Hornby et al. call R.A. Cummins 1988 book "The Neurologically Impaired-child: Doman-Delacato Techniques Reappraised" (Croom Helm, ), "The most comprehensive analysis of the rationale and effectiveness of the Doman-Delacato programme to date" and state Cummins uses neuroanatomy and neurophysiology to demonstrate that there is no sound scientific basis for the techniques used by the IAHP and concludes any benefit is likely due to increased activity and attention. Hornby et al. conclude, "It is now clear that the only results supporting the effectiveness of the programme come from a handful of early, poorly controlled studies." Kavale and Mostert and others also identified serious problems with the early research on the IAHP program. An analysis of higher quality studies found that students not receiving the treatment had better outcomes than those who were treated by the IAHP.