| Matching | After seating the child in a chair, two visual stimuli (either photographs or images on a tablet PC) are presented on the desk. The child is then given another photograph and provided with a verbal instruction such as “Place it with the same one” or “Put it on the matching one.” The child is trained to match the given photograph with the identical visual stimulus. If the child correctly matches the photograph, reinforcement (praise and a snack) is provided immediately. If an incorrect response occurs, the same instruction is repeated, accompanied by a gestural prompt (pointing to the correct location where the photograph should be placed) to facilitate error correction. If the correct response is achieved with prompting, only neutral praise is given. |
| Pointing | After seating the child in a chair, two visual stimuli (either photographs or images on a tablet PC) are presented on the desk. The child is then given a verbal instruction such as“Point to [target]”. The child is trained to point to the correct visual stimulus in response to the instruction. If the child correctly points to the target stimulus, reinforcement (praise and a snack) is provided immediately. If an incorrect response occurs, the same instruction is repeated, accompanied by a gestural prompt (pointing to the correct stimulus) to facilitate error correction. If the correct response is achieved with prompting, only neutral praise is given. |
| Tact | After seating the child in a chair, a single visual stimulus (either a photograph or an image on a tablet PC) is presented. The child is then trained to verbally label the object shown in response to this nonverbal prompt. If the child correctly names the object within three seconds, reinforcement (praise and a snack) is provided immediately. If an incorrect response occurs, the same prompt is repeated, accompanied by a verbal prompt (providing the correct name of the object) to facilitate error correction. If the correct response is achieved with prompting, only neutral praise is given. |
| Intraverbal | After seating the child in a chair, a single visual stimulus (either a photograph or an image on a tablet PC) is presented while asking, “What is this?” In response to this verbal prompt, the child is trained to name the presented object. If the child correctly names the object within three seconds, reinforcement (praise and a snack) is provided immediately. If an incorrect response occurs, the same prompt is repeated, accompanied by a verbal prompt (providing the correct name of the object) to facilitate error correction. If the correct response is achieved with prompting, only neutral praise is given. |