https://orcid.org/0000-0001-6504-5822
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ABSTRACT
The present study aims to standardize the Bender-Gestalt II Test by exploring its psychometric properties on a Turkish sample between the ages of 4 and 17 years and to obtain its normative values. The standardization sample consisted of 2691 students aged 4.0–17.11 years/months from low, middle, and high socioeconomic statuses, attending preschool, primary, and high school education. The participants were administered the Bender-Gestalt II Test and other tests, including the Gesell Developmental Schedules test, Colored Progressive Matrices Test, Goodenough Draw-a-Man Test, Test of Nonverbal Intelligence, Raven Standard Progressive Matrices Test, and Visual-Aural Digit Span Test-Revised Form, according to their age groups. The results revealed the absolute agreement values of the Copy items to be between .87 and .98. Thereafter, we calculated the test-retest reliability coefficients of the Copy scores to range from .74 to .67 by age groups, while the split-half reliability coefficients for each age group were between .62 and .87. The results of the exploratory and confirmatory factor analyses suggested its single-factor structure for all age groups. The Copy scores showed significant correlations and predicted the criterion characteristics, which include general cognitive ability, mental development/fine motor skills, short-term memory, and attention. Overall, the present study confirmed that the Bender-Gestalt II Test is a valid, reliable, and standardized measure to evaluate the visual-motor integration ability of those aged 4.0–17.11 years/months.
Acknowledgements
We thankEge University Scientific Research Projects Program for supporting this project
Disclosure statement
No potential conflict of interest was reported by the author(s).