Evaluating Change in the Communication Abilities of Aphasia Group Participants: An Investigation of Informed Versus Blind Responses on the Communicative Effectiveness Index (CETI)

Hirsch, Fabiane and Beeson, Pelagie and Holland, Audrey (2007) Evaluating Change in the Communication Abilities of Aphasia Group Participants: An Investigation of Informed Versus Blind Responses on the Communicative Effectiveness Index (CETI). [Clinical Aphasiology Paper]

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Abstract

The Communicative Effectiveness Index (CETI) is often used to document changes in functional communication abilities of aphasic individuals. On repeat administrations, raters are typically provided their previous responses (informed responding) rather than a clean, unmarked CETI form (blind responding). This investigation examines whether the CETI captures annual changes in functional communication for aphasia group participants and if there is any bias associated with informed versus blind responding. Findings suggest there may be a small difference between these types of responding, and that informed responding may be important for the CETI’s sensitivity to detect communication improvement in aphasia group participants.

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