An evaluation of the construct validity of the Developmental Test of Visual-Motor Integration using the Rasch Measurement Model

2009 ◽  
Vol 56 (6) ◽  
pp. 393-402 ◽  
Author(s):  
Ted Brown ◽  
Carolyn Unsworth ◽  
Carissa Lyons
Keyword(s):  
Construct Validity ◽  
Measurement Model ◽  
Rasch Measurement ◽  
Visual Motor Integration ◽  
Rasch Measurement Model ◽  
Developmental Test ◽  
Visual Motor

Evaluating Construct Validity of the Slosson Visual-Motor Performance Test Using the Rasch Measurement Model

2009 ◽  
Vol 108 (2) ◽  
pp. 367-382 ◽  
Author(s):  
Ted Brown ◽  
Carolyn Unsworth
Keyword(s):  
Construct Validity ◽  
Motor Performance ◽  
Performance Test ◽  
Measurement Model ◽  
Rasch Measurement ◽  
Measurement Properties ◽  
Current Form ◽  
Test Items ◽  
Rasch Measurement Model ◽  
Visual Motor

The aim of this study was to evaluate the construct validity of the Slosson Visual-Motor Performance Test by applying the Rasch Measurement Model to evaluate the test's scalability, dimensionality, differential item functioning based on sex, and hierarchical ordering. Participants were 400 children ages 5 to 12 years, recruited from six schools in Melbourne, Victoria, Australia. The Slosson Visual-Motor Performance Test requires a child to copy 14 different geometric designs three times each for a total 42 scale items. Children completed the test under the supervision of an occupational therapist. Overall, 13 of 42 of the test items exhibited poor measurement properties. As nearly one-third of the scale items were problematic, the Slosson Visual-Motor Performance Test in its current form is not recommended for clinical use.

Test of Visual-Motor Integration: Construct Validity in a Comparison with the Beery-Buktenica Developmental Test of Visual-Motor Integration

1997 ◽  
Vol 84 (3_suppl) ◽  
pp. 1439-1443 ◽  
Author(s):  
Cristina Preda
Keyword(s):  
Academic Achievement ◽  
Construct Validity ◽  
Basic Skills ◽  
Chronological Age ◽  
Visual Motor Integration ◽  
Comprehensive Test ◽  
Developmental Test ◽  
Visual Motor

The 1996 Test of Visual-Motor Integration manual states that an adjusted correlation of .95 was obtained between this test and the Beery-Buktenica Developmental Test of Visual-Motor Integration for 49 children with an average age of 9 years and that the adjusted .95 suggests equivalency of the tests. In the present study, for 103 children whose average age was 9 years, there was a correlation of .33 between the tests. Scores on the Beery-Buktenica test correlated more strongly than the Test of Visual-Motor Integration with both chronological age and academic achievement. Standard scores for the latter test were high compared to those of the Beery-Buktenica test and the Comprehensive Test of Basic Skills. Interscorer agreement was significantly lower, and more time was required to score the protocols. This study indicates that the 1996 version is not a substitute for the Beery-Buktenica test.

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