Rhonda finds that tapping her hand on her bath water is very different from her previous experiences of tapping on a table, her high chair, and the floor. according to piaget, rhonda will need to her schema of "tapping."

Awaiver of the requirement for documentation of informed consent may be granted when: the investigator has no convenient place to store signed consent forms separate from the research datathe only record linking the subject and the research is the consent document and the principal risk is a breach of confidentiality.potential subjects might find some of the research questions embarrassing, personal, or intrusivethe subjects are literate in their own language; however, they do not read, write, or speak english