The PDD Behavioral Inventory parent version consists of ten …show more content…
However, the PDDBI has some unique characteristics that were more noticeable than the Vineland, such as, the interpersonal rejection of the individuals with PDD. With this in mind, the PDDBI pointed out the obvious, such as, the children’s speech delay, compassion and the joint attention.
“Joint attention in children with autism, is an early developing social communication skill in , which two people usually a young child and an adult use gestures and observation to share attention with respect to interesting objects and events” (Jones & Carr, 2016).
Additionally, the Griffiths Mental Developmental Scales was implemented to measure the adaptive and cognitive of the children according to their age (Cohen, 2013).
Cohen (2003), previous stated that to compare the criterion related validity of the PDDBI, the autism scores were fundamental to determine the correlation between the PDDBI and the Autism Diagnostic Interview Revised (ADI-R). Therefore, a regression analysis required to be applied since the ADI-R focuses on the language proficiency and behavior for ages four and five years old while PDDBI, only concentrates in actual