Product detailsThe C-BiLLT provides normdata from the age of 1;6 to 6;6 years. Obviously, the test may be assessed in older children when intellectual disability is suspected. Test results for children younger than 6;6 years are shown in percentile scores and test results for children older than 6;6 years are expressed as age equivalents.The C-BiLLT consists of the following sections:
A pre-test section used to confirm that the child can make a choice between two concrete objects. This section is made up of eight familiar items presented by the testleader. The examiner holds two items (the target and a foil) and asks the child to choose the target word spoken (e.g., “where is the ball”). Children can respond by reaching, pointing or using eye gaze. The child is then presented with the same eight familiar items but in photographic form. The child can proceed to the next section (learning module) if they correctly identify at least five objects and/or five photographs.
The computer test consists of 86 items that are presented over two parts.
Part I measures a child’s understanding of nouns, verbs, animals, objects and people.
Part II, the examiner presents 56 spoken sentences with increasing complexity of grammatical structures. For all items in this section, visual feedback regarding the selected response is shown to the child by a red square appearing around their chosen photograph.