Test for Detection of Visual Perception Disorders in Children Aged 5–6 [VAP-8]

Description

The Test for Detection of Visual Perception Disorders in Children Aged 5–6 (VAP-8) is an early screening instrument designed to identify difficulties related to visual perception in preschool-aged children. It is intended for use by educators, psychologists, and professionals working in pediatric or developmental settings, and can help identify children who may require further assessment or support.

Purpose

The main purpose of the VAP-8 is the early detection of visual-processing difficulties before they have a greater impact on school readiness and subsequent learning.

The test assesses eight different visual-perceptual skills and aims to provide a multidimensional profile of the child’s strengths and possible areas of difficulty.

Structure

According to the provided material, the VAP-8 was developed by S. Koutros and L. Stavrou and is administered individually in a play-based format, with an average completion time of approximately 15 minutes.

It consists of 8 subtests assessing:

  • visual-motor coordination,
  • reproduction of shapes,
  • visual memory,
  • perception of position in space,
  • discrimination of similarities,
  • discrimination of shapes and letters,
  • color discrimination,
  • visual closure.

Scoring

The test is scored on the basis of both the child’s overall performance and separate scores for each subtest.

The scoring criteria are based on a standardized sample of 900 children aged 5–6 years from kindergartens in Attica and Thessaly. Scores reflect the child’s level of visual perception relative to the corresponding age group.

Statistical Analysis

The provided material reports high internal consistency, while the individual subtests allow for a multidimensional assessment of visual perception.

Minimum and maximum values are used to distinguish between typical and atypical development. For example, a low score on the visual-memory subtest may indicate possible difficulties in visual processing.

Validity

According to the provided material, the VAP-8 demonstrates good construct and content validity.

Its validity is supported through comparison with the Bender Gestalt Scale, while its structure is reported to be consistent with international measures of visual perception, such as Frostig’s Developmental Test of Visual Perception.

Reliability

The reliability of the test is supported by the reported high internal consistency (Cronbach’s alpha) and by its application in a large sample of preschool children.

However, the provided material does not specify an exact numerical Cronbach’s alpha coefficient.

Applications

The VAP-8 may be used in kindergartens, developmental services, special education settings, and psychoeducational assessment.

Its use may support the early identification of visual-processing difficulties and help determine whether a child may benefit from further diagnostic assessment or targeted educational intervention.

References

Vamvoulas, M. (2004). Topics in the Psychopedagogy of Reading. Athens: Agapikos.

Frostig, M. (1963). Developmental Test of Visual Perception. Los Angeles: Consulting Psychologists Press.

Hainmill, D., Pearson, N., & Voress, J. (1993). Developmental Test of Visual Perception. Austin: ProEd.