General Ability Measure for Adults (G.A.M.A)

The General Ability Measure for Adults (GAMA; Naglieri & Bardos, 1997) is a brief, self-administered, nonverbal measure of intelligence that was normed on a census-based sample of 2,360 adults. The GAMA IQ score is organized with a mean of 100 and SD= 15.  It provides an estimate of an individual's general intellectual ability, can be administered in a variety of settings and may be especially useful in situations that require an assessment of general ability using nonverbal means.

The GAMA is designed to be accessible to a wide variety of people with diverse cultural, language, and educational backgrounds and is most appropriate when: a quick estimate of general cognitive ability is needed; an individual speaks English as a second language or reads at a low level; for neuropsychological and forensic evaluations; in counseling and psychotherapy settings to help choose interventions that match a client's intellectual ability and for large-scale assessment, e.g. with prison or military populations.


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Published Work

PAPERS IN SCIENTIFIC JOURNALS (REFEREED)

Ispas, D, Iliescu, D,  Ilie, A, & Johnson, R.E. (2010). Examining the criterion related validity of the General Ability Measure for Adults: A two sample investigation. International Journal of Selection and Assessment, 18(2), 226-229.
Ryan, E.L., Byrd, D., Mindt, M.R., Rausch, W.J., & Morgello, S. (2008). Understanding the neuropsychological profile Of HIV+ participants with low literacy: Role of the General Ability Measure For Adults (GAMA).  The Clinical neuropsychologist, 22(6), 1018 – 1034.
Davis, A. S., Bardos, A. N., & Woodward, K. M. (2006). Concurrent validity of the General Ability Measure for Adults (GAMA) with sudden-onset neurological impairment. International Journal of Neuroscience. 116, 1215-1221.
Lassiter, K.S., Matthews, T.D., Bell, N.L., & Maher, C.M. (2002). Comparison of the General Ability Measure for Adults and the Kaufman Adolescent and Adult Intelligence Test with college students. Psychology in Schools, 39(5), 497-506.
Lassiter, K.S., Bell, N.L., Hutchinson, M.B., & Matthews, T.D. (2001). College student performance on the General Ability Measure for Adults and the Wechsler Intelligence Scale for Adults‐third edition. Psychology in Schools, 38(1), 1-10.
Matthews, T.D., Lassiter, K., & Habedank, H. (2001). Validity of two brief measures: The General Abilities Measure for Adults and the Shipley Institute of Living Scale. Perceptual and Motor Skills, 92(3), 881-887.
Leverett, P., Matthews, T.D., Lassiter, K.S., Bell, N.L. (2001). Validity comparison of the General Ability Measure for Adults with the Wonderlic Personnel Test. North American Journal of Psychology, 3(1), 173 182.
Lassiter, K.S., Leverett, J.P., Safa, T.A. (2000). The validity of the General Ability Measure for Adults: Comparison with WAIS-R IQ scores in a sample of college students with academic difficulties. Assessment, 7(1), 63-72.
Martin, T.A., Donders, J., & Thompson, E. (2000). Potential of and problems with new measures of psychometric Intelligence after traumatic brain injury. Rehabilitation Psychology, 45(4), 402-408.
Donders, J. (1999).Psychometric intelligence in patients with traumatic brain injury: Utility of a new screening measure. Archives of Physical Medicine and Rehabilitation, 80(3), 346-347.

BOOK CHAPTERS

Bardos, A. N.  (2003). The General Ability measure for Adults (GAMA).  In R.S. McCallum.  Handbook of Nonverbal Assessment.  New York, Kluwer Academic.
Bardos, A. N. (2001). The General Ability Measure for Adults.  In Dorfman, W. & Hersen, M. Understanding Psychological Assessment.  New York, Kluwer Academic /Plenum Publishers.

DISSERTATIONS

Martin, T. A. (2000). Validity assessment of the General Ability Measure for Adults. (Doctoral dissertation). Retrieved from Dissertations and Theses database. (UMI No. 9931975)
Melnick, L.B. (2005). Validity of three brief intelligence measures: The Wechsler Abbreviated Scale of Intelligence, theKaufman Brief Intelligence Test, and the General Ability Measure for Adults. (Master’s dissertation). Retrieved from Dissertations and Theses database. (UMI No. 1427609)

 

SELECTED GAMA RELATED PRESENTATIONS IN PROFESSIONAL MEETINGS.

Zafiris, C. ,  Bardos, A.N. , Villard, A. (August, 2009).  Utilizing the GAMA and OPIE-3 (MR) Formula in Estimating Premorbid Functioning.   Paper presented at the annual meeting of the American Psychological Association, Toronto, Canada.
Zafiris, C. M., Bardos, A.N. (November, 2007). Estimating premorbid abilities utilizing the GAMA and BASI-Survey.  Paper presented at the annual meeting of the National Academy of Neuropsychology, Scottsdale, AZ.
Bunce, R., Reva, K. & Bardos, A. (August, 2007).  Concurrent validity of the General Ability measure for Adults and the Mini Battery of Achievement.  Paper presented at the annual meeting of American Psychological Association, San Francisco, California.
Bardos, A. N. Johnson, K. (August,  2007). A cross-cultural investigation of the General Abilities Measure for Adults in Mexico.  Paper presented at the annual meeting of American Psychological Association, San Francisco, California.
Bardos, A.N. (July 2004).  Assessment of cognitive and academic skills in correction settings. Paper presented at the 59th International Corrections Educational Association conference. Baltimore Maryland, USA.
Bardos, A. N. (April, 2004).  Effective evaluation of cognitive & achievement skills in corrections.  Paper presented at the mental health in corrections consortium- Forest Institute, Kansas City, MO.
Bardos, A.N. (October, 2003).  Designing an effective screening battery for the evaluation of cognitive and academic skills in corrections.  Paper presented at the annual meeting of the National Commission on Correctional Health Care. Austin, Texas.
Bardos, A.N., Economou, A. (May, 2003). Performance of an elderly sample with memory difficulties on the GAMA and Wechsler Memory Scale.  Paper presented at the  annual meeting of the Greek Psychological Association, Rhodos, Greece.
Davis, A. Bardos, A.N. Petrogiannis, K. (October, 2002). Concurrent validity of the General Ability Measure for Adults: Relationship to WAIS-III.  Paper presented at the 20th annual meeting of the National Academy of Neuropsychology, Miami, Florida.
Bardos, A.N. (August- 2002). Assessment of Diverse populations using the GAMA.  Paper presented at the annual meeting of the American Psychological Association, Chicago.
Bardos, A. N. (November, 2001).  Fair assessment of adolescent & Adults intelligence in correctional settings.  Paper presented at the 25th national conference on correctional health care, Albuquerque, New Mexico.
Bardos, A.N. (October 2001).  The use of GAMA in the intake psychological assessment of adult inmates.  Paper presented at the State of Nebraska, Department of Correctional services.
Petrogiannis, K., Bardos, A. & Politikos, N. (May, 2001). A cross-cultural study of the "General Ability Measure for Adults" (GAMA) with Greek and American samples: A first pilot study. 8th Panhellenic Congress of Psychological research, Alexandroupolis, 24-27 [in Greek]
Bardos, A.N. (March, 2000).  Assessing the cognitive ability of diverse populations using non-verbal IQ tests.  Paper presented at the annual Spring Education Conference on Clinical Updates in Correctional Health Care. New Orleans, Louisiana.
Bardos, A.N. & Festa, T. (November 2000).  The GAMA and its relationship to Achievement.  Paper presented at at the 20th annual meeting of the National Academy of Neuropsychology, Orlando, Florida.
Bardos, A. N. Ososkie, J. (March, 1999).  Testing Diverse Populations using the General Ability Measure for Adults.  Paper presented at the annual meeting of the Alliance for Rehabilitation  Counseling, Dallas, Texas.
Bardos, A.N. Politikos, N. , Crawford, N. Athanasiou, M. (April, 1999).  Testing diverse populations with the UNIT, NNAT & GAMA.  Symposium presented at the annual meeting of the Rocky Mountain Psychological Association
Crawford, N., Festa, T., Sutton, L. & Bardos, A. N. (November, 1999).  The predictive validity of the General Ability Measure for Adults.  Paper presented at the annual meeting of the National Association of Neuropsychology, San Antonio Texas.
Festa, T., Sutton, L., Crawford, N., & Bardos, A. N. (November, 1999).  Measuring the cognitive ability of Nursing Home Residents on the GAMA.  Paper presented at the annual meeting of the National Association of Neuropsychology, San Antonio Texas.
Bardos, A. N., Crawford, N.,& Festa, T., (November, 1999).  Concurrent validity of the General Ability Measure for Adults.  Paper presented at the annual meeting of the National Association of Neuropsychology, San Antonio Texas.
 
Bardos, A.N., Skinner, C. (August, 1998).  Performance of Traumatically Brain-Injured sample on the GAMA.  Paper presented at the annual meeting of the American Psychological Association, San Francisco, CA.
Powell, S., Bardos, A.N. & Naglieri, J. (April, 1997).  Correlation of the GAMA and the K-BIT with a nursing home sample.  Paper presented at the annual meeting of the Rocky Mountain Psychological Association, Reno, Nevada.
Rhee, S., Skinner, C. & Johnson, J.& Bardos, A.N. (October, 1996).  Relationship between the Tower of Hanoi, brief measures of cognitive ability, and gender.  Paper presented at the annual meeting of the National Academy of Neuropsychology, New Orleans.
Skinner, C. Johnson, J. Bardos, A. & Rhee, S. (October, 1996).  Brief Measures of Cognitive ability and their relationship with Achievement.  Paper presented at the annual conference of the Colorado Society of School Psychologists, Vail, Colorado.
Sutton, L., Festa, T., Crawford, N., & Bardos A.N. (1999). A Concurrent validity of the General Ability Measure for Adults: Relationship to the Shipley and the Wonderlic. Paper presented at the 19th annual meeting of

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Contact Dr. Achilles Bardos for more information and place a link of my email abardos@comcast.net