This test set consists of four oval cards which are printed on both sides with contrast levels of 1.25%, 2.5%, 5%, 10%, 25% and full contrast.
One card is left blank for presentation.
Durable and washable.
These cards rely on the idea that children and infants respond better to faces than to random symbols or shapes. These cards use a Peek-a-Boo Patti shape to hold the attention of children. Each card uses the same shape and is printed in six different contrast levels. With the use of the presentation card, testing is quick and easy. The child should respond to each contrast level they see. Peek-a-Boo Patti cards are great for testing infants and those with mental disabilities. Great for clinical testing.