50 Summary/Response Forms, all in a sturdy storage box. (©2015) #14445 GATES-2 Complete Kit $172.00 #14446 GATES-2 Examiner’s Manual . . . . . . . . . . . . .............. 105.00 #14447 GATES-2 Summary/Response Forms (50) . . . . . . . . ......... 85.00 This is a restricted product. Go to www.proedinc.com for details on user qualifications and to complete the User Acceptance Form.
TOMAGS-2: Test of Mathematical Abilities for Gifted Students–Second Edition Gail R. Ryser • Susan K. Johnsen AGES: Grades 1 through 6 TESTING TIME: 30 to 60 minutes ADMINISTRATION: Individual or group
The Test of Mathematical Abilities for Gifted Students–Second Edition (TOMAGS-2) is a standardized, norm-referenced test used to identify students in Grades 1 through 6 who are gifted in mathematics. Specifically, the TOMAGS-2 measures students’ ability to use mathematical reasoning and problem solving and is aligned with the current Common Core State Standards for Mathematics. The test can be administered to individuals or to small groups. The TOMAGS-2 now has three levels: the Primary level for Grades 1 and 2, the Intermediate level for Grades 3 and 4, and the new Advanced level for Grades 5 and 6. FEATURES • An all-new demographically representative standardization sample was collected in 2014–2018. • Only one set of norms for general education students (which includes a small percentage of students with exceptionalities and disabilities) is reported. • New studies of the floors, ceilings, and item gradients index scores are included. The results indicate that the test has consistently excellent ceilings, even for the oldest and brightest students who take the test. • New studies of test bias (both differential item functioning and subgroup compari- son studies) indicated that the test possesses little or no bias in regard to gender, race, or ethnicity. • New reliability and validity studies, including diagnostic accuracy analyses, were done, which are considered the most rigorous techniques for establishing a test’s validity. These analyses involve the computation of sensitivity and specificity indexes and the receiver operating characteristic/area under the curve (ROC/AUC) statistic. TECHNICAL AND STATISTICAL CHARACTERISTICS OF THE TOMAGS-2 The TOMAGS-2 was normed on a weighted sample of 1,137 students from 16 states and Washington, DC. Its raw scores can be converted to percentile ranks and index scores. The Examiner’s Manual includes a comprehensive discussion of the test’s theoretical and research-based foundation, item development, standardization, administration and scoring procedures, norms tables, and guidelines for using and interpreting the test’s results.
TOMAGS-2 internal consistency reliability coefficients are .84, .87, and .84 for the Primary, Intermediate, and Advanced levels, respectively. Test–retest reliability coef- ficients are .90, .80, and .79. Validity studies demonstrate the test’s ability to differentiate students who are gifted in mathematical ability from students who are not. Specifically, a TOMAGS-2 Primary index cutoff score of 108 resulted in a sensitivity of .86, a specificity of .81, and a ROC/ AUC of .90 in differentiating mathematically gifted students from non–mathematically gifted students. An Intermediate index cutoff score of 108 produced a sensitivity of .78, a specificity of .82, and a ROC/AUC of .89; and an Advanced index cutoff score of 115 resulted in a sensitivity of .89, a specificity of .76, and a ROC/AUC of .91. COMPLETE TOMAGS-2 KIT INCLUDES: Examiner’s Manual, 75 Student Booklets (25 each for the Primary, Intermediate, and Advanced levels), and 75 Examiner Record Forms (25 for each level), all in a sturdy storage box. (©2020) #14885 TOMAGS-2 Complete Kit $359.00 #14886 TOMAGS-2 Examiner’s Manual . . . . . . . . . . . . ............. 75.00 #14886E TOMAGS-2 Virtual Examiner’s Manual . . . . . . . . . ........... 70.00 #14887 TOMAGS-2 Primary Level Student Booklets (25) . . . . . ....... 60.00 #14888 TOMAGS-2 Intermediate Level Student Booklets (25) . . . . ..... 60.00 #14889 TOMAGS-2 Advanced Level Student Booklets (25) . . . . . ...... 60.00 #14890 TOMAGS-2 Primary Level Examiner Record Forms (25) . . . .... 30.00 #14891 TOMAGS-2 Intermediate Level Examiner Record Forms (25) . .. 30.00 #14892 TOMAGS-2 Advanced Level Examiner Record Forms (25) . . ... 30.00 This is a restricted product. Go to www.proedinc.com for details on user qualifications and to complete the User Acceptance Form.
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2025–2026 ASSESSMENTS | 109
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