They have bought into eclecticism via Janice Jenzen, a long time Oregon Autism educator. We can't offer only one solution because each child is different. However, by only offering an Eclectic solution, they have chosen a single methodology on behalf of our children and families. Eclecticism is, in itself, a methodology. In the least, probe data should be taken.
Teachers find taking data difficult because it gets in the way of teaching.
Therefore, data is often not taken or taken inconsitently. Instead of taking data on how and what the child is learning, various sporadic standardized, developmental, and subjective tests are given to determine where the child stands. Tests can include the EOW, GSI, language samples, etc. The GSI is supposed to be used to develop curriuculum. The certification process in ABA is pretty tough, they have a high standard of ethics and requirements of knowledge and experience.