| Category | Details |
|---|---|
| Description | The Buzz Test (Schucman, 1960) was designed as part of a study to develop an objective, quantified measure of educability for children with severe intellectual disabilities. It assesses size discrimination ability using round, black discs of various sizes attached to a gray board. In pretest demonstrations, participants learned that placing a disc over its corresponding sample on the board would produce a buzzing sound. During the test, participants matched discs to the correct spots on the board. Six items, increasing in difficulty, were included. A transfer form utilized white discs to be matched with black samples on the board. The test demonstrated high stability and consistency, along with predictive and construct validity. |
| Author | Helen Schucman |
| Affiliation | Columbia-Presbyterian Medical Center, Division of Clinical Psychology |
| Purpose | The Buzz Test measures size discrimination ability. |
| Construct | Size Discrimination |
| Instrument Type | Test |
| Number of Items | Six items, arranged in increasing order of difficulty. |
| Format | Participants matched discs to the correct placement on a gray board. In the transfer form, white discs were matched to black samples on the board. |
| Reliability | The test demonstrated high stability and consistency in a sample of children with severe intellectual disabilities. |
| Validity | Both predictive and construct validity were evidenced in the same sample. |
| Factor Analysis | No factor analysis indicated. |
| Age Group | Childhood (birth–12 years) |
| Population Group | Human |
| Population Details | Sample: Severely Mentally Retarded Children |
| Keywords | Buzz Test; Size Discrimination; Test Development |
| Index Terms | Measurement; Perceptual Discrimination; Test Construction |
| Reference | Schucman, H. (1960). Evaluating the educability of the severely mentally retarded child. Psychological Monographs: General and Applied, 74(14), 1–32. https://doi.org/10.1037/h0093762 |
Cite this article
Mohammed looti (2026). Buzz Test. PSYCHOLOGICAL SCALES. Retrieved from https://scales.arabpsychology.com/s/buzz-test/
Mohammed looti. "Buzz Test." PSYCHOLOGICAL SCALES, 4 Apr. 2026, https://scales.arabpsychology.com/s/buzz-test/.
Mohammed looti. "Buzz Test." PSYCHOLOGICAL SCALES, 2026. https://scales.arabpsychology.com/s/buzz-test/.
Mohammed looti (2026) 'Buzz Test', PSYCHOLOGICAL SCALES. Available at: https://scales.arabpsychology.com/s/buzz-test/.
[1] Mohammed looti, "Buzz Test," PSYCHOLOGICAL SCALES, vol. X, no. Y, ص Z-Z, April, 2026.
Mohammed looti. Buzz Test. PSYCHOLOGICAL SCALES. 2026;vol(issue):pages.