Donald D. Hammill, EdD, Nils A. Pearson, PhD, Judith K. Voress
Purpose: Measure both visual perception and visual-motor integration skills
Age Range: 4 through to 10 yrs
Time: Approximately 45 minutes
The DTVP-2 measures both visual perception and visual-motor integration skills. It has eight subtests, is based on updated theories of visual-perceptual development, and can be administered to individuals in approximately 45 minutes.
The DTVP-2 is a battery of eight subtests that measure different but interrelated visual-perceptual and visual-motor abilities. Each of the eight subtests measures a type of visual-perceptual ability that is easily classified as: Position in Space, Form Constancy, Spatial Relations, or Figure-Ground. In addition, each subtest is classified as either motor-reduced or motor-enhanced.
The battery, which is designed for use with children ages 4-10 years, has empirically established reliability and validity. Internal consistency reliabilities (i.e., alphas) and stability reliabilities (i.e., test-retest) for all scores exceed .80 at all ages. Standard scores, NCEs, percentiles, and age equivalents are provided in the Examiner's Manual. The normative sample consists of 1,972 children residing in 12 states. In addition, the DTVP-2 has demonstrated lack of bias relative to race, gender, and handedness.
The DTVP-2 can be used to document the presence and degree of visual-perceptual or visual-motor difficulties in children, to identify candidates for referral, to verify the effectiveness of intervention programmes, and to serve as a research tool.